WorldWideScience

Sample records for future particle physics

  1. Particle physics -- Future directions

    Energy Technology Data Exchange (ETDEWEB)

    Chris Quigg

    2001-11-29

    Wonderful opportunities await particle physics over the next decade, with the coming of the Large Hadron Collider at CERN to explore the 1-TeV scale (extending efforts at LEP and the Tevatron to unravel the nature of electroweak symmetry breaking) and many initiatives to develop our understanding of the problem of identity: what makes a neutrino a neutrino and a top quark a top quark. Here I have in mind the work of the B factories and the Tevatron collider on CP violation and the weak interactions of the b quark; the wonderfully sensitive experiments at Brookhaven, CERN, Fermilab, and Frascati on CP violation and rare decays of kaons; the prospect of definitive accelerator experiments on neutrino oscillations and the nature of the neutrinos; and a host of new experiments on the sensitivity frontier. We might even learn to read experiment for clues about the dimensionality of spacetime. If we are inventive enough, we may be able to follow this rich menu with the physics opportunities offered by a linear collider and a (muon storage ring) neutrino factory. I expect a remarkable flowering of experimental particle physics, and of theoretical physics that engages with experiment. I describe some of the great questions before us and the challenges of providing the instruments that will be needed to define them more fully and eventually to answer them.

  2. The Future of Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Bjorken, James

    2000-06-15

    After a very brief review of twentieth century elementary particle physics, prospects for the next century are discussed. First and most important are technological limits of opportunities; next, the future experimental program, and finally the status of the theory, in particular its limitations as well as its opportunities.

  3. CERN and the future of particle physics

    CERN Document Server

    Heuer, Rolf-Dieter

    2009-01-01

    With the start-up of the Large Hadron Collider, particle physics is entering into an exciting period of research and discovery with high prospects for exciting advances in our understanding of Nature. The results from the initial running at the LHC will provide the directions for the future of particle physics and as host to the LHC, CERN is in a unique position to play a key role in the future course of particle physics. Future major facilities in particle physics require the formation of collaborations on a global scale, and to this end organisational structures are being put in place to oversee such extended endeavours. This paper reviews the characteristic features of particle physics and analyses the routes to be taken for the future advancement of the field.

  4. CERN and the future of particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Heuer, Rolf-Dieter, E-mail: rolf.heuer@cern.c [University of Hamburg/DESY (Germany) and CERN (Switzerland)

    2009-06-01

    With the start-up of the Large Hadron Collider, particle physics is entering into an exciting period of research and discovery with high prospects for exciting advances in our understanding of Nature. The results from the initial running at the LHC will provide the directions for the future of particle physics and as host to the LHC, CERN is in a unique position to play a key role in the future course of particle physics. Future major facilities in particle physics require the formation of collaborations on a global scale, and to this end organisational structures are being put in place to oversee such extended endeavours. This paper reviews the characteristic features of particle physics and analyses the routes to be taken for the future advancement of the field.

  5. Particle Physics-Future Directions

    CERN Document Server

    Quigg, Christopher S

    2001-01-01

    Wonderful opportunities await particle physics over the next decade, with the coming of the Large Hadron Collider at CERN to explore the 1-TeV scale (extending efforts at LEP and the Tevatron to unravel the nature of electroweak symmetry breaking) and many initiatives to develop our understanding of the problem of identity: what makes a neutrino a neutrino and a top quark a top quark. Here I have in mind the work of the B factories and the Tevatron collider on CP violation and the weak interactions of the b quark; the wonderfully sensitive experiments at Brookhaven, CERN, Fermilab, and Frascati on CP violation and rare decays of kaons; the prospect of definitive accelerator experiments on neutrino oscillations and the nature of the neutrinos; and a host of new experiments on the sensitivity frontier. We might even learn to read experiment for clues about the dimensionality of spacetime. If we are inventive enough, we may be able to follow this rich menu with the physics opportunities offered by a linear colli...

  6. Particle physics constraints from future cosmological surveys

    CERN Document Server

    CERN. Geneva

    2016-01-01

    The next generation of cosmological surveys (of large scale structures, CMB polarisation, 21cm line), approved (Euclid, SKA, ...) or submitted (COrE+, LiteBird), have the potential to return a lot of relevant information for particle physics. I will present and comment some of the most recent sensitivity forecasts related to neutrino physics, light relics and Dark Matter properties.

  7. Future particle-physics projects in the United States

    Energy Technology Data Exchange (ETDEWEB)

    Denisov, D. S. [Fermilab

    2015-08-25

    Basic proposals of experiments aimed at precision measurements of Standard Model parameters and at searches for new particles, including dark-matter particles, are described along with future experimental projects considered by American Physical Society at the meeting in the summer of 2013 and intended for implementation within the next ten to twenty years.

  8. The future of CO2 cooling in particle physics detectors

    NARCIS (Netherlands)

    B. Verlaat; A.P. Colijn; H. Postema

    2011-01-01

    Evaporative CO2 cooling has attracted a lot of interest as cooling fluid for particle physics detectors. Two detectors (the AMS on the International Space Station and the LHCb at the Large Hadron Collider at CERN) have been equipped with CO2 cooling; many more particle detectors are considering it f

  9. Particle physics for primary schools—enthusing future physicists

    Science.gov (United States)

    Pavlidou, M.; Lazzeroni, C.

    2016-09-01

    In recent years, the realisation that children make decisions and choices about subjects they like in primary school, became widely understood. For this reason academic establishments focus some of their public engagement activities towards the younger ages. Taking advantage of Professor Lazzeroni’s long-standing experience in particle physics research, during the last academic year we designed and trialled a particle physics workshop for primary schools. The workshop allows young children (ages 8-11) to learn the world of fundamental particles, use creative design to make particle models. The workshop has already been trialled in many primary schools, receiving very positive evaluation. The initial resources were reviewed and improved, based on the feedback received from school teachers and communicators.

  10. Research accomplishments and future goals in particle physics

    Energy Technology Data Exchange (ETDEWEB)

    1990-11-30

    This document presents our proposal to continue the activities of Boston University researchers in high energy physics research. We have a broad program of participation in both non-accelerator and accelerator-based efforts. High energy research at Boston University has a special focus on the physics program of the Superconducting Supercollider. We are active in research and development for detector subsystems, in the design of experiments, and in study of the phenomenology of the very high energy interactions to be observed at the SSC. The particular areas discussed in this paper are: colliding beams physics; accelerator design physics; MACRO project; proton decay project; theoretical particle physics; muon G-2 project; fast liquid scintillators; SSCINTCAL project; TRD project; massively parallel processing for the SSC; and physics analysis and vertex detector upgrade at L3.

  11. Research accomplishments and future goals in particle physics

    Science.gov (United States)

    1990-01-01

    Eight projects in high energy physics research are reviewed: study of high energy electron-positron annihilation, using SLD detector at SLAC. Development of integrated transition radiation detection and tracking for an SSC detector; Development of new concepts for particle accelerator components, including design and prototyping of high-precision electrostatic and magnetic elements; Development of a new underground detector facility in the Gran Saso Laboratory in Italy to search for magnetic monopoles and to study astrophysical muons and neutrinos; Search for proton decay and neutrinos from point astrophysical sources, and the study of cosmic ray muons and neutrinos in the IMB detector; Study of theoretical particle physics, including lattice gauge theories, string theories, phenomenology of the Standard Model and its extensions, and application of particle physics concepts to the early universe, cosmology and astrophysics, as well as the extension of these techniques into computational physics; Preparation of an experiment to measure the anomalous magnetic moment of the muon in a new superconducting storage ring and detector system at BNL; Fabrication (with M.I.T. and Princeton) of the BGO endcaps and associated tracking chambers for the L3 detector at LEP. Development of a central tracker for the SSC; and this new tasks requests support for research, development, and beam testing of a prototype SSC calorimeter featuring a tower geometry and composed of lead alloy and scintillating fibers.

  12. Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 8: Instrumentation Frontier

    Energy Technology Data Exchange (ETDEWEB)

    Demarteau, M.; et al.

    2014-01-23

    These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 8, on the Instrumentation Frontier, discusses the instrumentation needs of future experiments in the Energy, Intensity, and Cosmic Frontiers, promising new technologies for particle physics research, and issues of gathering resources for long-term research in this area.

  13. Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 8: Instrumentation Frontier

    CERN Document Server

    Demarteau, M; Nicholson, H; Shipsey, I; Akerib, D; Albayrak-Yetkin, A; Alexander, J; Anderson, J; Artuso, M; Asner, D; Ball, R; Battaglia, M; Bebek, C; Beene, J; Benhammou, Y; Bentefour, E; Bergevin, M; Bernstein, A; Bilki, B; Blucher, E; Bolla, G; Bortoletto, D; Bowden, N; Brooijmans, G; Byrum, K; Cabrera, B; Cancelo, G; Carlstrom, J; Casey, B; Chang, C; Chapman, J; Chen, C H; Childres, I; Christian, D; Convery, M; Corso, W Cooper J; Cumalat, J; Cushman, P; Da Via, C; Dazeley, S; Debbins, P; Deptuch, G; Dhawan, S; Di Benedetto, V; DiGiovene, B; Djurcic, Z; Dye, S; Elagin, A; Estrada, J; Evans, H; Etzion, E; Fast, J; Ferretti, C; Fisher, P; Fleming, B; Francis, K; Friedman, P; Frisch, H; Garcia-Sciveres, M; Gatto, C; Geronim, G; Gilchriese, G; Golwala, S; Grant, C; Grillo, A; Grünendahl, E; Gorham, P; Guan, L; Gutierrez, G; Haber, C; Hall, J; Haller, G; Hast, C; Heintz, U; Hemmick, T; Hitlin, D G; Hogan, C; Hohlmann, M; Hoppe, E; Hsu, L; Huffer, M; Irwin, K; Izraelevitch, F; Jennings, G; Johnson, M; Jung, A; Kagan, H; Kenney, C; Kettell, S; Khanna, R; Khristenko, V; Krennrich, F; Kuehn, K; Kutschke, R; Learned, J; Lee, A T; Levin, D; Liu, T; Liu, A T K; Lissauer, D; Love, J; Lynn, D; MacFarlane, D; Magill, S; Majewski, S; Mans, J; Maricic, J; Marleau, P; Mazzacane, A; McKinsey, D; Mehl, J; Mestvirisvilli, A; Meyer, S; Mokhov, N; Moshe, M; Mukherjee, A; Murat, P; Nahn, S; Narain, M; Nadel-Turonski, P; Newcomer, M; Nishimura, K; Nygren, D; Oberla, E; Onel, Y; Oreglia, M; Orrell, J; Paley, J; Para, A; Parker, S; Polychronakos, V; Pordes, S; Privitera, P; Prosser, A; Pyle, M; Raaf, J; Ramberg, E; Rameika, R; Rebel, B; Repond, J; Reyna, D; Ristori, L; Rivera, R; Ronzhin, A; Rusack, R; Russ, J; Ryd, A; Sadrozinski, H; Sahoo, H; Sanchez, M C; Sanzeni, C; Schnetzer, S; Seidel, S; Seiden, A; Schmidt, I; Shenai, A; Shutt, T; Silver, Y; Smith, W; Snowden-Ifft, D; Sonnenschein, A; Southwick, D; Spiegel, L; Stanitzki, M; Striganov, S; Su, D; Sumner, R; Svoboda, R; Sweany, M; Talaga, R; Tayloe, R; Tentindo, S; Terentiev, N; Thom-Levy, J; Thorn, C; Tiffenberg, J; Trischuk, W; Tschirhart, R; Turner, M; Underwood, D; Uplegger, L; Urheim, J; Vagins, M; Van Bibber, K; Varner, G; Varner, R; Va'vra, J; Von der Lippe, H; Wagner, R; Wagner, S; Weaverdyck, C; Wenzel, H; Weinstein, A; Wetstein, M; White, A; Wigman, R; Wilson, P; Winn, D; Winter, P; Woody, C; Xia, L; Xie, J Q; Ye, Z; Yeh, M F; Yetkin, T; Yoo, J H; Yu, J; Yu, J M; Zeller, S; Zhang, J L; Zhu, J J; Zhou, B; Zhu, R Y; Zitzer, B

    2014-01-01

    These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 8, on the Instrumentation Frontier, discusses the instrumentation needs of future experiments in the Energy, Intensity, and Cosmic Frontiers, promising new technologies for particle physics research, and issues of gathering resources for long-term research in this area.

  14. Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 1: Summary

    Energy Technology Data Exchange (ETDEWEB)

    Rosner, J.L.; et al.

    2014-01-23

    These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 1 contains the Executive Summary and the summaries of the reports of the nine working groups.

  15. Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 1: Summary

    CERN Document Server

    Rosner, J L; Barletta, W; Bauerdick, L A T; Bernstein, R H; Brock, R; Cronin-Hennessy, D; Demarteau, M; Dine, M; Feng, J L; Gilchriese, M; Gottlieb, S; Graf, N; Hadley, N; Hewett, J L; Lipton, R; McBride, P; Nicholson, H; Peskin, M E; Ramond, P; Ritz, S; Shipsey, I; Varelas, N; Weerts, H; Yurkewicz, K

    2014-01-01

    These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 1 contains the Executive Summary and the summaries of the reports of the nine working groups.

  16. Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 3: Energy Frontier

    CERN Document Server

    Brock, R; Agashe, K; Artuso, M; Campbell, J; Dawson, S; Erbacher, R; Gerber, C; Gershtein, Y; Gritsan, A; Hatakeyama, K; Huston, J; Kotwal, A; Logan, H; Luty, M; Melnikov, K; Narain, M; Papucci, M; Petriello, F; Prell, S; Qian, J; Schwienhorst, R; Tully, C; Van Kooten, R; Wackeroth, D; Wang, L; Whiteson, D

    2014-01-01

    These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 3, on the Energy Frontier, discusses the program of research with high-energy colliders. This area includes experiments on the Higgs boson, the electroweak and strong interactions, and the top quark. It also encompasses direct searches for new particles and interactions at high energy.

  17. Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 3: Energy Frontier

    Energy Technology Data Exchange (ETDEWEB)

    Brock, R.; et al.

    2014-01-23

    These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 3, on the Energy Frontier, discusses the program of research with high-energy colliders. This area includes experiments on the Higgs boson, the electroweak and strong interactions, and the top quark. It also encompasses direct searches for new particles and interactions at high energy.

  18. Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 2: Intensity Frontier

    CERN Document Server

    Hewett, J L; Babu, K S; Butler, J; Casey, B; de Gouvea, A; Essig, R; Grossman, Y; Hitlin, D; Jaros, J; Kearns, E; Kumar, K; Ligeti, Z; Lu, Z -T; Pitts, K; Ramsey-Musolf, M; Ritchie, J; Scholberg, K; Wester, W; Zeller, G P

    2014-01-01

    These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 2, on the Intensity Frontier, discusses the program of research with high-intensity beams and rare processes. This area includes experiments on neutrinos, proton decay, charged-lepton and quark weak interactions, atomic and nuclear probes of fundamental symmetries, and searches for new, light, weakly-interacting particles.

  19. Planning the Future of U.S. Particle Physics (Snowmass 2013): Chapter 4: Cosmic Frontier

    Energy Technology Data Exchange (ETDEWEB)

    Feng, J. L. [MIT, LNS; Ritz, S. [UC, Santa Cruz; Beatty, J. J. [Ohio State U.; Buckley, J. [Washington U., Seattle; Cowen, D. F. [Penn State U.; Cushman, P. [Minnesota U.; Dodelson, S. [Chicago U., Astron. Astrophys. Ctr.; Galbiati, C. [PNPI, CSTD; Honscheid, K. [Ohio State U.; Hooper, D. [Chicago U., Astron. Astrophys. Ctr.; Kaplinghat, M. [UC, Irvine; Kusenko, A. [Unlisted; Matchev, K. [Florida U.; McKinsey, D. [Yale U.; Nelson, A. E. [Washington U., Seattle; Olinto, A. [Chicago U., EFI; Profumo, S. [UC, Santa Cruz; Robertson, H. [Washington U., Seattle; Rosenberg, L. [Unlisted; Sinnis, G. [Los Alamos; Tait, T. M.P. [UCLA

    2014-01-23

    These reports present the results of the 2013 Community Summer Study of the APS Division of Particles and Fields ("Snowmass 2013") on the future program of particle physics in the U.S. Chapter 4, on the Cosmic Frontier, discusses the program of research relevant to cosmology and the early universe. This area includes the study of dark matter and the search for its particle nature, the study of dark energy and inflation, and cosmic probes of fundamental symmetries.

  20. Particle physics

    CERN Document Server

    Kennedy, Eugene

    2012-01-01

    Stimulated by the Large Hadron Collider and the search for the elusive Higgs Boson, interest in particle physics continues at a high level among scientists and the general public. This book includes theoretical aspects, with chapters outlining the generation model and a charged Higgs boson model as alternative scenarios to the Standard Model. An introduction is provided to postulated axion photon interactions and associated photon dispersion in magnetized media. The complexity of particle physics research requiring the synergistic combination of theory, hardware and computation is described in terms of the e-science paradigm. The book concludes with a chapter tackling potential radiation hazards associated with extremely weakly interacting neutrinos if produced in copious amounts with future high-energy muon-collider facilities.

  1. Particle Physics

    CERN Document Server

    Martin, B R

    2008-01-01

    An essential introduction to particle physics, with coverage ranging from the basics through to the very latest developments, in an accessible and carefully structured text. Particle Physics: Third Edition is a revision of a highly regarded introduction to particle physics. In its two previous editions this book has proved to be an accessible and balanced introduction to modern particle physics, suitable for those students needed a more comprehensive introduction to the subject than provided by the 'compendium' style physics books. In the Third Edition the standard mod

  2. Particle physics

    CERN Document Server

    Martin, Brian R

    2017-01-01

    An accessible and carefully structured introduction to Particle Physics, including important coverage of the Higgs Boson and recent progress in neutrino physics. Fourth edition of this successful title in the Manchester Physics series. Includes information on recent key discoveries including : An account of the discovery of exotic hadrons, beyond the simple quark model; Expanded treatments of neutrino physics and CP violation in B-decays; An updated account of ‘physics beyond the standard model’, including the interaction of particle physics with cosmology; Additional problems in all chapters, with solutions to selected problems available on the book’s website; Advanced material appears in optional starred sections.

  3. Innovative experimental particle physics through technological advances: Past, present and future

    Energy Technology Data Exchange (ETDEWEB)

    Cheung, Harry W.K.; /Fermilab

    2005-01-01

    This mini-course gives an introduction to the techniques used in experimental particle physics with an emphasis on the impact of technological advances. The basic detector types and particle accelerator facilities will be briefly covered with examples of their use and with comparisons. The mini-course ends with what can be expected in the near future from current technology advances. The mini-course is intended for graduate students and post-docs and as an introduction to experimental techniques for theorists.

  4. Future directions in particle and nuclear physics at multi-GeV hadron beam facilities

    Energy Technology Data Exchange (ETDEWEB)

    Geesaman, D.F. [Argonne National Lab., IL (United States)] [ed.

    1993-11-01

    This report contains papers on the following topics in particle and nuclear physics: hadron dynamics; lepton physics; spin physics; hadron and nuclear spectroscopy; hadronic weak interactions; and Eta physics. These papers have been indexed separately elsewhere.

  5. Impact on Astrophysics and Elementary Particle Physics of recent and future Solar Neutrino data

    Science.gov (United States)

    Antonelli, V.; Miramonti, L.

    2014-06-01

    The study of neutrinos is fundamental to connect astrophysics and elementary particle physics. In this last decade solar neutrino experiments and Kam-LAND confirmed the LMA solution and further clarified the oscillation pattern. Borexino attacked also the study of the low energy neutrino spectrum. However, important points still need clarification, like the apparent anomaly in the vacuum to matter transition region. Besides, a more detailed study of the low energy components of the pp cycle, combined with a measurement of CNO fluxes, is compulsory, also to discriminate between the low and the high Z versions of the Solar Standard Models and solve the metallicity problem. We discuss the main recent advancements and the possibilities of studying these open problems with Borexino, SNO+ and the future experiments, like the next generation of scintillators.

  6. Impact on Astrophysics and Elementary Particle Physics of recent and future solar neutrino data

    CERN Document Server

    Antonelli, Vito

    2013-01-01

    The study of neutrinos is fundamental to connect astrophysics and elementary particle physics. In this last decade solar neutrino experiments and KamLAND confirmed the LMA solution and further clarified the mass and oscillation pattern. Borexino attacked also the study of the low energy neutrino spectrum. However, important points still need clarification, like the apparent anomaly in the vacuum to matter transition region. Besides, a more detailed study of the low energy components of the pp cycle, combined with a measurement of CNO fluxes, is compulsory, also to discriminate between the low and the high Z versions of the Solar Standard Models and solve the metallicity problem. We discuss the main recent advancements and the possibilities of studying these open problems with Borexino, SNO+ and the future experiments, like the next generation of scintillators.

  7. Particle Physics

    Science.gov (United States)

    Cooper, Necia Grant; West, Geoffrey B.

    1988-06-01

    Preface; Introduction; Part I. Theoretical Framework: 1. Scale and dimension - From animals to quarks Geoffrey B. West; 2. Particle physics and the standard model Stuart Raby, Richard C. Slansky and Geoffrey B. West; QCD on a Cray: the masses of elementary particles Gerald Guralnik, Tony Warnock and Charles Zemach; Lecture Notes - From simple field theories to the standard model; 3. Toward a unified theory: an essay on the role of supergravity in the search for unification Richard C. Slansky; 4. Supersymmetry at 100 GeV Stuart Raby; 5. The family problem T. Goldman and Michael Martin Nieto; Part II. Experimental Developments: 6. Experiments to test unification schemes Gary H. Sanders; 7. The march toward higher energies S. Peter Rosen; LAMPF II and the High-Intensity Frontier Henry A. Thiessen; The SSC - An engineering challenge Mahlon T. Wilson; 8. Science underground - the search for rare events L. M. Simmons, Jr; Part III. Personal Perspectives: 9. Quarks and quirks among friends Peter A. Carruthers, Stuart Raby, Richard C. Slansky, Geoffrey B. West and George Zweig; Index.

  8. Noble laureate Burton Richter to speak about future of particle physics

    CERN Multimedia

    Calder, Neil

    2007-01-01

    "As Dickens wrote, it is the best of times and the worst of times, says Nobel laureat Burton Richter, the Paul Pigott Professor in the Physical Sciences, at the Stanford Linera Accelerator Center and a pioneer of the particle colliders that now dominate high-energy physics."

  9. Impact on Astrophysics and Elementary Particle Physics of recent and future solar neutrino data

    OpenAIRE

    Antonelli, Vito; Miramonti, Lino

    2013-01-01

    The study of neutrinos is fundamental to connect astrophysics and elementary particle physics. In this last decade solar neutrino experiments and KamLAND confirmed the LMA solution and further clarified the mass and oscillation pattern. Borexino attacked also the study of the low energy neutrino spectrum. However, important points still need clarification, like the apparent anomaly in the vacuum to matter transition region. Besides, a more detailed study of the low energy components of the pp...

  10. Nobel laureate Burton Richter to speak about future of particle physics

    CERN Multimedia

    2007-01-01

    "Particle physics is about to transform our thinking once again. Experiments of the last 15 years suggest new forms of matter, new forces of nature and perhas even new dimensions of space and time. Pinning down the new ideas will require more data from larger and more expensive machines - at a time when funding is more difficult than ever to secure." (1,5 page)

  11. Research accomplishments and future goals in particle physics. Final technical report

    Energy Technology Data Exchange (ETDEWEB)

    1994-06-01

    This proposal presents the research accomplishments and ongoing activities of Boston University researchers in high energy physics. Some changes have been made in the structure of the program from the previous arrangement of tasks. Task B, Accelerator Design Physics, is being submitted as a separate proposal for an independent grant; this will be consistent with the nature of the research and the source of funding. Boston University is active in seven principal areas: (1) Task A: Colliding Beams -- physics of e{sup +}e{sup {minus}} and {anti p}p collisions; (2) Task C: MACRO Experiment -- search for magnetic monopoles and study of cosmic rays; (3) Task D: Proton Decay -- search for nucleon instability and study of neutrino interactions; (4) Tasks E, J, and N: Particle Theory -- theoretical high energy particle physics, including two Outstanding Junior Investigator awards; (5) Task F: Muon G-2 -- measurement of the anomalous magnetic moment of the muon; (6) Task K: SSCintcal -- calorimetry for the GEM Experiment; (7) Task L: Muon Detectors for the GEM Experiment. The body of the proposal is devoted to detailed discussions of each of the tasks. The total budget request for the program appears in a summary chapter that includes a general budget discussion and individual budget requests and explanations for each of the tasks.

  12. On the Way to Future's High Energy Particle Physics Transport Code

    CERN Document Server

    Bíró, Gábor; Futó, Endre

    2015-01-01

    High Energy Physics (HEP) needs a huge amount of computing resources. In addition data acquisition, transfer, and analysis require a well developed infrastructure too. In order to prove new physics disciplines it is required to higher the luminosity of the accelerator facilities, which produce more-and-more data in the experimental detectors. Both testing new theories and detector R&D are based on complex simulations. Today have already reach that level, the Monte Carlo detector simulation takes much more time than real data collection. This is why speed up of the calculations and simulations became important in the HEP community. The Geant Vector Prototype (GeantV) project aims to optimize the most-used particle transport code applying parallel computing and to exploit the capabilities of the modern CPU and GPU architectures as well. With the maximized concurrency at multiple levels the GeantV is intended to be the successor of the Geant4 particle transport code that has been used since two decades succe...

  13. Proton-driven plasma wakefield acceleration: a path to the future of high-energy particle physics

    CERN Document Server

    Assmann, R; Bohl, T; Bracco, C; Buttenschön, B; Butterworth, A; Caldwell, A; Chattopadhyay, S; Cipiccia, S; Feldbaumer, E; Fonseca, R A; Goddard, B; Gross, M; Grulke, O; Gschwendtner, E; Holloway, J; Huang, C; Jaroszynski, D; Jolly, S; Kempkes, P; Lopes, N; Lotov, K; Machacek, J; Mandry, S R; McKenzie, J W; Meddahi, M; Militsyn, B L; Moschuering, N; Muggli, P; Najmudin, Z; Noakes, T C Q; Norreys, P A; Öz, E; Pardons, A; Petrenko, A; Pukhov, A; Rieger, K; Reimann, O; Ruhl, H; Shaposhnikova, E; Silva, L O; Sosedkin, A; Tarkeshian, R; Trines, R M G N; Tückmantel, T; Vieira, J; Vincke, H; Wing, M; Xia G , G

    2014-01-01

    New acceleration technology is mandatory for the future elucidation of fundamental particles and their interactions. A promising approach is to exploit the properties of plasmas. Past research has focused on creating large-amplitude plasma waves by injecting an intense laser pulse or an electron bunch into the plasma. However, the maximum energy gain of electrons accelerated in a single plasma stage is limited by the energy of the driver. Proton bunches are the most promising drivers of wakefields to accelerate electrons to the TeV energy scale in a single stage. An experimental program at CERN { the AWAKE experiment { has been launched to study in detail the important physical processes and to demonstrate the power of proton-driven plasma wakefield acceleration. Here we review the physical principles and some experimental considerations for a future proton-driven plasma wakefield accelerator.

  14. Proton-driven plasma wakefield acceleration: a path to the future of high-energy particle physics

    CERN Document Server

    Assmann, R; Bohl, T; Bracco, C; Buttenschon, B; Butterworth, A; Caldwell, A; Chattopadhyay, S; Cipiccia, S; Feldbaumer, E; Fonseca, R A; Goddard, B; Gross, M; Grulke, O; Gschwendtner, E; Holloway, J; Huang, C; Jaroszynski, D; Jolly, S; Kempkes, P; Lopes, N; Lotov, K; Machacek, J; Mandry, S R; McKenzie, J W; Meddahi, M; Militsyn, B L; Moschuering, N; Muggli, P; Najmudin, Z; Noakes, T C Q; Norreys, P A; Oz, E; Pardons, A; Petrenko, A; Pukhov, A; Rieger, K; Reimann, O; Ruhl, H; Shaposhnikova, E; Silva, L O; Sosedkin, A; Tarkeshian, R; Trines, R M G N; Tuckmantel, T; Vieira, J; Vincke, H; Wing, M; Xia, G

    2014-01-01

    New acceleration technology is mandatory for the future elucidation of fundamental particles and their interactions. A promising approach is to exploit the properties of plasmas. Past research has focused on creating large-amplitude plasma waves by injecting an intense laser pulse or an electron bunch into the plasma. However, the maximum energy gain of electrons accelerated in a single plasma stage is limited by the energy of the driver. Proton bunches are the most promising drivers of wakefields to accelerate electrons to the TeV energy scale in a single stage. An experimental program at CERN -- the AWAKE experiment -- has been launched to study in detail the important physical processes and to demonstrate the power of proton-driven plasma wakefield acceleration. Here we review the physical principles and some experimental considerations for a future proton-driven plasma wakefield accelerator.

  15. Final Report: Particle Physics Research Program

    Energy Technology Data Exchange (ETDEWEB)

    Karchin, Paul E.

    2011-09-01

    We describe recent progress in accelerator-based experiments in high-energy particle physics and progress in theoretical investigations in particle physics. We also describe future plans in these areas.

  16. Particle physics: Axions exposed

    Science.gov (United States)

    Lombardo, Maria Paola

    2016-11-01

    Physicists are hunting for a particle called the axion that could solve two major puzzles in fundamental physics. An ambitious study calculates the expected mass of this particle, which might reshape the experimental searches. See Letter p.69

  17. Particle Physics & Astrophysics (PPA)

    Data.gov (United States)

    Federal Laboratory Consortium — Scientists at SLAC's Particle Physics and Astrophysics develop and utilize unique instruments from underground to outer space to explore the ultimate laws of nature...

  18. The Cosmology - Particle Physics Connection

    CERN Document Server

    Trodden, M

    2006-01-01

    Modern cosmology poses deep and unavoidable questions for fundamental physics. In this plenary talk, delivered in slightly different forms at the {\\it Particles and Nuclei International Conference} (PANIC05) in Santa Fe, in October 2005, and at the {\\it CMB and Physics of the Early Universe International Conference}, on the island of Ischia, Italy, in April 2006, I discuss the broad connections between cosmology and particle physics, focusing on physics at the TeV scale, accessible at the next and future generations of colliders

  19. Teaching particle physics

    CERN Document Server

    Hanley, P

    2000-01-01

    Particle physics attracts many students who hear of news from CERN or elsewhere in the media. This article examines which current A-level syllabuses include which bits of particle physics and surveys the many different types of resource available to teachers and students. (0 refs).

  20. Modern particle physics

    CERN Document Server

    AUTHOR|(CDS)2079874

    2013-01-01

    Unique in its coverage of all aspects of modern particle physics, this textbook provides a clear connection between the theory and recent experimental results, including the discovery of the Higgs boson at CERN. It provides a comprehensive and self-contained description of the Standard Model of particle physics suitable for upper-level undergraduate students and graduate students studying experimental particle physics. Physical theory is introduced in a straightforward manner with full mathematical derivations throughout. Fully-worked examples enable students to link the mathematical theory to results from modern particle physics experiments. End-of-chapter exercises, graded by difficulty, provide students with a deeper understanding of the subject. Online resources available at www.cambridge.org/MPP feature password-protected fully-worked solutions to problems for instructors, numerical solutions and hints to the problems for students and PowerPoint slides and JPEGs of figures from the book.

  1. Particle and nuclear physics

    CERN Document Server

    Faessler, Amand

    1971-01-01

    Progress in Particle and Nuclear Physics, Volume 26 covers the significant advances in understanding the fundamentals of particle and nuclear physics. This volume is divided into four chapters, and begins with a brief overview of the various possible ideas beyond the standard model, the problem they address and their experimental tests. The next chapter deals with the basic physics of neutrino mass based on from a gauge theoretic point of view. This chapter considers the various extensions of the standard electroweak theory, along with their implications for neutrino physics. The discussio

  2. Elementary particle physics

    Science.gov (United States)

    Perkins, D. H.

    1986-01-01

    Elementary particle physics is discussed. Status of the Standard Model of electroweak and strong interactions; phenomena beyond the Standard Model; new accelerator projects; and possible contributions from non-accelerator experiments are examined.

  3. RESEARCH IN PARTICLE PHYSICS

    Energy Technology Data Exchange (ETDEWEB)

    Kearns, Edward [Boston Universiy

    2013-07-12

    This is the final report for the Department of Energy Grant to Principal Investigators in Experimental and Theoretical Particle Physics at Boston University. The research performed was in the Energy Frontier at the LHC, the Intensity Frontier at Super-Kamiokande and T2K, the Cosmic Frontier and detector R&D in dark matter detector development, and in particle theory.

  4. Particle physics builds potential

    CERN Document Server

    Camporesi, Tiziano

    2004-01-01

    Surveys of the career prospects of particle physicists in Europe, such as that one carried out in 2000 at DELPHI, reveal that particle phycisists are much in demand. The findings are fairly independent of a student's nationality, despite the big differences in the education systems of different countries across the continent. According to the DELPHI survey, half of all physics students remain in an academic environment after graduation. For those particle physicists who leave academia, the DELPHI survey showed that about half find jobs in hi- tech industry. The bottom line is that a degree in physics offers very good job prospects and career opportunities. (Edited abstract).

  5. Nuclear and particle physics

    CERN Document Server

    Amsler, Claude

    2015-01-01

    Nuclear and Particle Physics provides an introductory course on nuclear and particle physics for undergraduate and early-graduate students, which the author has taught for several years at the University of Zurich. It contains fundamentals on both nuclear and particle physics, giving emphasis to the discovery and history of developments in the field, and is experimentally/phenomenologically oriented. It contains detailed derivations of formulae such as 2–3 body phase space, the Weinberg-Salam model, and neutrino scattering. Originally published in German as Kern- und Teilchenphysik, several sections have been added to this new English version to cover modern topics, including updates on neutrinos, the Higgs boson, the top quark and bottom quark physics.

  6. Particle physics and cosmology

    Energy Technology Data Exchange (ETDEWEB)

    Kolb, E.W.

    1986-10-01

    This series of lectures is about the role of particle physics in physical processes that occurred in the very early stages of the bug gang. Of particular interest is the role of particle physics in determining the evolution of the early Universe, and the effect of particle physics on the present structure of the Universe. The use of the big bang as a laboratory for placing limits on new particle physics theories will also be discussed. Section 1 reviews the standard cosmology, including primordial nucleosynthesis. Section 2 reviews the decoupling of weakly interacting particles in the early Universe, and discusses neutrino cosmology and the resulting limits that may be placed on the mass and lifetime of massive neutrinos. Section 3 discusses the evolution of the vacuum through phase transitions in the early Universe and the formation of topological defects in the transitions. Section 4 covers recent work on the generation of the baryon asymmetry by baryon-number violating reactions in Grand Unified Theories, and mentions some recent work on baryon number violation effects at the electroweak transition. Section 5 is devoted to theories of cosmic inflation. Finally, Section 6 is a discussion of the role of extra spatial dimensions in the evolution of the early Universe. 78 refs., 32 figs., 6 tabs.

  7. Particle accelerator physics

    CERN Document Server

    Wiedemann, Helmut

    2007-01-01

    Particle Accelerator Physics is an in-depth and comprehensive introduction to the field of high-energy particle acceleration and beam dynamics. Part I gathers the basic tools, recalling the essentials of electrostatics and electrodynamics as well as of particle dynamics in electromagnetic fields. Part II is an extensive primer in beam dynamics, followed in Part III by the introduction and description of the main beam parameters. Part IV is devoted to the treatment of perturbations in beam dynamics. Part V discusses the details of charged particle accleration. Part VI and Part VII introduce the more advanced topics of coupled beam dynamics and the description of very intense beams. Part VIII is an exhaustive treatment of radiation from accelerated charges and introduces important sources of coherent radiation such as synchrotrons and free-electron lasers. Part IX collects the appendices gathering useful mathematical and physical formulae, parameters and units. Solutions to many end-of-chapter problems are give...

  8. Future flavour physics experiments

    Science.gov (United States)

    2015-01-01

    The current status of flavour physics and the prospects for present and future experiments will be reviewed. Measurements in B‐physics, in which sensitive probes of new physics are the CKM angle γ, the Bs mixing phase ϕs, and the branching ratios of the rare decays B(s)0→μ+μ− , will be highlighted. Topics in charm and kaon physics, in which the measurements of ACP and the branching ratios of the rare decays K→πνν¯ are key measurements, will be discussed. Finally the complementarity of the future heavy flavour experiments, the LHCb upgrade and Belle‐II, will be summarised. PMID:26877543

  9. Research in particle physics

    Energy Technology Data Exchange (ETDEWEB)

    1993-08-01

    This proposal presents the research accomplishments and ongoing activities of Boston University researchers in high energy physics. Some changes have been made in the structure of the program from the previous arrangement of tasks. Task B, Accelerator Design Physics, is being submitted as a separate proposal for an independent grant; this will be consistent with the nature of the research and the source of funding. We are active in seven principal areas which will be discussed in this report: Colliding Beams - physics of e{sup +}e{sup {minus}} and {bar p}p collisions; MACRO Experiment - search for magnetic monopoles and study of cosmic rays; Proton Decay - search for nucleon instability and study of neutrino interactions; Particle Theory - theoretical high energy particle physics, including two Outstanding Junior Investigator awards; Muon G-2 - measurement of the anomalous magnetic moment of the muon; SSCintcal - calorimetry for the GEM Experiment; and Muon detectors for the GEM Experiment.

  10. Review of Particle Physics

    Science.gov (United States)

    Patrignani, C.; Particle Data Group; et al.

    2016-10-01

    The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,062 new measurements from 721 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. All the particle properties and search limits are listed in Summary Tables. We also give numerous tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, Probability and Statistics. Among the 117 reviews are many that are new or heavily revised, including those on Pentaquarks and Inflation. The complete Review is published online in a journal and on the website of the Particle Data Group (http://pdg.lbl.gov). The printed PDG Book contains the Summary Tables and all review articles but no longer includes the detailed tables from the Particle Listings. A Booklet with the Summary Tables and abbreviated versions of some of the review articles is also available. Contents Abstract, Contributors, Highlights and Table of ContentsAcrobat PDF (150 KB) IntroductionAcrobat PDF (456 KB) Particle Physics Summary Tables Gauge and Higgs bosonsAcrobat PDF (155 KB) LeptonsAcrobat PDF (134 KB) QuarksAcrobat PDF (84 KB) MesonsAcrobat PDF (871 KB) BaryonsAcrobat PDF (300 KB) Searches (Supersymmetry, Compositeness, etc.)Acrobat PDF (91 KB) Tests of conservation lawsAcrobat PDF (330 KB) Reviews, Tables, and Plots Detailed contents for this sectionAcrobat PDF (37 KB) Constants, Units, Atomic and Nuclear PropertiesAcrobat PDF (278 KB) Standard Model and Related TopicsAcrobat PDF (7.3 MB) Astrophysics and CosmologyAcrobat PDF (2.7 MB) Experimental Methods and CollidersAcrobat PDF (3.8 MB) Mathematical Tools or Statistics, Monte Carlo, Group

  11. Lectures in particle physics

    CERN Document Server

    Green, Dan

    1994-01-01

    The aim of this book on particle physics is to present the theory in a simple way. The style and organization of the material is unique in that intuition is employed, not formal theory or the Monte Carlo method. This volume attempts to be more physical and less abstract than other texts without degenerating into a presentation of data without interpretation.This book is based on four courses of lectures conducted at Fermilab. It should prove very useful to advanced undergraduates and graduate students.

  12. Cosmology and particle physics

    Science.gov (United States)

    Turner, Michael S.

    1988-01-01

    The interplay between cosmology and elementary particle physics is discussed. The standard cosmology is reviewed, concentrating on primordial nucleosynthesis and discussing how the standard cosmology has been used to place constraints on the properties of various particles. Baryogenesis is discussed, showing how a scenario in which the B-, C-, and CP-violating interactions in GUTs provide a dynamical explanation for the predominance of matter over antimatter and for the present baryon-to-photon ratio. It is shown how the very early dynamical evolution of a very weakly coupled scalar field which is initially displaced from the minimum of its potential may explain a handful of very fundamental cosmological facts which are not explained by the standard cosmology.

  13. Proceedings of the workshop on nuclear and particle physics at energies up to 31 GeV: new and future aspects

    Energy Technology Data Exchange (ETDEWEB)

    Bowman, J.D.; Kisslinger, L.S.; Silbar, R.R. (eds.)

    1981-03-01

    This report contains the proceedings of the LAMPF Workshop on Nuclear and Particle Physics at Energies up to 31 GeV, New and Future Aspects, held in Los Alamos, January 5 to 8, 1981. Included are invited talks and contributed papers covering recent developments in (a) weak and unified interactions (including discussions of neutrino oscillations), (b) the hadronic description of strong interactions, (c) the quark description of strong interactions, (d) hypernuclei, and (e) new facilities and proposed experiments. One of the motivations for the Workshop was to explore physics justifications for a future high-intensity proton accelerator in this energy regime. Separate abstracts were prepared for papers from this meeting. Six papers were previously included in the data base.

  14. Online Particle Physics Information

    Energy Technology Data Exchange (ETDEWEB)

    Kreitz, Patricia A

    2003-04-24

    This list describes a broad set of online resources that are of value to the particle physics community. It is prescreened and highly selective. It describes the scope, size, and organization of the resources so that efficient choices can be made amongst many sites which may appear similar. A resource is excluded if it provides information primarily of interest to only one institution. Because this list must be fixed in print, it is important to consult the updated version of this compilation which includes newly added resources and hypertext links to more complete information at: http://www.slac.stanford.edu/library/pdg/.

  15. Physics of windblown particles

    Science.gov (United States)

    Greeley, Ronald; Leach, Rodman; Marshall, John R.; White, Bruce; Iversen, James D.; Nickling, William G.; Gillette, Dale; Sorensen, Michael

    1987-01-01

    A laboratory facility proposed for the Space Station to investigate fundamental aspects of windblown particles is described. The experiments would take advantage of the environment afforded in earth orbit and would be an extension of research currently being conducted on the geology and physics of windblown sediments on earth, Mars, and Venus. Aeolian (wind) processes are reviewed in the planetary context, the scientific rational is given for specific experiments to be conducted, the experiment apparatus (the Carousel Wind Tunnel, or CWT) is described, and a plan presented for implementing the proposed research program.

  16. Experimental Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Rosenfeld, Carl [Univ of South Carolina; Mishra, Sanjib R. [Univ of South Carolina; Petti, Roberto [Univ of South Carolina; Purohit, Milind V. [Univ of South Carolina

    2014-08-31

    The high energy physics group at the University of South Carolina, under the leadership of Profs. S.R. Mishra, R. Petti, M.V. Purohit, J.R. Wilson (co-PI's), and C. Rosenfeld (PI), engaged in studies in "Experimental Particle Physics." The group collaborated with similar groups at other universities and at national laboratories to conduct experimental studies of elementary particle properties. We utilized the particle accelerators at the Fermi National Accelerator Laboratory (Fermilab) in Illinois, the Stanford Linear Accelerator Center (SLAC) in California, and the European Center for Nuclear Research (CERN) in Switzerland. Mishra, Rosenfeld, and Petti worked predominantly on neutrino experiments. Experiments conducted in the last fifteen years that used cosmic rays and the core of the sun as a source of neutrinos showed conclusively that, contrary to the former conventional wisdom, the "flavor" of a neutrino is not immutable. A neutrino of flavor "e," "mu," or "tau," as determined from its provenance, may swap its identity with one of the other flavors -- in our jargon, they "oscillate." The oscillation phenomenon is extraordinarily difficult to study because neutrino interactions with our instruments are exceedingly rare -- they travel through the earth mostly unimpeded -- and because they must travel great distances before a substantial proportion have made the identity swap. Three of the experiments that we worked on, MINOS, NOvA, and LBNE utilize a beam of neutrinos from an accelerator at Fermilab to determine the parameters governing the oscillation. Two other experiments that we worked on, NOMAD and MIPP, provide measurements supportive of the oscillation experiments. Good measurements of the neutrino oscillation parameters may constitute a "low energy window" on related phenomena that are otherwise unobservable because they would occur only at energies way above the reach of conceivable accelerators. Purohit and Wilson participated in the Ba

  17. Particle physics in your pocket!

    CERN Document Server

    Anaïs Schaeffer

    2012-01-01

    CERN physicists, take out your smartphones! Two new particle physics applications for Android phones have been developed by a physicist from the University of Bern: “Particle Properties” and “Particle Physics Booklet 2010”.   “When I'm on shift, I enjoy looking at the online event displays,” says Igor Kreslo from the Laboratory for High Energy Physics at the University of Bern, the physicist who has developed the two particle physics applications for Android. “Sometimes very beautiful events appear, with many different particles. I like to discuss these displays with my students, just to develop their ability to identify particles. We try to find out which particle is which and how it might decay… I think that's the best way to teach students the phenomenology of particle physics.” When scientists study particle physics, they require some vital information, such as the decay branching ...

  18. Experimental particle physics

    Science.gov (United States)

    Steinberg, R. I.; Lane, C. E.

    1992-09-01

    The goals of this research are the experimental testing of fundamental theories of physics beyond the standard model and the exploration of cosmic phenomena through the techniques of particle physics. We are working on the MACRO experiment, which employs a large-area underground detector to search for grand unification magnetic monopoles and dark matter candidates and to study cosmic ray muons as well as low- and high-energy neutrinos; the Chooz experiment to search for reactor neutrino oscillations at a distance of 1 km from the source; a new proposal (the Perry experiment) to construct a one-kiloton liquid scintillator in the Fairport, Ohio underground facility IMB to study neutrino oscillations with a 13 km baseline; and development of technology for improved liquid scintillators and for very-low-background materials in support of the MACRO and Perry experiments and for new solar neutrino experiments.

  19. Geneva University - Particle Physics Seminars

    CERN Multimedia

    Université de Genève

    2010-01-01

    GENEVA UNIVERSITY École de physique Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENÈVE 4 Tél. (022) 379 62 73 Fax: (022) 379 69 92 Wednesday 13 October 2010 PARTICLE PHYSICS SEMINAR at 17.00 hrs – Stückelberg Auditorium Exotic hadrons, Light Higgs and Dark Forces at BABAR Dr. Bertrand Echenard / California Institute of Technology From spectroscopy to search new physics, B-factories have explored many exciting topics besides establishing CP-violation in B decays. We will review recent results on spectroscopy, exotic hadrons and search for light Higgs. Current searches for dark forces and GeV-scale dark matter particles will also be discussed. Information : http://dpnc.unige.ch/seminaire/annonce.html Organizer : G. Pasztor Wednesday 20 October 2010 PARTICLE PHYSICS SEMINAR at 17.00 hrs – Stückelberg Auditorium The MINOS Experiment, Results and Future Plans Pro...

  20. Research in Elementary Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    White, Andrew Paul [Univ. of Texas, Arlington, TX (United States); De, Kaushik [Univ. of Texas, Arlington, TX (United States); Brandt, Andrew [Univ. of Texas, Arlington, TX (United States); Yu, Jaehoon [Univ. of Texas, Arlington, TX (United States); Farbin, Amir [Univ. of Texas, Arlington, TX (United States)

    2015-02-02

    This report details the accomplishments and research results for the High Energy Physics Group at the University of Texas at Arlington at the Energy and Intensity Frontiers. For the Energy Frontier we have made fundamental contributions in the search for supersymmetric particles, proposed to explain the stabilization of the mass of the Higgs Boson – the agent giving mass to all known particles. We have also made major contributions to the search for additional Higgs Bosons and to the planning for future searches. This work has been carried out in the context of the ATLAS Experiment at CERN (European Nuclear Research Laboratory) and for which we have made major contributions to computing and data distribution and processing, and have worked to calibrate the detector and prepare upgraded electronics for the future. Our other contribution to the Energy Frontier has been to the International Linear Collider (ILC) project, potentially hosted by Japan, and to the Silicon Detector Concept (SiD) in particular. We have lead the development of the SiD Concept and have worked on a new form of precise energy measurement for particles from the high energy collisions of electrons and positrons at the ILC. For the Intensity Frontier, we have worked to develop the concept of Long Baseline Neutrino Experiment(s) (LBNE) at the Fermi National Accelerator Laboratory. Our contributions to detector development, neutrino beam studies, particle identification, software development will facilitate future studies of the oscillation of one type of neutrino into other type(s), establish the order of the neutrino masses, and, through an innovative new idea, allow us to create a beam of dark matter particles.

  1. The Cosmology - Particle Physics Connection

    OpenAIRE

    Trodden, Mark(Center for Particle Cosmology, Department of Physics & Astronomy, University of Pennsylvania, 209 South 33rd Street, Philadelphia, PA 19104, United States)

    2006-01-01

    Modern cosmology poses deep and unavoidable questions for fundamental physics. In this plenary talk, delivered in slightly different forms at the {\\it Particles and Nuclei International Conference} (PANIC05) in Santa Fe, in October 2005, and at the {\\it CMB and Physics of the Early Universe International Conference}, on the island of Ischia, Italy, in April 2006, I discuss the broad connections between cosmology and particle physics, focusing on physics at the TeV scale, accessible at the nex...

  2. Fast-cycling superconducting synchrotrons and possible path to the future of US experimental high-energy particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Piekarz, Henryk; /Fermilab

    2008-02-01

    The authors outline primary physics motivation, present proposed new arrangement for Fermilab accelerator complex, and then discuss possible long-range application of fast-cycling superconducting synchrotrons at Fermilab.

  3. Elementary particle physics in early physics education

    CERN Document Server

    Wiener, Gerfried

    2017-01-01

    Current physics education research is faced with the important question of how best to introduce elementary particle physics in the classroom early on. Therefore, a learning unit on the subatomic structure of matter was developed, which aims to introduce 12-year-olds to elementary particles and fundamental interactions. This unit was iteratively evaluated and developed by means of a design-based research project with grade-6 students. In addition, dedicated professional development programmes were set up to instruct high school teachers about the learning unit and enable them to investigate its didactical feasibility. Overall, the doctoral research project led to successful results and showed the topic of elementary particle physics to be a viable candidate for introducing modern physics in the classroom. Furthermore, thanks to the design-based research methodology, the respective findings have implications for both physics education and physics education research, which will be presented during the PhD defen...

  4. Most wanted particle the inside story of the hunt for the Higgs, the heart of the future of physics

    CERN Document Server

    Butterworth, Jon

    2015-01-01

    The discovery of the Higgs boson has brought us a giant step closer to understanding how our universe works. But before the Higgs was found, its existence was hotly debated. Even Peter Higgs, who first pictured it, did not expect to see proof within his lifetime. The quest to find the Higgs would ultimately require perhaps the most ambitious experiment in human history. Jon Butterworth was there—a leading physicist on the ATLAS project at the Large Hadron Collider in Geneva, Switzerland. In Most Wanted Particle, he gives us the first insider account of the hunt for the Higgs, and of life at the collider itself—the world’s largest and most powerful particle accelerator, 17 miles long, 20 stories underground, and designed to “replay” the original Big Bang by smashing subatomic particles at nearly the speed of light. Writing with clarity and humor, Butterworth revels as much in the hard science—which he carefully reconstructs for readers of all levels—as in the messiness, uncertainty, and humanne...

  5. Particle physics: Quantum simulation of fundamental physics

    Science.gov (United States)

    Zohar, Erez

    2016-06-01

    Gauge theories underpin the standard model of particle physics, but are difficult to study using conventional computational methods. An experimental quantum system opens up fresh avenues of investigation. See Letter p.516

  6. Particle Physics Instrumentation

    OpenAIRE

    Riegler, Werner

    2014-01-01

    This report summarizes a series of three lectures aimed at giving an overview of basic particle detection principles, the interaction of particles with matter, the application of these principles in modern detector systems, as well techniques to read out detector signals in high-rate experiments.

  7. Physics at Future Hadron Colliders

    Energy Technology Data Exchange (ETDEWEB)

    Rizzo, Thomas G.

    2002-08-07

    We discuss the physics opportunities and detector challenges at future hadron colliders. As guidelines for energies and luminosities we use the proposed luminosity and/or energy upgrade of the LHC (SLHC), and the Fermilab design of a Very Large Hadron Collider (VLHC). We illustrate the physics capabilities of future hadron colliders for a variety of new physics scenarios (supersymmetry, strong electroweak symmetry breaking, new gauge bosons, compositeness and extra dimensions). We also investigate the prospects of doing precision Higgs physics studies at such a machine, and list selected Standard Model physics rates.

  8. Physics at future hadron colliders

    Energy Technology Data Exchange (ETDEWEB)

    U. Baur et al.

    2002-12-23

    We discuss the physics opportunities and detector challenges at future hadron colliders. As guidelines for energies and luminosities we use the proposed luminosity and/or energy upgrade of the LHC (SLHC), and the Fermilab design of a Very Large Hadron Collider (VLHC). We illustrate the physics capabilities of future hadron colliders for a variety of new physics scenarios (supersymmetry, strong electroweak symmetry breaking, new gauge bosons, compositeness and extra dimensions). We also investigate the prospects of doing precision Higgs physics studies at such a machine, and list selected Standard Model physics rates.

  9. Physics Needs for Future Accelerators

    CERN Document Server

    Lykken, J D

    2000-01-01

    Contents: 1. Prologomena to any meta future physics 1.1 Physics needs for building future accelerators 1.2 Physics needs for funding future accelerators 2. Physics questions for future accelerators 2.1 Crimes and misapprehensions 2.1.1 Organized religion 2.1.2 Feudalism 2.1.3 Trotsky was right 2.2 The Standard Model as an effective field theory 2.3 What is the scale of new physics? 2.4 What could be out there? 2.5 Model-independent conclusions 3. Future accelerators 3.1 What is the physics driving the LHC? 3.2 What is the physics driving the LC? 3.2.1 Higgs physics is golden 3.2.2 LHC won't be sufficient to unravel the new physics as the TeV scale 3.2.3 LC precision measurements can pin down new physics scales 3.3 Why a Neutrino Factory? 3.4 Pushing the energy frontier

  10. Particle accelerator physics

    CERN Document Server

    Wiedemann, Helmut

    2015-01-01

    This book by Helmut Wiedemann is a well-established, classic text, providing an in-depth and comprehensive introduction to the field of high-energy particle acceleration and beam dynamics. The present 4th edition has been significantly revised, updated and expanded. The newly conceived Part I is an elementary introduction to the subject matter for undergraduate students. Part II gathers the basic tools in preparation of a more advanced treatment, summarizing the essentials of electrostatics and electrodynamics as well as of particle dynamics in electromagnetic fields. Part III is an extensive primer in beam dynamics, followed, in Part IV, by an introduction and description of the main beam parameters and including a new chapter on beam emittance and lattice design. Part V is devoted to the treatment of perturbations in beam dynamics. Part VI then discusses the details of charged particle acceleration. Parts VII and VIII introduce the more advanced topics of coupled beam dynamics and describe very intense bea...

  11. Energetic particle physics

    Institute of Scientific and Technical Information of China (English)

    F. Zonca; G.Y. Fu; S.J. Wang

    2007-01-01

    @@ The confinement properties of energetic (EsslMeV) ions are a crucial aspect of burning plasmas since they are present both as fast particles generated via additional heating and current drive systems as well as charged fusion products. In the first case, successful plasma operations rely on the possibility of controlling plasma current and flow profiles via neutral beam injection (NBI) and plasma temperature profiles by both NBI and ion cyclotron resonant heating (ICRH). In the second case, fusion alpha particles must provide a significant fraction of the local power density, which is ultimately necessary for the sustainment of the plasma burning.

  12. The ABCs of particle physics

    CERN Document Server

    Biron, Lauren

    2016-01-01

    For lovers of rhymes and anthropomorphic Higgs bosons, Symmetry presents its first published board book, The ABCs of Particle Physics. Use it as an illustrated guide to basic particle- and astrophysics terms, or read it to your infant at bedtime, if you don’t mind their first word being “quark.”

  13. Ultraviolet extensions of particle physics

    DEFF Research Database (Denmark)

    Berthier, Laure Gaëlle

    particles. However, the lack of new resonances might suggest that these new particles are still out of reach which leaves us with few options. Two possibilities are explored in this thesis. The first is to study precision measurements which might indicate new physics as small deviations from the Standard...

  14. Nuclear physics and particle therapy

    Science.gov (United States)

    Battistoni, G.

    2016-05-01

    The use of charged particles and nuclei in cancer therapy is one of the most successful cases of application of nuclear physics to medicine. The physical advantages in terms of precision and selectivity, combined with the biological properties of densely ionizing radiation, make charged particle approach an elective choice in a number of cases. Hadron therapy is in continuous development and nuclear physicists can give important contributions to this discipline. In this work some of the relevant aspects in nuclear physics will be reviewed, summarizing the most important directions of research and development.

  15. Nuclear physics and particle therapy

    Directory of Open Access Journals (Sweden)

    Battistoni G.

    2016-01-01

    Full Text Available The use of charged particles and nuclei in cancer therapy is one of the most successful cases of application of nuclear physics to medicine. The physical advantages in terms of precision and selectivity, combined with the biological properties of densely ionizing radiation, make charged particle approach an elective choice in a number of cases. Hadron therapy is in continuous development and nuclear physicists can give important contributions to this discipline. In this work some of the relevant aspects in nuclear physics will be reviewed, summarizing the most important directions of research and development.

  16. Particle transport and deposition: basic physics of particle kinetics.

    Science.gov (United States)

    Tsuda, Akira; Henry, Frank S; Butler, James P

    2013-10-01

    The human body interacts with the environment in many different ways. The lungs interact with the external environment through breathing. The enormously large surface area of the lung with its extremely thin air-blood barrier is exposed to particles suspended in the inhaled air. The particle-lung interaction may cause deleterious effects on health if the inhaled pollutant aerosols are toxic. Conversely, this interaction can be beneficial for disease treatment if the inhaled particles are therapeutic aerosolized drugs. In either case, an accurate estimation of dose and sites of deposition in the respiratory tract is fundamental to understanding subsequent biological response, and the basic physics of particle motion and engineering knowledge needed to understand these subjects is the topic of this article. A large portion of this article deals with three fundamental areas necessary to the understanding of particle transport and deposition in the respiratory tract. These are: (i) the physical characteristics of particles, (ii) particle behavior in gas flow, and (iii) gas-flow patterns in the respiratory tract. Other areas, such as particle transport in the developing lung and in the diseased lung are also considered. The article concludes with a summary and a brief discussion of areas of future research.

  17. The Multiverse and Particle Physics

    Science.gov (United States)

    Donoghue, John F.

    2016-10-01

    The possibility of fundamental theories with very many ground states, each with different physical parameters, changes the way that we approach the major questions of particle physics. Most importantly, it raises the possibility that these different parameters could be realized in different domains in the larger universe. In this review, I survey the motivations for the multiverse and the impact of the idea of the multiverse on the search for new physics beyond the Standard Model.

  18. The Multiverse and Particle Physics

    CERN Document Server

    Donoghue, John F

    2016-01-01

    The possibility of fundamental theories with very many ground states, each with different physical parameters, changes the way that we approach the major questions of particle physics. Most importantly, it raises the possibility that these different parameters could be realised in different domains in the larger universe. In this review, we survey the motivations for the multiverse and impact of the idea of the multiverse on the search for new physics beyond the Standard Model.

  19. Prospects for Future Collider Physics

    CERN Document Server

    Ellis, John

    2016-01-01

    One item on the agenda of future colliders is certain to be the Higgs boson. What is it trying to tell us? The primary objective of any future collider must surely be to identify physics beyond the Standard Model, and supersymmetry is one of the most studied options. it Is supersymmetry waiting for us and, if so, can LHC Run 2 find it? The big surprise from the initial 13-TeV LHC data has been the appearance of a possible signal for a new boson X with a mass ~750 GeV. What are the prospects for future colliders if the X(750) exists? One of the most intriguing possibilities in electroweak physics would be the discovery of non-perturbative phenomena. What are the prospects for observing sphalerons at the LHC or a future collider?

  20. Ultraviolet extensions of particle physics

    DEFF Research Database (Denmark)

    Berthier, Laure Gaëlle

    The discovery of the Higgs boson in 2012 at the Large Hadron Collider completed the Standard Model field content. Many questions though remain unanswered by the Standard Model triggering a search for new physics. New physics could manifest itself at the Large Hadron Collider by the discovery of new...... particles. However, the lack of new resonances might suggest that these new particles are still out of reach which leaves us with few options. Two possibilities are explored in this thesis. The first is to study precision measurements which might indicate new physics as small deviations from the Standard...... are expressed as power series with missing higher order terms. We also show how to connect ultraviolet models of new physics to the Standard Model effective field theory and calculate bounds on them using the Standard Model effective field theory fit results. Finally, we study a nonrelativistic ultraviolet...

  1. Research in theoretical particle physics

    Energy Technology Data Exchange (ETDEWEB)

    McKay, D.W.; Munczek, H.; Ralston, J.

    1992-05-01

    This report discusses the following topics in high energy physics: dynamical symmetry breaking and Schwinger-Dyson equation; consistency bound on the minimal model Higgs mass; tests of physics beyond the standard model; particle astrophysics; the interface between perturbative and non-perturbative QCD; cosmology; anisotropy in quantum networks and integer quantum hall behavior; anomalous color transparency; quantum treatment of solitons; color transparency; quantum stabilization of skyrmions; and casimir effect. (LSP)

  2. Dissipative dynamics in particle physics

    CERN Document Server

    Romano, R

    2003-01-01

    The subject of this thesis is the study of dissipative dynamics and their properties in particle physics, dealing with neutral B-mesons, neutron interferometry and neutrino physics. Modified expressions for the relevant phenomenological quantities characterizing these systems are obtained. Moreover, the models presented in this work offer the possibility of direct tests of some basic properties of reduced dynamics (in particular the notion of complete positivity) since they represent concrete systems amenable to actual experiments.

  3. Open statistical issues in particle physics

    OpenAIRE

    Lyons, Louis

    2008-01-01

    Many statistical issues arise in the analysis of Particle Physics experiments. We give a brief introduction to Particle Physics, before describing the techniques used by Particle Physicists for dealing with statistical problems, and also some of the open statistical questions.

  4. Particle physics using nuclear targets

    Energy Technology Data Exchange (ETDEWEB)

    Ferbel, T.

    1978-01-01

    The use of nuclear targets in particle physics is discussed and some recent results obtained in studies of hadronic interactions on nuclei summarized. In particular experimental findings on inclusive production and on coherent dissociation of mesons and baryons at high energies are presented. 41 references.

  5. Introduction to Elementary Particle Physics

    Science.gov (United States)

    Salinas, C. J. Solano; Hurtado, K.; Romero, C.

    2009-04-01

    This is a short review of Particle Physics and the most widely accepted theory, the Standard Model, with its questions and limitations. We also show a quick review of some of te theories beyonf the Standard Model. It is based in the introductory talk given the Third School on Cosmic Rays and Astrophysics held in Arequipa, Peru.

  6. Summer School on Particle Physics

    CERN Document Server

    2017-01-01

    The goal of the school is to give a detailed overview of particle physics from the basics of Standard Model phenomenology to the most important areas where significant progress has been achieved recently. This year the school will cover both the energy and the intensity frontiers, including lectures on experimental techniques for small scale experiments and on formal developments in quantum field theory.

  7. Particle physics using nuclear targets

    Energy Technology Data Exchange (ETDEWEB)

    Ferbel, T.

    1978-01-01

    The use of nuclear targets in particle physics is discussed and some recent results obtained in studies of hadronic interactions on nuclei summarized. In particular experimental findings on inclusive production and on coherent dissociation of mesons and baryons at high energies are presented. 41 references.

  8. Modern Particle Physics Event Generation with WHIZARD

    CERN Document Server

    Reuter, J; Nejad, B Chokoufe; Kilian, W; Ohl, T; Sekulla, M; Weiss, C

    2014-01-01

    We describe the multi-purpose Monte-Carlo event generator WHIZARD for the simulation of high-energy particle physics experiments. Besides the presentation of the general features of the program like SM physics, BSM physics, and QCD effects, special emphasis will be given to the support of the most accurate simulation of the collider environments at hadron colliders and especially at future linear lepton colliders. On the more technical side, the very recent code refactoring towards a completely object-oriented software package to improve maintainability, flexibility and code development will be discussed. Finally, we present ongoing work and future plans regarding higher-order corrections, more general model support including the setup to search for new physics in vector boson scattering at the LHC, as well as several lines of performance improvements.

  9. Modern particle physics event generation with WHIZARD

    Energy Technology Data Exchange (ETDEWEB)

    Reuter, J.; Bach, F.; Chokoufe, B. [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Theory Group; Kilian, W.; Sekulla, M. [Siegen Univ. (Germany). Dept. of Physics; Ohl, T. [Wuerzburg Univ. (Germany). Dept. of Physics and Astronomy; Weiss, C. [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany). Theory Group; Siegen Univ. (Germany). Dept. of Physics

    2014-10-16

    We describe the multi-purpose Monte-Carlo event generator WHIZARD for the simulation of high-energy particle physics experiments. Besides the presentation of the general features of the program like SM physics, BSM physics, and QCD effects, special emphasis is given to the support of the most accurate simulation of the collider environments at hadron colliders and especially at future linear lepton colliders. On the more technical side, the very recent code refactoring towards a completely object-oriented software package to improve maintainability, flexibility and code development are discussed. Finally, we present ongoing work and future plans regarding higher-order corrections, more general model support including the setup to search for new physics in vector boson scattering at the LHC, as well as several lines of performance improvements.

  10. A research Program in Elementary Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Sobel, Henry; Molzon, William; Lankford, Andrew; Taffard, Anyes; Whiteson, Daniel; Kirkby, David

    2013-07-25

    Work is reported in: Neutrino Physics, Cosmic Rays and Elementary Particles; Particle Physics and Charged Lepton Flavor Violation; Research in Collider Physics; Dark Energy Studies with BOSS and LSST.

  11. SAM and the Particle Physics Data Grid

    Institute of Scientific and Technical Information of China (English)

    LauriLoebel-Carpenter; LeeLueking; 等

    2001-01-01

    The D0 experiment's data and job management system software,SAM,is an operational prototype of many of the concepts being developed for Grid computing .We explain how the components of SAM map into the Data Grid architecture,We discuss the future use of Grid components to either replace existing components of SAM or to extend its functionality and utility.owrk being carried out as part of the Particle Physics Data Grid(PPDG) project.

  12. The future of neutrino physics

    CERN Multimedia

    2009-01-01

    On 1-3 October, CERN held the first workshop to discuss the strategy that Europe should follow in the field of neutrino physics. Many members of the neutrino physics community from all over the world participated in the workshop, demonstrating the vitality and interest of this research field. The European Strategy for Future Neutrino Physics workshop is the second of a series of workshops organized by CERN to coordinate efforts and define strategies for the future of physics research in Europe. The first workshop was organized in May; it outlined the best projects that have excellent scientific goals and for which CERN’s facilities are unique. Currently, these projects are being discussed within the community and in the CERN scientific committees. The same bottom-up approach was taken for the organisation of this second workshop that focussed on neutrino physics. More than 250 people participated and 44 posters were presented in a separate session. Unlike in the first workshop, the focus was not on specif...

  13. Future Directions in Medical Physics

    Science.gov (United States)

    Jeraj, Robert

    Medical Physics is a highly interdisciplinary field at the intersection between physics and medicine and biology. Medical Physics is aiming at development of novel applications of physical processes and techniques in various areas of medicine and biology. Medical Physics had and continues to have profound impact by developing improved imaging and treatment technologies, and helping to advance our understanding of the complexity of the disease. The general trend in medicine towards personalized therapy, and emphasis on accelerated translational research is having a profound impact on medical physics as well. In the traditional stronghold for medical physicists - radiation therapy - the new reality is shaping in the form of biologically conformal and combination therapies, as well as advanced particle therapy approaches, such as proton and ion therapies. Rapid increase in faster and more informative multi-modality medical imaging is bringing a wealth of information that is being complemented with data obtained from genomic profiling and other biomarkers. Novel data analysis and data mining approaches are proving grounds for employment of various artificial intelligence methods that will help further improving clinical decision making for optimization of various therapies as well as better understanding of the disease properties and disease evolution, ultimately leading to improved clinical outcomes.

  14. Non-accelerator particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Steinberg, R.I.

    1990-01-01

    The goals of this research are the experimental testing of fundamental theories of physics such as grand unification and the exploration of cosmic phenomena through the techniques of particle physics. We are currently engaged in construction of the MACRO detector, an Italian-American collaborative research instrument with a total particle acceptance of 10,000 m{sup 2}sr, which will perform a sensitive search for magnetic monopoles using excitation-ionization methods. Other major objective of the MACRO experiment are to search for astrophysical high energy neutrinos expected to be emitted by such objects as Vela X-1, LMC X-4 and SN-1987A and to search for low energy neutrino bursts from gravitational stellar collapse. We are also working on BOREX, a liquid scintillation solar neutrino experiment and GRANDE, a proposed very large area surface detector for astrophysical neutrinos, and on the development of new techniques for liquid scintillation detection.

  15. Cosmic rays and particle physics

    CERN Document Server

    Gaisser, Thomas K; Resconi, Elisa

    2016-01-01

    Fully updated for the second edition, this book introduces the growing and dynamic field of particle astrophysics. It provides an overview of high-energy nuclei, photons and neutrinos, including their origins, their propagation in the cosmos, their detection on Earth and their relation to each other. Coverage is expanded to include new content on high energy physics, the propagation of protons and nuclei in cosmic background radiation, neutrino astronomy, high-energy and ultra-high-energy cosmic rays, sources and acceleration mechanisms, and atmospheric muons and neutrinos. Readers are able to master the fundamentals of particle astrophysics within the context of the most recent developments in the field. This book will benefit graduate students and established researchers alike, equipping them with the knowledge and tools needed to design and interpret their own experiments and, ultimately, to address a number of questions concerning the nature and origins of cosmic particles that have arisen in recent resea...

  16. Nuclear physics with polarized particles

    Energy Technology Data Exchange (ETDEWEB)

    Paetz gen. Schieck, Hans [Koeln Univ. (Germany). Inst. fuer Kernphysik

    2012-07-01

    The measurement of spin-polarization observables in reactions of nuclei and particles is of great utility and advantage when the effects of single-spin sub-states are to be investigated. Indeed, the unpolarized differential cross-section encompasses the averaging over the spin states of the particles, and thus loses details of the interaction process. This introductory text combines, in a single volume, course-based lecture notes on spin physics and on polarized-ion sources with the aim of providing a concise yet self-contained starting point for newcomers to the field, as well as for lecturers in search of suitable material for their courses and seminars. A significant part of the book is devoted to introducing the formal theory - a description of polarization and of nuclear reactions with polarized particles. The remainder of the text describes the physical basis of methods and devices necessary to perform experiments with polarized particles and to measure polarization and polarization effects in nuclear reactions. The book concludes with a brief review of modern applications in medicine and fusion energy research. For reasons of conciseness and of the pedagogical aims of this volume, examples are mainly taken from low-energy installations such as tandem Van de Graaff laboratories, although the emphasis of present research is shifting to medium- and high-energy nuclear physics. Consequently, this volume is restricted to describing non-relativistic processes and focuses on the energy range from astrophysical energies (a few keV) to tens of MeV. It is further restricted to polarimetry of hadronic particles. (orig.)

  17. Top Quark Physics: Future Measurements

    Energy Technology Data Exchange (ETDEWEB)

    Jaros, John A

    2003-05-09

    We discuss the study of the top quark at future experiments and machines. Top's large mass makes it a unique probe of physics at the natural electroweak scale. We emphasize measurements of the top quark's mass, width, and couplings, as well as searches for rare or nonstandard decays, and discuss the complementary roles played by hadron and lepton colliders.

  18. Supersymmetry in Elementary Particle Physics

    OpenAIRE

    Peskin, Michael E.

    2008-01-01

    These lectures, presented at the 2006 TASI summer school, give a general introduction to supersymmetry, emphasizing its application to models of elementary particle physics at the 100 GeV energy scale. I discuss the following topics: the construction of supersymmetric Lagrangians with scalars, fermions, and gauge bosons, the structure and mass spectrum of the Minimal Supersymmetric Standard Model (MSSM), the measurement of the parameters of the MSSM at high-energy colliders, and the solutions...

  19. Supersymmetry in Elementary Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Peskin, Michael E.; /SLAC

    2008-02-05

    These lectures give a general introduction to supersymmetry, emphasizing its application to models of elementary particle physics at the 100 GeV energy scale. I discuss the following topics: the construction of supersymmetric Lagrangians with scalars, fermions, and gauge bosons, the structure and mass spectrum of the Minimal Supersymmetric Standard Model (MSSM), the measurement of the parameters of the MSSM at high-energy colliders, and the solutions that the MSSM gives to the problems of electroweak symmetry breaking and dark matter.

  20. Experimental techniques in nuclear and particle physics

    CERN Document Server

    Tavernier, Stefaan

    2009-01-01

    The book is based on a course in nuclear and particle physics that the author has taught over many years to physics students, students in nuclear engineering and students in biomedical engineering. It provides the basic understanding that any student or researcher using such instruments and techniques should have about the subject. After an introduction to the structure of matter at the subatomic scale, it covers the experimental aspects of nuclear and particle physics. Ideally complementing a theoretically-oriented textbook on nuclear physics and/or particle physics, it introduces the reader to the different techniques used in nuclear and particle physics to accelerate particles and to measurement techniques (detectors) in nuclear and particle physics. The main subjects treated are: interactions of subatomic particles in matter; particle accelerators; basics of different types of detectors; and nuclear electronics. The book will be of interest to undergraduates, graduates and researchers in both particle and...

  1. Elementary particle physics and the superconducting super collider.

    Science.gov (United States)

    Quigg, C; Schwitters, R F

    1986-03-28

    The present status and future prospects of elementary particle physics are reviewed, and some of the scientific questions that motivate the construction of a major new accelerator complex in the United States are summarized.

  2. Fundamentals of Cosmological Particle Physics

    CERN Document Server

    Khlopov, Maxim Yu

    2012-01-01

    This current updated and expanded (this is an up-dated English translation of Prof. Khlopov's book "Osnovy kosmomikrofiziki", URSS, 2004) text reflects the large number of scientific advances, both theoretical and experimental, within the discipline of cosmic particle physics in the last 10 years. Some of the topics that have been added or updated include but are not limited to: HND or CMD+HND scenarios being implemented into sterile neutrino scenarios, the ramifications of extending the forms of dark matter with respect to our view of neutrinos, the origin of baryon matter and the need for nonbaryonic matter in current theories, problems the existence of dark matter raises with respect to cosmic particle physics and the relationship with (meta) stable (super) weakly interacting particles predicted by the extension of the standard model, restrictions on baryon and lepton photons, as well as problems associated with expansion, just to name a few. These and many other topics are readdressed in light of recent b...

  3. Constraining fundamental physics with future CMB experiments

    Science.gov (United States)

    Galli, Silvia; Martinelli, Matteo; Melchiorri, Alessandro; Pagano, Luca; Sherwin, Blake D.; Spergel, David N.

    2010-12-01

    The Planck experiment will soon provide a very accurate measurement of cosmic microwave background anisotropies. This will let cosmologists determine most of the cosmological parameters with unprecedented accuracy. Future experiments will improve and complement the Planck data with better angular resolution and better polarization sensitivity. This unexplored region of the CMB power spectrum contains information on many parameters of interest, including neutrino mass, the number of relativistic particles at recombination, the primordial helium abundance, and the injection of additional ionizing photons by dark matter self-annihilation. We review the imprint of each parameter on the CMB and forecast the constraints achievable by future experiments by performing a Monte Carlo analysis on synthetic realizations of simulated data. We find that next generation satellite missions such as CMBPol could provide valuable constraints with a precision close to that expected in current and near future laboratory experiments. Finally, we discuss the implications of this intersection between cosmology and fundamental physics.

  4. Geneva University - Particle Physics seminar

    CERN Multimedia

    Université de Genève

    2011-01-01

    UNIVERSITE DE GENEVE Ecole de physique Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 Geneva 4 Tel. (022) 379 62 73 Fax (022) 379 69 92 Wednesday 8 June 2011 PARTICLE PHYSICS SEMINAR at 17.00 hrs – Stückelberg Auditorium A Novel Experiment for the Search muon -> eee Prof. Andre Schoening, University of Heidelberg The absence of lepton-flavor changing processes, like the non-observation of the radiative decay mu -> e gamma, has been a miracle since the dawn of the Standard Model of Particle Physics and lead to the introduction of the concept of lepton family numbers. Several experiments in the last decade have shown clear evidence for neutrino oscillations. The neutrino mixing angles measured are known to be large. However, the discovery of lepton flavor violating (LFV) effects in the charged lepton sector is yet owing. After motivating the search for LFV in general I will discuss the physics potential of a search m...

  5. Beam physics in future electron hadron colliders

    CERN Document Server

    Valloni, A; Klein, M; Schulte, D; Zimmermann, F

    2013-01-01

    High-energy electron-hadron collisions could support a rich research programme in particle and nuclear physics. Several future projects are being proposed around the world, in particular eRHIC at BNL, MEIC at TJNAF in the US, and LHeC at CERN in Europe. This paper will highlight some of the accelerator physics issues, and describe related technical developments and challenges for these machines. In particular, optics design and beam dynamics studies are discussed, including longitudinal phase space manipulation, coherent synchrotron radiation, beam-beam kink instability, ion effects, as well as mitigation measures for beam break up and for space-charge induced emittance growth, all of which could limit the machine performance. Finally, first steps are presented towards an LHeC R&D facility, which should investigate relevant beam-physics processes.

  6. Fundamental physics in particle traps

    CERN Document Server

    Vogel, Manuel

    2014-01-01

    This volume provides detailed insight into the field of precision spectroscopy and fundamental physics with particles confined in traps. It comprises experiments with electrons and positrons, protons and antiprotons, antimatter and highly charged ions, together with corresponding theoretical background. Such investigations represent stringent tests of quantum electrodynamics and the Standard model, antiparticle and antimatter research, test of fundamental symmetries, constants, and their possible variations with time and space. They are key to various aspects within metrology such as mass measurements and time standards, as well as promising to further developments in quantum information processing. The reader obtains a valuable source of information suited for beginners and experts with an interest in fundamental studies using particle traps.

  7. Non-accelerator particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Steinberg, R.I.; Lane, C.E.

    1991-09-01

    The goals of this research are the experimental testing of fundamental theories of physics such as grand unification and the exploration of cosmic phenomena through the techniques of particle physics. We are working on the MACRO experiment, which employs a large area underground detector to search for grand unification magnetic monopoles and dark matter candidates and to study cosmic ray muons as well as low and high energy neutrinos: the {nu}IMB project, which seeks to refurbish and upgrade the IMB water Cerenkov detector to perform an improved proton decay search together with a long baseline reactor neutrino oscillation experiment using a kiloton liquid scintillator (the Perry experiment); and development of technology for improved liquid scintillators and for very low background materials in support of the MACRO and Perry experiments and for new solar neutrino experiments. 21 refs., 19 figs., 6 tabs.

  8. Non-accelerator particle physics

    Science.gov (United States)

    Steinberg, R. I.; Lane, C. E.

    1991-09-01

    The goals of this research are the experimental testing of fundamental theories of physics such as grand unification and the exploration of cosmic phenomena through the techniques of particle physics. We are working on the MACRO experiment, which employs a large area underground detector, to search for grand unification magnetic monopoles and dark matter candidates and to study cosmic ray muons as well as low and high energy neutrinos. The NuIMB project seeks to: refurbish and upgrade the IMB water Cerenkov detector to perform an improved proton decay search together with a long baseline reactor neutrino oscillation experiment using a kiloton liquid scintillator (the Perry experiment); and to develop technology for improved liquid scintillators, very low background materials in support of the MACRO and Perry experiments, and for new solar neutrino experiments.

  9. Non-accelerator particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Steinberg, R.I.; Lane, C.E.

    1991-08-01

    The goals of this research were the experimental testing of fundamental theories of physics such as grand unification and the exploration of cosmic phenomena through the techniques of particle physics. We have worked on the MACRO experiment, which is employing a large area underground detector to search for grand unification magnetic monopoles and dark matter candidates and to study cosmic ray muons as well as low and high energy neutrinos; the {nu}IMB project, which seeks to refurbish and upgrade the IMB water Cerenkov detector to perform an improved proton decay search together with a long baseline reactor neutrino oscillation experiments using a one kiloton liquid scintillator (the Perry experiment); and development of technology for improved liquid scintillators and for very low background materials in support of the MACRO and Perry experiments and for new solar neutrino experiments.

  10. Teaching Physics to Future Presidents

    Science.gov (United States)

    Jacobsen, Bob

    2015-03-01

    We present Berkeley's ``Physics for Future Presidents'' course. Created by Prof. Richard Muller, this is an introductory course aimed at preparing our students to make decisions in a physical, technological world. Organized around large topical areas like ``Energy,'' ``Gravity and Force,'' ``Nuclei and Radioactivity,'' and ``Invisible Light,'' we can cover in some depth the scientific issues involved in large-scale energy production via renewable and non-renewable resources, satellites including capabilities and limitations, nuclear power production including risk and waste, UV exposure including discussion of the ozone layer and cancer risk, etc. Although only a small bit of algebra is used, it's a deeply quantitative course. The class is structured around (1) traditional text readings and homework for basic material (2) demo- and discussion-based lectures and (3) readings and essays based on current articles and events. This third component raises student engagement and improves their reasoning & skeptical skills. It also makes the course challenging for both STEM and non-STEM students, and for future teachers.

  11. Computer tools in particle physics

    CERN Document Server

    Vicente, Avelino

    2015-01-01

    The field of particle physics is living very exciting times with a plethora of experiments looking for new physics in complementary ways. This has made increasingly necessary to obtain precise predictions in new physics models in order to be ready for a discovery that might be just around the corner. However, analyzing new models and studying their phenomenology can be really challenging. Computing mass matrices, interaction vertices and decay rates is already a tremendous task. In addition, obtaining predictions for the dark matter relic density and its detection prospects, computing flavor observables or estimating the LHC reach in certain collider signals constitutes quite a technical work due to the precision level that is currently required. For this reason, computer tools such as SARAH, MicrOmegas, MadGraph, SPheno or FlavorKit have become quite popular, and many physicists use them on a daily basis. In this course we will learn how to use these computer tools to explore new physics models and get robus...

  12. Charting the Course for Elementary Particle Physics

    Science.gov (United States)

    Richter, B.

    2007-02-16

    "It was the best of times; it was the worst of times" is the way Dickens begins the Tale of Two Cities. The line is appropriate to our time in particle physics. It is the best of times because we are in the midst of a revolution in understanding, the third to occur during my career. It is the worst of times because accelerator facilities are shutting down before new ones are opening, restricting the opportunity for experiments, and because of great uncertainty about future funding. My task today is to give you a view of the most important opportunities for our field under a scenario that is constrained by a tight budget. It is a time when we cannot afford the merely good, but must give first priority to the really important. The defining theme of particle physics is to learn what the universe is made of and how it all works. This definition spans the full range of size from the largest things to the smallest things. This particle physics revolution has its origins in experiments that look at both.

  13. Cosmic Rays and Particle Physics

    Science.gov (United States)

    Gaisser, Thomas K.; Engel, Ralph; Resconi, Elisa

    2016-06-01

    Preface to the first edition; Preface to the second edition; 1. Cosmic rays; 2. Cosmic ray data; 3. Particle physics; 4. Hadronic interactions and accelerator data; 5. Cascade equations; 6. Atmospheric muons and neutrinos; 7. Neutrino masses and oscillations; 8. Muons and neutrinos underground; 9. Cosmic rays in the Galaxy; 10. Extragalactic propagation of cosmic rays; 11. Astrophysical - rays and neutrinos; 12. Acceleration; 13. Supernovae in the Milky Way; 14. Astrophysical accelerators and beam dumps; 15. Electromagnetic cascades; 16. Extensive air showers; 17. Very high energy cosmic rays; 18. Neutrino astronomy; A.1. Units, constants and definitions; A.2. References to flux measurements; A.3. Particle flux, density, and interaction cross section; A.4. Fundamentals of scattering theory; A.5. Regge amplitude; A.6. Glauber model of nuclear cross sections; A.7. Earth's atmosphere; A.8. Longitudinal development of air showers; A.9. Secondary positrons and electrons; A.10. Liouville's theorem and cosmic ray propagation; A.11. Cosmology and distances measures; A.12. The Hillas splitting algorithm; References; Index.

  14. The dialogue between particle physics and cosmology

    Energy Technology Data Exchange (ETDEWEB)

    Sadoulet, B.

    1988-04-01

    In the last decade, a very close relationship has developed between particle physics and cosmology. The purpose of these lectures is to introduce particle physicists to the many scientific connections between the two fields. Before entering into the discussion of specific topics, it will first be shown that particle physics and cosmology are completely interdependent. 173 refs., 35 figs., 5 tabs.

  15. Current experiments in particle physics, 1996

    CERN Document Server

    Lawrence Berkeley Nat. Laboratory. Berkeley; Lehár, F; Klioukhine, V I; Ryabov, Yu; Bilak, S V; Illarionova, N S; Khachaturov, B A; Strokovsky, E A; Hoffman, C M; Kettle, P R; Olin, A; Armstrong, F E

    1996-01-01

    Contains more than 1,800 experiments in elementary particle physics from the Experience database. Search and browse by author; title; experiment number or prefix; institution; date approved, started or completed; accelerator or detector; polarization, reaction, final state or particle; or by papers produced. Maintained at SLAC for the Particle Data Group. Supplies the information for Current Experiments in Particle Physics (LBL-91). Print version updated every second year.

  16. Current experiments in elementary particle physics, 1989

    CERN Document Server

    Lawrence Berkeley Nat. Laboratory. Berkeley; Armstrong, F E; Trippe, T G; Yost, G P; Oyanagi, Y; Dodder, D C; Ryabov, Yu G; Slabospitsky, S R; Frosch, R; Olin, A; Lehar, F; Klumov, I A; Ivanov, I I

    1989-01-01

    Contains more than 1,800 experiments in elementary particle physics from the Experience database. Search and browse by author; title; experiment number or prefix; institution; date approved, started or completed; accelerator or detector; polarization, reaction, final state or particle; or by papers produced. Maintained at SLAC for the Particle Data Group. Supplies the information for Current Experiments in Particle Physics (LBL-91). Print version updated every second year.

  17. Modern String Theory and Particle Physics

    OpenAIRE

    Cvetic, M.

    2015-01-01

    String theory, as the prime candidate for quantum unification of particle physics and gravity, sheds light on important fundamental questions such as the microscopic structure of black holes and the geometric origin of particle physics. We review these developments such as the introduction of extended objects - Dirichlet branes - and highlight the important geometric role of these objects in deriving particle physics from string theory. We also highlight recent progress made in deriving partic...

  18. Multi-physics/scale simulations using particles

    Science.gov (United States)

    Koumoutsakos, Petros

    2006-03-01

    Particle simulations of continuum and discrete phenomena can be formulated by following the motion of interacting particles that carry the physical properties of the systems that is being approximated (continuum) or modeled (discrete) by the particles. We identify the common computational characteristics of particle methods and emphasize their key properties that enable the formulation of a novel, systematic framework for multiscale simulations, that can be applicable to the simulation of diverse physical problems. We present novel multiresolution particle methods for continuum (fluid/solid) simulations, using adaptive mesh refinement and wavelets, by relaxing the grid-free character of particle methods and discuss the coupling of scales in continuum-atomistic flow simulations.

  19. Experiences in automatic keywording of particle physics literature

    CERN Document Server

    Montejo Ráez, Arturo

    2001-01-01

    Attributing keywords can assist in the classification and retrieval of documents in the particle physics literature. As information services face a future with less available manpower and more and more documents being written, the possibility of keyword attribution being assisted by automatic classification software is explored. A project being carried out at CERN (the European Laboratory for Particle Physics) for the development and integration of automatic keywording is described.

  20. Pop-up particle physics

    CERN Multimedia

    CERN Bulletin

    2010-01-01

    You may remember noticing a pop-up Big Bang on your way to Restaurant No. 1 last November, as part of the Library’s book fair. This was just one page from a rather original project to make a pop-up book about particle physics. The book – Voyage to the Heart of Matter, the ATLAS experiment at CERN - will be launched in the USA and Canada, in a new silver edition.   The book proved a popular Christmas gift in the UK when it was released last November - copies on sale there sold out in under two months. The new print run will go on sale in Australia and the UK, in addition to Canada and the US. It will be launched to the press during the week of the New York book fair and will befollowed by a public event at the New York Academy of Sciences on 25 May. You can purchase a copy at the ATLAS secretariat, the Library or the Building 33 shop for 30CHF. For more information about the launch event, see http://www.nyas.org/ATLAS.

  1. Studies in theoretical particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Kaplan, D.B.

    1991-07-01

    This proposal focuses on research on three distinct areas of particle physics: (1) Nonperturbative QCD. I tend to continue work on analytic modelling of nonperturbative effects in the strong interactions. I have been investigating the theoretical connection between the nonrelativistic quark model and QCD. The primary motivation has been to understand the experimental observation of nonzero matrix elements involving current strange quarks in ordinary matter -- which in the quark model has no strange quark component. This has led to my present work on understanding constituent (quark model) quarks as collective excitations of QCD degrees of freedom. (2) Weak Scale Baryogenesis. A continuation of work on baryogenesis in the early universe from weak interactions. In particular, an investigation of baryogenesis occurring during the weak phase transition through anomalous baryon violating processes in the standard model of weak interactions. (3) Flavor and Compositeness. Further investigation of a new mechanism that I recently discovered for dynamical mass generation for fermions, which naturally leads to a family hierarchy structure. A discussion of recent past work is found in the next section, followed by an outline of the proposed research. A recent publication from each of these three areas is attached to this proposal.

  2. The Birth of Elementary-Particle Physics.

    Science.gov (United States)

    Brown, Laurie M.; Hoddeson, Lillian

    1982-01-01

    Traces the origin and development of particle physics, concentrating on the roles of cosmic rays and theory. Includes charts highlighting significant events in the development of cosmic-ray physics and quantum field theory. (SK)

  3. Physics through the 1990s: Elementary-particle physics

    Science.gov (United States)

    The volume begins with a non-mathematical discussion of the motivation behind, and basic ideas of, elementary-particle physics theory and experiment. The progress over the past two decades with the quark model and unification of the electromagnetic and weak interactions is reviewed. Existing theoretical problems in the field, such as the origin of mass and the unification of the fundamental forces, are detailed, along with experimental programs to test the new theories. Accelerators, instrumentation, and detectors are described for both current and future facilities. Interactions with other areas of both theoretical and applied physics are presented. The sociology of the field is examined regarding the education of graduate students, the organization necessary in large-scale experiments, and the decision-making process involved in high-cost experiments. Finally, conclusions and recommendations for maintaining US excellence in theory and experiment are given. Appendices list both current and planned accelerators, and present statistical data on the US elementary-particle physics program. A glossary is included.

  4. Physics through the 1990s: Elementary-particle physics

    Science.gov (United States)

    1986-01-01

    The volume begins with a non-mathematical discussion of the motivation behind, and basic ideas of, elementary-particle physics theory and experiment. The progress over the past two decades with the quark model and unification of the electromagnetic and weak interactions is reviewed. Existing theoretical problems in the field, such as the origin of mass and the unification of the fundamental forces, are detailed, along with experimental programs to test the new theories. Accelerators, instrumentation, and detectors are described for both current and future facilities. Interactions with other areas of both theoretical and applied physics are presented. The sociology of the field is examined regarding the education of graduate students, the organization necessary in large-scale experiments, and the decision-making process involved in high-cost experiments. Finally, conclusions and recommendations for maintaining US excellence in theory and experiment are given. Appendices list both current and planned accelerators, and present statistical data on the US elementary-particle physics program. A glossary is included.

  5. Future Directions in Solar Physics

    Science.gov (United States)

    Rabin, Douglas

    2010-01-01

    I will discuss scientific opportunities for space-based solar physics instruments in the coming decade and their synergy with major new ground-based telescopes. l will also discuss ( pow small satellites may complement larger solar physics missions.

  6. J. J. Sakurai Prize for Theoretical Particle Physics Lecture: Particle physics after the first LHC results

    Science.gov (United States)

    Altarelli, Guido

    2012-03-01

    The LHC results released so far have very much restricted the possible range for the Standard Model Higgs boson mass. Moreover some indications for a signal at a mass around 125 GeV have been found. At the same time, no clear evidence for new physics has emerged from the LHC data. We discuss the impact of these results on our understanding of particle physics. The presently allowed window for the Higgs mass and the negative results for exotic particles are compatible with both the Standard model and its Supersymmetric extensions but imply considerable restrictions and need a substantial amount of fine tuning in all cases. We discuss the options that remain open and the perspectives for the near future.

  7. Integrated circuits for particle physics experiments

    CERN Document Server

    Snoeys, W; Campbell, M; Cantatore, E; Faccio, F; Heijne, Erik H M; Jarron, Pierre; Kloukinas, Kostas C; Marchioro, A; Moreira, P; Toifl, Thomas H; Wyllie, Ken H

    2000-01-01

    High energy particle physics experiments investigate the nature of matter through the identification of subatomic particles produced in collisions of protons, electrons, or heavy ions which have been accelerated to very high energies. Future experiments will have hundreds of millions of detector channels to observe the interaction region where collisions take place at a 40 MHz rate. This paper gives an overview of the electronics requirements for such experiments and explains how data reduction, timing distribution, and radiation tolerance in commercial CMOS circuits are achieved for these big systems. As a detailed example, the electronics for the innermost layers of the future tracking detector, the pixel vertex detector, is discussed with special attention to system aspects. A small-scale prototype (130 channels) implemented in standard 0.25 mu m CMOS remains fully functional after a 30 Mrad(SiO/sub 2/) irradiation. A full-scale pixel readout chip containing 8000 readout channels in a 14 by 16 mm/sup 2/ ar...

  8. Quarked!--Adventures in Particle Physics Education

    Science.gov (United States)

    MacDonald, Teresa; Bean, Alice

    2009-01-01

    Particle physics is a subject that can send shivers down the spines of students and educators alike--with visions of long mathematical equations and inscrutable ideas. This perception, along with a full curriculum, often leaves this topic the road less traveled until the latter years of school. Particle physics, including quarks, is typically not…

  9. Education and Outreach in Particle Physics

    CERN Document Server

    Barnett, R Michael

    2011-01-01

    There are many varied programs of education and outreach in particle physics. This report for the Division of Particles and Fields of the American Physical Society 2001 meeting reviews the impact of these programs in general, and also gives several examples of ongoing programs with a primary focus on those in the US.

  10. Particle Physics: From School to University.

    Science.gov (United States)

    Barlow, Roger

    1992-01-01

    Discusses the teaching of particle physics as part of the A-level physics course in British secondary schools. Utilizes the quark model of hadrons and the conceptual kinematics of particle collisions, as examples, to demonstrate practical instructional possibilities in relation to student expectations. (JJK)

  11. Quarked!--Adventures in Particle Physics Education

    Science.gov (United States)

    MacDonald, Teresa; Bean, Alice

    2009-01-01

    Particle physics is a subject that can send shivers down the spines of students and educators alike--with visions of long mathematical equations and inscrutable ideas. This perception, along with a full curriculum, often leaves this topic the road less traveled until the latter years of school. Particle physics, including quarks, is typically not…

  12. Teaching Elementary Particle Physics: Part I

    Science.gov (United States)

    Hobson, Art

    2011-01-01

    I'll outline suggestions for teaching elementary particle physics, often called "high energy physics," in high school or introductory college courses for non-scientists or scientists. Some presentations of this topic simply list the various particles along with their properties, with little overarching structure. Such a laundry list approach is a…

  13. Geneva University - Next Particle Physics Seminars

    CERN Multimedia

    Université de Genève

    2010-01-01

    GENEVA UNIVERSITY École de physique Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENEVA 4 Tel. (022) 379 62 73 Fax (022) 379 69 92 Wednesday 17 November 2010 PARTICLE PHYSICS SEMINAR at 17-00 hrs – Stückelberg Auditorium Results on CP-Violation in The B_s and B_d systems at the Tevatron Dr. Iain Bertram, Lancaster Results will be presented from the investigation of CP-violation in B mesons at the Tevatron. The evidence for an anomalous likes-sign dimuon charge asymmetry will be presented, along with the latest results on CP violation in the Bs -> J/Psi Phi system. The implications of these results and the possibility of confirming them in the future will also be discussed. Information : http://dpnc.unige.ch/seminaire/annonce.html Organizer : G. Pasztor Wednesday 1st December 2010 PARTICLE PHYSICS SEMINAR at 17-00 hrs – Stückelberg Auditorium PAMELA - A COSMIC RAY OBSERVATO...

  14. From particle physics to medical applications

    CERN Document Server

    Dosanjh, Manjit

    2017-01-01

    CERN is the world's largest particle physics research laboratory. Since it was established in 1954, it has made an outstanding contribution to our understanding of the fundamental particles and their interactions, and also to the technologies needed to analyse their properties and behaviour. The experimental challenges have pushed the performance of particle accelerators and detectors to the limits of our technical capabilities, and these groundbreaking technologies can also have a significant impact in applications beyond particle physics. In particular, the detectors developed for particle physics have led to improved techniques for medical imaging, while accelerator technologies lie at the heart of the irradiation methods that are widely used for treating cancer. Indeed, many important diagnostic and therapeutic techniques used by healthcare professionals are based either on basic physics principles or the technologies developed to carry out physics research. Ever since the discovery of x-rays by Roentgen...

  15. Some ethical questions in particle physics

    OpenAIRE

    2016-01-01

    Authors will discuss a few ethical questions in today's particle physics: high costs and purported dangers of Big Science projects, relevance of fundamental research for society and the way particle physicists fill their duty to communicate with the public. Examples will be given including the story of a possible mini-black hole creation at CERN and two outreach activities for high school students, International Particle Physics Masterclasses and Cascade competition.

  16. Energy related applications of elementary particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Rafelski, J.

    1991-08-31

    The current research position is summarized, and what could be done in the future to clarify issues which were opened up by the research is indicated. Following on the discussion of the viability of catalyzed fusion, there is presented along with the key experimental results, a short account of the physics surrounding the subject. This is followed by a discussion of key research topics addressed. In consequence of the progress made, it appears that the feasibility of a small-scale fusion based on catalyzed reactions rests on either the remote chance that a yet undiscovered ultraheavy negatively charged elementary particle exists in Nature, or on the possible technical realization of a system based on muon-catalyzed fusion (MuCF) in high-density degenerate hydrogen plasma (density 1000 LHD, temperature O(100 eV)). The lattter is considered to have practical promise.

  17. Space charge physics for particle accelerators

    CERN Document Server

    Hofmann, Ingo

    2017-01-01

    Understanding and controlling the physics of space charge effects in linear and circular proton and ion accelerators are essential to their operation, and to future high-intensity facilities. This book presents the status quo of this field from a theoretical perspective, compares analytical approaches with multi-particle computer simulations and – where available – with experiments. It discusses fundamental concepts of phase space motion, matched beams and modes of perturbation, along with mathematical models of analysis – from envelope to Vlasov-Poisson equations. The main emphasis is on providing a systematic description of incoherent and coherent resonance phenomena; parametric instabilities and sum modes; mismatch and halo; error driven resonances; and emittance exchange due to anisotropy, as well as the role of Landau damping. Their distinctive features are elaborated in the context of numerous sample simulations, and their potential impacts on beam quality degradation and beam loss are discussed....

  18. Matter and Interactions: a particle physics perspective

    CERN Document Server

    Organtini, Giovanni

    2011-01-01

    In classical mechanics matter and fields are completely separated. Matter interacts with fields. For particle physicists this is not the case. Both matter and fields are represented by particles. Fundamental interactions are mediated by particles exchanged between matter particles. In this paper we explain why particle physicists believe in such a picture, introducing the technique of Feynman diagrams starting from very basic and popular analogies with classical mechanics, making the physics of elementary particles comprehensible even to high school students, the only prerequisite being the knowledge of the conservation of mechanical energy.

  19. Particle physics and cosmology in supersymmetric models

    Science.gov (United States)

    Morrissey, David Edgar

    The Standard Model (SM) of particle physics provides an excellent description of the elementary particle interactions observed in particle collider experiments, but the model does less well when it is applied to cosmology. Recent measurements of the Universe over very large distances indicate the existence of non-luminous dark matter and an excess of baryons over anti-baryons. The SM is unable to account for either of these results, implying that an extension of the SM description is needed. One such extension is supersymmetry. Within the minimal supersymmetric version of the SM, the MSSM, the lightest superpartner particle can make up the dark matter, and the baryon asymmetry can be generated by the mechanism of electroweak baryogenesis (EWBG). In this work, we examine these issues together in order to find out whether the MSSM can account for both of them simultaneously. We find that the MSSM can explain both the baryon asymmetry and the dark matter, but only over a very constrained region of the model parameter space. The strongest constraints on this scenario come from the lower bound on the Higgs boson mass, and the upper bound on the electric dipole moment of the electron. Moreover, upcoming experiments will probe the remaining allowed parameter space in the near future. Some of these constraints may be relaxed by going beyond the MSSM. With this in mind, we also investigate the nMSSM, a minimal singlet extension of the MSSM. We find that this model can also explain both the dark matter and the baryon asymmetry.

  20. Charged particle therapy: the physics of interaction.

    Science.gov (United States)

    Lomax, Antony J

    2009-01-01

    Particle therapy has a long and distinguished history with more than 50,000 patients having been treated, mainly with high-energy proton therapy. Particularly, for proton therapy, there is an increasing interest in exploiting the physical characteristics of charged particles for further improving the potential of radiation therapy. In this article, we review the most important interactions of charged particles with matter and describe the basic physical principles that underlie why particle beams behave the way they do and why such a behavior could bring many benefits in radiation therapy.

  1. Physics Results at the LHC and Implications for Future High Energy Physics Programmes

    CERN Document Server

    Heuer, Rolf-Dieter

    2012-01-01

    This paper presents the latest physics results from the LHC and describes high-energy colliders at the energy frontier for the years to come. The contribution also describes the various future directions, all of which have a unique value to add to experimental particle physics, and concludes by outlining key messages for the way forward.

  2. Exotic smoothness and particle physics

    CERN Document Server

    Sladkowski, J

    1996-01-01

    Short introduction to exotic differential structures on manifolds is given. The possible physical context of this mathematical curiosity is discussed. The topic is very interesting although speculative.

  3. Standard Model of Particle Physics--a health physics perspective.

    Science.gov (United States)

    Bevelacqua, J J

    2010-11-01

    The Standard Model of Particle Physics is reviewed with an emphasis on its relationship to the physics supporting the health physics profession. Concepts important to health physics are emphasized and specific applications are presented. The capability of the Standard Model to provide health physics relevant information is illustrated with application of conservation laws to neutron and muon decay and in the calculation of the neutron mean lifetime.

  4. Frontiers of particle beam physics

    Energy Technology Data Exchange (ETDEWEB)

    Sessler, A.M.

    1989-11-01

    First, a review is given of various highly-developed techniques for particle handling which are, nevertheless, being vigorously advanced at the present time. These include soft superconductor radio frequency cavities, hard superconductor magnets, cooling rings for ions and anti-protons, and damping rings for electrons. Second, attention is focused upon novel devices for particle generation, acceleration, and focusing. These include relativistic klystrons and free electron laser power sources, binary power multipliers, photocathodes, switched-power linacs, plasma beat-wave accelerators, plasma wake-field accelerators, plasma lenses, plasma adiabatic focusers and plasma compensators. 12 refs.

  5. Review of Particle Physics, 2014-2015

    CERN Document Server

    Olive, K A; Amsler, C; Antonelli, M; Arguin, J-F; Asner, D M; Baer, H; Band, H R; Barnett, R M; Basaglia, T; Bauer, C W; Beatty, J J; Belousov, V I; Beringer, J; Bernardi, G; Bethke, S; Bichsel, H; Biebel, O; Blucher, E; Blusk, S; Brooijmans, G; Buchmueller, O; Burkert, V; Bychkov, M A; Cahn, R N; Carena, M; Ceccucci, A; Cerri, A; Chakraborty, D; Chen, M-C; Chivukula, R S; Copic, K; Cowan, G; Dahl, O; D'Ambrosio, G; Damour, T; de Florian, D; de Gouvea, A; DeGrand, T; de Jong, P; Dissertori, G; Dobrescu, B A; Doser, M; Drees, M; Dreiner, H K; Edwards, D A; Eidelman, S; Erler, J; Ezhela, V V; Fetscher, W; Fields, B D; Foster, B; Freitas, A; Gaisser, T K; Gallagher, H; Garren, L; Gerber, H-J; Gerbier, G; Gershon, T; Gherghetta, T; Golwala, S; Goodman, M; Grab, C; Gritsan, A V; Grojen, C; Groom, D E; Grunewald, M; Gurtu, A; Gutsche, T; Haber, H E; Hagiwara, K; Hanhart, C; Hashimoto, S; Hayato, Y; Hayes, K G; Heffner, M; Heltsley, B; Hernandez-Rey, J J; Hikasa, K; Hocker, A; Holder, J; Holtkamp, A; Huston, J; Jackson, J D; Johnson, K F; Junk, T; Kado, M; Karlen, D; Katz, U F; Klein, S R; Klempt, E; Kowalewski, R V; Krauss, F; Kreps, M; Krusche, B; Kuyanov, Yu V; Kwon, Y; Lahav, O; Laiho, J; Langacker, P; Liddle, A; Ligeti, Z; Lin, C-J; Liss, T M; Littenberg, L; Lugovsky, K S; Lugovsky, S B; Maltoni, F; Mannel, T; Manohar, A V; Marciano, W J; Martin, A D; Masoni, A; Matthews, J; Milstead, D; Molaro, P; Munig, K; Moortgat, F; Mortonson, M J; Murayama, H; Nakamura, K; Narain, M; Nason, P; Navas, S; Neubert, M; Nevski, P; Nir, Y; Pape, L; Parsons, J; Patrignani, C; Peacock, J A; Pennington, M; Petcov, S T; Piepke, A; Pomarol, A; Quadt, A; Raby, S; Rademacker, J; Raffelt, G; Ratcliff, B N; Richardson, P; Ringwald, A; Roesler, S; Rolli, S; Romaniouk, A; Rosenberg, L J; Rosner, J L; Rybka, G; Sachrajda, C T; Sakai, Y; Salam, G P; Sarkar, S; Sauli, F; Schneider, O; Scholberg, K; Scott, D; Sharma, V; Sharpe, S R; Silari, M; Sjostrand, T; Skands, P; Smith, J G; Smoot, G F; Spanier, S; Spieler, H; Spiering, C; Stahl, A; Stanev, T; Stone, S L; Sumiyoshi, T; Syphers, M J; Takahashi, F; Tanabashi, M; Terning, J; Tiator, L; Titov, M; Tkachenko, N P; Tornqvist, N A; Tovey, D; Valencia, G; Venanzoni, G; Vincter, M G; Vogel, P; Vogt, A; Wakely, S P; Walkowiak, W; Walter, C W; Ward, D R; Weiglein, G; Weinberg, D H; Weinberg, E J; White, M; Wiencke, L R; Wohl, C G; Wolfenstein, L; Womersley, J; Woody, C L; Workman, R L; Yamamoto, A; Yao, W-M; Zeller, G P; Zenin, O V; Zhang, J; Zhu, R-Y; Zimmermann, F; Zyla, P A; Harper, G; Lugovsky, V.S; Schaffner, P

    2014-01-01

    The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,283 new measurements from 899 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as heavy neutrinos, supersymmetric and technicolor particles, axions, dark photons, etc. All the particle properties and search limits are listed in Summary Tables. We also give numerous tables, figures, formulae, and reviews of topics such as Supersymmetry, Extra Dimensions, Particle Detectors, Probability, and Statistics. Among the 112 reviews are many that are new or heavily revised including those on: Dark Energy, Higgs Boson Physics, Electroweak Model, Neutrino Cross Section Measurements, Monte Carlo Neutrino Generators, Top Quark, Dark Matter, Dynamical Electroweak Symmetry Breaking, Accelerator Physics of Colliders, High-Energy Collider Parameters, Big Bang Nucleosyn...

  6. Quantum Gravity: The View From Particle Physics

    Science.gov (United States)

    Nicolai, Hermann

    This lecture reviews aspects of and prospects for progress towards a theory of quantum gravity from a particle physics perspective, also paying attention to recent findings of the LHC experiments at CERN.

  7. Review of Particle Physics, 2010-2011

    CERN Document Server

    Nakamura, K; Hikasa, K; Murayama, H; Tanabashi, M; Watari, T; Amsler, C; Antonelli, M; Asner, D M; Baer, H; Band, H R; Barnett, R M; Basaglia, T; Bergren, E; Beringer, J; Bernardi, G; Bertl, W; Bichsel, H; Biebel, O; Blucher, E; Blusk, S; Cahn, R N; Carena, M; Ceccucci, A; Chakraborty, D; Chen, M-C; Chivukula, R S; Cowan, G; Dahl, O; D’Ambrosio, G; Damour, T; de Florian, D; de Gouvêa, A; DeGrand, T; Dissertori, G; Dobrescu, B; Doser, M; Drees, M; Edwards, D A; Eidelman, S; Erler, J; Ezhela, V V; Fetscher, W; Fields, B D; Foster, B; Gaisser, T K; Garren, L; Gerber, H-J; Gerbier, G; Gherghetta, T; Giudice, G F; Golwala, S; Goodman, M; Grab, C; Gritsan, A V; Grivaz, J-F; Groom, D E; Grünewald, M; Gurtu, A; Gutsche, T; Haber, H E; Hagmann, C; Hayes, K G; Heffner, M; Heltsley, B; Hernández-Rey, J J; Höcker, A; Holder, J; Huston, J; Jackson, J D; Johnson, K F; Junk, T; Karle, A; Karlen, D; Kayser, B; Kirkby, D; Klein, S R; Kolda, C; Kowalewski, R V; Krusche, B; Kuyanov, Yu V; Kwon, Y; Lahav, O; Langacker, P; Liddle, A; Ligeti, Z; Lin, C-J; Liss, T M; Littenberg, L; Lugovsky, K S; Lugovsky, S B; Lys, J; Mahlke, H; Mannel, T; Manohar, A V; Marciano, W J; Martin, A D; Masoni, A; Milstead, D; Miquel, R; Mönig, K; Narain, M; Nason, P; Navas, S; Nevski, P; Nir, Y; Olive, K A; Pape, L; Patrignani, C; Peacock, J A; Petcov, S T; Piepke, A; Punzi, G; Quadt, A; Raby, S; Raffelt, G; Ratcliff, B N; Richardson, P; Roesler, S; Rolli, S; Romaniouk, A; Rosenberg, L J; Rosner, J L; Sachrajda, C T; Sakai, Y; Salam, G P; Sarkar, S; Sauli, F; Schneider, O; Scholberg, K; Scott, D; Seligman, W G; Shaevitz, M H; Silari, M; Sjöstrand, T; Smith, J G; Smoot, G F; Spanier, S; Spieler, H; Stahl, A; Stanev, T; Stone, S L; Sumiyoshi, T; Syphers, M J; Terning, J; Titov, M; Tkachenko, N P; Törnqvist, N A; Tovey, D; Trippe, T G; Valencia, G; van Bibber, K; Venanzoni, G; Vincter, M G; Vogel, P; Vogt, A; Walkowiak, W; Walter, C W; Ward, D R; Webber, B R; Weiglein, G; Weinberg, E J; Wells, J D; Wheeler, A; Wiencke, L R; Wohl, C G; Wolfenstein, L; Womersley, J; Woody, C L; Workman, R L; Yamamoto, A; Yao, W-M; Zenin, O V; Zhang, J; Zhu, R-Y; Zyla, P A; Harper, G; Lugovsky, V S; Schaffner, P

    2010-01-01

    This biennial Review summarizes much of particle physics. Using data from previous editions, plus 2158 new measurements from 551 papers, we list, evaluate, and average measured properties of gauge bosons, leptons, quarks, mesons, and baryons. We also summarize searches for hypothetical particles such as Higgs bosons, heavy neutrinos, and supersymmetric particles. All the particle properties and search limits are listed in Summary Tables. We also give numerous tables, figures, formulae, and reviews of topics such as the Standard Model, particle detectors, probability, and statistics. Among the 108 reviews are many that are new or heavily revised including those on neutrino mass, mixing, and oscillations, QCD, top quark, CKM quark-mixing matrix, Vud & Vus, Vcb & Vub, fragmentation functions, particle detectors for accelerator and non-accelerator physics, magnetic monopoles, cosmological parameters, and big bang cosmology.

  8. Research in elementary particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Kirsch, L.E.; Schnitzer, H.J.; Bensinger, J.R.; Blocker, C.A.

    1992-01-01

    This report discusses research in the following areas of high energy physics: B meson mixing; CDF response to low energy jets; jet scaling behavior; search for pair produced leptoquarks at CDF; SSC program; quantum field theory; and neural networks. (LSP).

  9. An introductory course of particle physics

    CERN Document Server

    Pal, Palash B

    2014-01-01

    For graduate students unfamiliar with particle physics, this text teaches the basic techniques and fundamental theories related to the subject. It gives them the competence to work out various properties of fundamental particles, such as scattering cross-section and lifetime. The book also gives a lucid summary of the main ideas involved. Figure slides are available upon qualifying course adoption.

  10. Future prospects in nuclear physics and the Japanese hadron facility

    Energy Technology Data Exchange (ETDEWEB)

    Metag, V. [Gesellschaft fuer Schwerionenforschung mbH, Darmstadt (Germany)]|[Giessen Univ. (Germany). 2. Physikalisches Inst.

    1998-05-01

    The Japanese Hadron Facility (JHF) will provide new perspectives for a broad research program covering nuclear and particle physics, condensed matter physics, material sciences, and life sciences. In this talk, the future prospects of nuclear physics, as they are discussed within the community, are addressed. Recommendations worked out by the study groups, evaluating the long term perspectives of GSI, have hereby been used as a guideline. Nuclear physics is considered here in a broad sense as the physics of extended structured objects bound by the strong interaction, i.e. mesons, baryons, and nuclei. Preference is given to those subfields which would benefit most from the new experimental possibilities to the JHF. Consequently, the structure of exotic nuclei and hypernuclei, the properties of compressed hadronic matter and medium modifications of hadrons, spectroscopy of mesons, glueballs and baryons, and the parton structure of the nucleon are addressed and analyzed with regard to their future physics potential. (orig.)

  11. "Strong interaction" for particle physics laboratories

    CERN Multimedia

    2003-01-01

    A new Web site pooling the communications resources of particle physics centres all over the world has just been launched. The official launching of the new particle physics website Interactions.org during the Lepton-Proton 2003 Conference at the American laboratory Fermilab was accompanied by music and a flurry of balloons. On the initiative of Fermilab, the site was created by a collaboration of communication teams from over fifteen of the world's particle physics laboratories, including KEK, SLAC, INFN, JINR and, of course, CERN, who pooled their efforts to develop the new tool. The spectacular launching of the new particle physics website Interactions.org at Fermilab on 12 August 2003. A real gateway to particle physics, the site not only contains all the latest news from the laboratories but also offers images, graphics and a video/animation link. In addition, it provides information about scientific policies, links to the universities, a very useful detailed glossary of particle physics and astrophysic...

  12. Introducing particle physics a graphic guide

    CERN Document Server

    Whyntie, Tom

    2013-01-01

    What really happens at the most fundamental levels of nature? Introducing Particle Physics explores the very frontiers of our knowledge, even showing how particle physicists are now using theory and experiment to probe our very concept of what is real. From the earliest history of the atomic theory through to supersymmetry, micro-black holes, dark matter, the Higgs boson, and the possibly mythical graviton, practising physicist and CERN contributor Tom Whyntie gives us a mind-expanding tour of cutting-edge science. Featuring brilliant illustrations from Oliver Pugh, Introducing Particle Physics is a unique tour through the most astonishing and challenging science being undertaken today.

  13. Summer Workshop on Particle Physics

    CERN Document Server

    Chamseddine, A H; Nath, Pran

    1984-01-01

    These lectures give an elementary introduction to the important recent developments of the applications of N=1 supergravity to the construction of unified models of elementary particle interactions. Topics covered include couplings of supergravity with matter, spontaneous symmetry breaking and the super-higgs effect, construction of supergravity unified models, and the phenomenon of SU(2) x U(1) electroweak-symmetry breaking by supergravity. Experimental consequences of N-1 supergravity unified theory, in particular, the possible supersymmetric decays of the W ± and Z 0 bosons, are also discus

  14. Symmetry and symmetry breaking in particle physics

    OpenAIRE

    Tsou, ST

    1998-01-01

    Symmetry, in particular gauge symmetry, is a fundamental principle in theoretical physics. It is intimately connected to the geometry of fibre bundles. A refinement to the gauge principle, known as ``spontaneous symmetry breaking'', leads to one of the most successful theories in modern particle physics. In this short talk, I shall try to give a taste of this beautiful and exciting concept.

  15. Small Particle May Answer Large Physics Questions

    Energy Technology Data Exchange (ETDEWEB)

    Hazi, A

    2005-09-20

    In one of those interesting intersections of particle physics, astrophysics, and cosmology, scientists from Lawrence Livermore National Laboratory, the University of California at Berkeley (UCB), the University of Florida (UF), and the National Radio Astronomy Observatory (NRAO) have joined together to try to pin down an elusive particle. This particle, called the axion, if it is found to exist and is not just a hypothesis, would be a long-sought relic from the first fractional second of the birth of the universe and one of the most weakly interacting particles known. Experimental verification of the existence of the axion would not only help ''balance the budget'' for the missing mass of the universe but also clear up one of the thorniest issues in particle physics.

  16. Elementary particle physics at the University of Florida

    Energy Technology Data Exchange (ETDEWEB)

    1991-12-01

    This report discusses research in the following areas: theoretical elementary particle physics; experimental elementary particle physics; axion project; SSC detector development; and computer acquisition. (LSP).

  17. International Particle Physics Masterclasses with LHC data

    Directory of Open Access Journals (Sweden)

    Foka Panagiota

    2014-04-01

    Full Text Available The International Particle Physics Masterclasses is an educational activity developed by the International Particle Physics Outreach Group with the aim to bring the excitement of cutting-edge particle-physics research into the classroom. Since 2005, every year, thousands of pupils in many countries all over the world become “scientists for a day” in research centres or universities close to their schools as they are introduced to the mysteries of particle physics. In 2012, 10 000 students from 148 institutions in 31 countries took part in this popular event over a month period. The program of a typical day includes lectures that give insight to topics and methods of fundamental research followed by a “hands-on” session where students perform measurements on real data from particle-physics experiments themselves. The last two years LHC data from the ALICE, ATLAS and CMS experiments were used. A overview of the performed measurements and the employed methodology is presented.

  18. Scalar Fields in Particle Physics

    CERN Document Server

    Pedro, Leonardo

    2016-01-01

    Extending the scalar sector helps in studying the Higgs mechanism and some Standard Model problems. We implement the correspondence between the gauge-dependent elementary states and the non-perturbative non-abelian gauge-invariant asymptotic states, necessary to study the non-perturbative phenomenology of two-Higgs-doublet models. The Flavour and CP violation in experimental data follows a hierarchical pattern, accounted by the Standard Model. We define the Minimal Flavour Violation condition with six spurions in effective field theories, implying Flavour and CP violation entirely dependent on the fermion mixing matrices but independent of the fermion masses hierarchy; it is renormalization-group invariant. We study the phenomenology of renormalizable two-Higgs-doublet models which verify the defined condition as consequence of a symmetry; new light physical scalars, mediating Flavour Changing Neutral Currents, are allowed by flavour data without flavour coefficients beyond the Standard Model; we tested the m...

  19. IceCube: physics, status, and future

    OpenAIRE

    Hultqvist, Klas; collaboration, for the IceCube

    2010-01-01

    The IceCube observatory is the first cubic kilometre scale instrument in the field of high-energy neutrino astronomy and cosmic rays. In 2009, following five successful deployment seasons, IceCube consisted of 59 strings of optical modules in the South Pole ice, together with 118 air shower detectors in the IceTop surface array. The range of physics topics includes neutrino signals from astrophysical sources, dark matter, exotic particle physics, cosmic rays, and atmospheric neutrinos. The cu...

  20. Basics of particle therapy I: physics.

    Science.gov (United States)

    Park, Seo Hyun; Kang, Jin Oh

    2011-09-01

    With the advance of modern radiation therapy technique, radiation dose conformation and dose distribution have improved dramatically. However, the progress does not completely fulfill the goal of cancer treatment such as improved local control or survival. The discordances with the clinical results are from the biophysical nature of photon, which is the main source of radiation therapy in current field, with the lower linear energy transfer to the target. As part of a natural progression, there recently has been a resurgence of interest in particle therapy, specifically using heavy charged particles, because these kinds of radiations serve theoretical advantages in both biological and physical aspects. The Korean government is to set up a heavy charged particle facility in Korea Institute of Radiological & Medical Sciences. This review introduces some of the elementary physics of the various particles for the sake of Korean radiation oncologists' interest.

  1. Mechanical models of physical fields and particles

    CERN Document Server

    Dmitriyev, V P

    1999-01-01

    Earlier obtained results on mechanical analogies of physical fields and particles are reviewed. The approach rests on the concept of the substratum - a mechanical medium, which occupies all the space and serves as a seat to support the light and to transmit interactions. A turbulent ideal fluid was chosen for the substratum. The turbulence is supposed to be homogeneous and isotropic in its ground state. Perturbations of the turbulence model physical fields. Particles originate from the voids in the fluid. Symmetrical pairs of particle-antiparticle find analogies in mechanical pairs of cyclone-anticyclone. A quantum particle is modeled by the dispersion of a point discontinuity (defect) in the stochastic medium. Gravitation relates to emitting by defects the continual flow of the transient point dilatation. The shock wave mechanism of the re-collection a discontinuity in the incompressible medium governs such phenomena as the "wave function collapse" and instantaneous quantum correlations. Microscopically, the...

  2. Research in Theoretical Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Feldman, Hume A; Marfatia, Danny

    2014-09-24

    This document is the final report on activity supported under DOE Grant Number DE-FG02-13ER42024. The report covers the period July 15, 2013 – March 31, 2014. Faculty supported by the grant during the period were Danny Marfatia (1.0 FTE) and Hume Feldman (1% FTE). The grant partly supported University of Hawaii students, David Yaylali and Keita Fukushima, who are supervised by Jason Kumar. Both students are expected to graduate with Ph.D. degrees in 2014. Yaylali will be joining the University of Arizona theory group in Fall 2014 with a 3-year postdoctoral appointment under Keith Dienes. The group’s research covered topics subsumed under the Energy Frontier, the Intensity Frontier, and the Cosmic Frontier. Many theoretical results related to the Standard Model and models of new physics were published during the reporting period. The report contains brief project descriptions in Section 1. Sections 2 and 3 lists published and submitted work, respectively. Sections 4 and 5 summarize group activity including conferences, workshops and professional presentations.

  3. Foundations of nuclear and particle physics

    CERN Document Server

    Donnelly, T William; Holstein, Barry R; Milner, Richard G; Surrow, Bernd

    2017-01-01

    This textbook brings together nuclear and particle physics, presenting a balanced overview of both fields as well as the interplay between the two. The theoretical as well as the experimental foundations are covered, providing students with a deep understanding of the subject. In-chapter exercises ranging from basic experimental to sophisticated theoretical questions provide an important tool for students to solidify their knowledge. Suitable for upper undergraduate courses in nuclear and particle physics as well as more advanced courses, the book includes road maps guiding instructors on tailoring the content to their course. Online resources including color figures, tables, and a solutions manual complete the teaching package. This textbook will be essential for students preparing for further study or a career in the field who require a solid grasp of both nuclear and particle physics.

  4. Dark Energy, Particle Physics and Cosmology

    Science.gov (United States)

    Turner, Michael S.

    2012-05-01

    Dark energy and cosmic acceleration is one of the three pillars of the current cosmological paradigm. Moreover, both raise fundamental issues in cosmology and particle physics. In particle physics, the dark energy problem is intimately related to the perplexing issue of why the quantum energy of the vacuum is so small. In cosmology, the nature of the dark energy is crucial to understanding the destiny of the Universe. I will discuss the status of current models for dark energy -- including vacuum energy and rolling scalar fields -- their implications for cosmology and for particle physics and how they can be tested by WFIRST. I will also address the status of the possibility that cosmic acceleration is explained by modifying or replacing general relativity.

  5. UK physics council sees grim future

    Science.gov (United States)

    Brumfiel, Geoff

    2009-11-01

    Britain's high-energy physicists and astronomers are bracing themselves for budget cuts. The Science and Technology Facilities Council (STFC), which funds the United Kingdom's astronomy, particle- and nuclear-physics communities, is short by roughly £40 million (US$66 million) in its annual £450-million cash budget.

  6. Review of Particle Physics, 2012-2013

    CERN Document Server

    Beringer, J; Barnett, R M; Copic, K; Dahl, O; Groom, D E; Lin, C J; Lys, J; Murayama, H; Wohl, C G; Yao, W M; Zyla, P A; Amsler, C; Antonelli, M; Asner, D M; Baer, H; Band, H R; Basaglia, T; Bauer, C W; Beatty, J J; Belousov, V I; Bergren, E; Bernardi, G; Bertl, W; Bethke, S; Bichsel, H; Biebel, O; Blucher, E; Blusk, S; Brooijmans, G; Buchmueller, O; Cahn, R N; Carena, M; Ceccucci, A; Chakraborty, D; Chen, M C; Chivukula, R S; Cowan, G; D'Ambrosio, G; Damour, T; de Florian, D; de Gouvea, A; DeGrand, T; de Jong, P; Dissertori, G; Dobrescu, B; Doser, M; Drees, M; Edwards, D A; Eidelman, S; Erler, J; Ezhela, V V; Fetscher, W; Fields, B D; Foster, B; Gaisser, T K; Garren, L; Gerber, H J; Gerbier, G; Gherghetta, T; Golwala, S; Goodman, M; Grab, C; Gritsan, A V; Grivaz, J F; Grunewald, M; Gurtu, A; Gutsche, T; Haber, H E; Hagiwara, K; Hagmann, C; Hanhart, C; Hashimoto, S; Hayes, K G; Heffner, M; Heltsley, B; Hernandez-Rey, J J; Hikasa, K; Hocker, A; Holder, J; Holtkamp, A; Huston, J; Jackson, J D; Johnson, K F; Junk, T; Karlen, D; Kirkby, D; Klein, S R; Klempt, E; Kowalewski, R V; Krauss, F; Kreps, M; Krusche, B; Kuyanov, Yu.V; Kwon, Y; Lahav, O; Laiho, J; Langacker, P; Liddle, A; Ligeti, Z; Liss, T M; Littenberg, L; Lugovsky, K S; Lugovsky, S B; Mannel, T; Manohar, A V; Marciano, W J; Martin, A D; Masoni, A; Matthews, J; Milstead, D; Miquel, R; Monig, K; Moortgat, F; Nakamura, K; Narain, M; Nason, P; Navas, S; Neubert, M; Nevski, P; Nir, Y; Olive, K A; Pape, L; Parsons, J; Patrignani, C; Peacock, J A; Petcov, S T; Piepke, A; Pomarol, A; Punzi, G; Quadt, A; Raby, S; Raffelt, G; Ratcliff, B N; Richardson, P; Roesler, S; Rolli, S; Romaniouk, A; Rosenberg, L J; Rosner, J L; Sachrajda, C T; Sakai, Y; Salam, G P; Sarkar, S; Sauli, F; Schneider, O; Scholberg, K; Scott, D; Seligman, W G; Shaevitz, M H; Sharpe, S R; Silari, M; Sjostrand, T; Skands, P; Smith, J G; Smoot, G F; Spanier, S; Spieler, H; Stahl, A; Stanev, T; Stone, S L; Sumiyoshi, T; Syphers, M J; Takahashi, F; Tanabashi, M; Terning, J; Titov, M; Tkachenko, N P; Tornqvist, N A; Tovey, D; Valencia, G; van Bibber, K; Venanzoni, G; Vincter, M G; Vogel, P; Vogt, A; Walkowiak, W; Walter, C W; Ward, D R; Watari, T; Weiglein, G; Weinberg, E J; Wiencke, L R; Wolfenstein, L; Womersley, J; Woody, C L; Workman, R L; Yamamoto, A; Zeller, G P; Zenin, O V; Zhang, J; Zhu, R Y; Harper, G; Lugovsky, V S; Schaffner, P

    2012-01-01

    This biennial Review summarizes much of particle physics. Using data from previous editions, plus 2658 new measurements from 644 papers, we list, evaluate, and average measured properties of gauge bosons, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as Higgs bosons, heavy neutrinos, and supersymmetric particles. All the particle properties and search limits are listed in Summary Tables. We also give numerous tables, figures, formulae, and reviews of topics such as the Standard Model, particle detectors, probability, and statistics. Among the 112 reviews are many that are new or heavily revised including those on Heavy-Quark and Soft-Collinear Effective Theory, Neutrino Cross Section Measurements, Monte Carlo Event Generators, Lattice QCD, Heavy Quarkonium Spectroscopy, Top Quark, Dark Matter, Vcb & Vub, Quantum Chromodynamics, High-Energy Collider Parameters, Astrophysical Constants, Cosmological Parameters, and Dark Matter.

  7. Particle physics with the LHC data

    Science.gov (United States)

    Hagiwara, Kaoru

    2012-07-01

    In this talk, I give reasons why we regard GUT as a part of the Standard Model of Elementary Particle Physics that explain all phenomena observed at high energy experiments and in the universe, with a few notable exceptions. It is based on my introduction-to-elementary-particle-physics lectures for the first year graduate students at Sokendai, Graduate University for Advanced Studies. No new observation is made, but I think that it is important for us to examine the LHC data from the GUT viewpoint together with our fresh students.

  8. The CMS Masterclass and Particle Physics Outreach

    Energy Technology Data Exchange (ETDEWEB)

    Cecire, Kenneth [Notre Dame U.; Bardeen, Marjorie [Fermilab; McCauley, Thomas [Notre Dame U.

    2014-01-01

    The CMS Masterclass enables high school students to analyse authentic CMS data. Students can draw conclusions on key ratios and particle masses by combining their analyses. In particular, they can use the ratio of W^+ to W^- candidates to probe the structure of the proton, they can find the mass of the Z boson, and they can identify additional particles including, tentatively, the Higgs boson. In the United States, masterclasses are part of QuarkNet, a long-term program that enables students and teachers to use cosmic ray and particle physics data for learning with an emphasis on data from CMS.

  9. The CMS Masterclass and Particle Physics Outreach

    Science.gov (United States)

    Cecire, Kenneth; Bardeen, Marjorie; McCauley, Thomas

    2014-04-01

    The CMS Masterclass enables high school students to analyse authentic CMS data. Students can draw conclusions on key ratios and particle masses by combining their analyses. In particular, they can use the ratio of W+ to W- candidates to probe the structure of the proton, they can find the mass of the Z boson, and they can identify additional particles including, tentatively, the Higgs boson. In the United States, masterclasses are part of QuarkNet, a long-term program that enables students and teachers to use cosmic ray and particle physics data for learning with an emphasis on data from CMS.

  10. Nuclear physics in particle therapy: a review

    Science.gov (United States)

    Durante, Marco; Paganetti, Harald

    2016-09-01

    Charged particle therapy has been largely driven and influenced by nuclear physics. The increase in energy deposition density along the ion path in the body allows reducing the dose to normal tissues during radiotherapy compared to photons. Clinical results of particle therapy support the physical rationale for this treatment, but the method remains controversial because of the high cost and of the lack of comparative clinical trials proving the benefit compared to x-rays. Research in applied nuclear physics, including nuclear interactions, dosimetry, image guidance, range verification, novel accelerators and beam delivery technologies, can significantly improve the clinical outcome in particle therapy. Measurements of fragmentation cross-sections, including those for the production of positron-emitting fragments, and attenuation curves are needed for tuning Monte Carlo codes, whose use in clinical environments is rapidly increasing thanks to fast calculation methods. Existing cross sections and codes are indeed not very accurate in the energy and target regions of interest for particle therapy. These measurements are especially urgent for new ions to be used in therapy, such as helium. Furthermore, nuclear physics hardware developments are frequently finding applications in ion therapy due to similar requirements concerning sensors and real-time data processing. In this review we will briefly describe the physics bases, and concentrate on the open issues.

  11. Nuclear physics in particle therapy: a review.

    Science.gov (United States)

    Durante, Marco; Paganetti, Harald

    2016-09-01

    Charged particle therapy has been largely driven and influenced by nuclear physics. The increase in energy deposition density along the ion path in the body allows reducing the dose to normal tissues during radiotherapy compared to photons. Clinical results of particle therapy support the physical rationale for this treatment, but the method remains controversial because of the high cost and of the lack of comparative clinical trials proving the benefit compared to x-rays. Research in applied nuclear physics, including nuclear interactions, dosimetry, image guidance, range verification, novel accelerators and beam delivery technologies, can significantly improve the clinical outcome in particle therapy. Measurements of fragmentation cross-sections, including those for the production of positron-emitting fragments, and attenuation curves are needed for tuning Monte Carlo codes, whose use in clinical environments is rapidly increasing thanks to fast calculation methods. Existing cross sections and codes are indeed not very accurate in the energy and target regions of interest for particle therapy. These measurements are especially urgent for new ions to be used in therapy, such as helium. Furthermore, nuclear physics hardware developments are frequently finding applications in ion therapy due to similar requirements concerning sensors and real-time data processing. In this review we will briefly describe the physics bases, and concentrate on the open issues.

  12. The Coming Revolutions in Particle Physics

    Science.gov (United States)

    Quigg, Chris

    2006-12-01

    Wonderful opportunities await particle physics over the next decade, with new instruments and experiments poised to explore the frontiers of high energy, infinitesimal distances, and exquisite rarity. I will review the insights of the decade just past and show how they lead us to the brink of a new period of rapid and profound discovery. We expect answers to questions that speak to our understanding of the everyday world: why are there atoms? why chemistry? why stable structures? and even what makes life possible? We are probing the meaning of identity for the fundamental particles: what makes an electron an electron, a neutrino a neutrino, and a top quark a top quark? Important clues, including the remarkable neutrality of atoms, lead us to investigate the unity of the two main classes of matter, the quarks and leptons. Gravity and particle physics, long separate disciplines, are enjoying a stimulating reunion, and we are learning how to investigate—with experiments—new conceptions of spacetime. We look forward to the Large Hadron Collider at CERN to explore the a new and critical energy scale of one trillion electron volts. If we are inventive enough, we may be able to follow the LHC's rich menu with the physics opportunities offered by a linear electron-positron collider, a (muon storage ring) neutrino factory, and experiments that use natural sources. I expect a remarkable flowering of experimental particle physics, and of theoretical physics that engages with experiment.

  13. Neutrinos in particle physics, astronomy, and cosmology

    CERN Document Server

    Xing, Zhi-Zhong

    2011-01-01

    ""Neutrinos in Particle Physics, Astronomy and Cosmology"" provides a comprehensive and up-to-date introduction to neutrino physics, neutrino astronomy and neutrino cosmology. The intrinsic properties and fundamental interactions of neutrinos are described, as is the phenomenology of lepton flavor mixing, seesaw mechanisms and neutrino oscillations. The cosmic neutrino background, stellar neutrinos, supernova neutrinos and ultrahigh-energy cosmic neutrinos, together with the cosmological matter-antimatter asymmetry and other roles of massive neutrinos in cosmology, are discussed in detail. Thi

  14. Particle physics a picture book for children

    CERN Document Server

    Snelgar, Gregory

    2016-01-01

    Gregory Snelgar is a writer in the field of qualitative quantum physics, who explains the meaning of scientific concepts with minimal resort to mathematical equations. In this book he explains particle physics as if having a conversation with a 7 year old boy. Every page describes a concept with a full-page full-color photo, drawing, or diagram to help you rediscover your childlike curiosity. Fun for kids and kids-at-heart.

  15. Particle Physics Outreach to Secondary Education

    Energy Technology Data Exchange (ETDEWEB)

    Bardeen, Marjorie G.; /Fermilab; Johansson, K.Erik; /Stockholm U.; Young, M.Jean

    2011-11-21

    This review summarizes exemplary secondary education and outreach programs of the particle physics community. We examine programs from the following areas: research experiences, high-energy physics data for students, informal learning for students, instructional resources, and professional development. We report findings about these programs' impact on students and teachers and provide suggestions for practices that create effective programs from those findings. We also include some methods for assessing programs.

  16. Future of high energy physics some aspects

    CERN Document Server

    Prokofiev, Kirill

    2017-01-01

    This book comprises 26 carefully edited articles with well-referenced and up-to-date material written by many of the leading experts. These articles originated from presentations and dialogues at the second HKUST Institute for Advanced Study Program on High Energy Physics are organized into three aspects, Theory, Accelerator, and Experiment, focusing on in-depth analyses and technical aspects that are essential for the developments and expectations for the future high energy physics.

  17. Particle Physics in the LHC Era

    CERN Document Server

    Bunk, Don

    During the past 100 years experimental particle physicists have collected an impressive amount of data. Theorists have also come to understand this data extremely well. It was in the first half of the 20th century the efforts of the early pioneers of quantum mechanics laid the ground work for this understanding: quantum field theory. Through the tireless efforts of researchers during the later half of the 20th century many ideas came together to form what we now call the Standard Model (SM) of particle physics. Finally, it was through the ideas of the renormalization group and effective field theory that the understanding of how the SM fits into a larger framework of particle physics was crystallized. In the past four years the Large Hadron Collider (LHC) has made more precise measurements than ever before. Currently the SM of particle physics is known to have excellent agreement with these measurements. As a result of this agreement with data, the SM continues to play such a central role in modern particle p...

  18. A Long View of Particle Physics

    CERN Document Server

    Wilczek, Frank

    2012-01-01

    2011 marked the hundredth anniversary both of the famous Solvay conferences, and of the Geiger-Marsden experiment that launched the modern understanding of subatomic structure. I was asked to survey the status and prospects of particle physics for the anniversary Solvay conference, with appropriate perspective. This is my attempt.

  19. A Vision of Nuclear and Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Montgomery, Hugh E. [Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

    2016-08-01

    This paper will consist of a selected, personal view of some of the issues associated with the intersections of nuclear and particle physics. As well as touching on the recent developments we will attempt to look at how those aspects of the subject might evolve over the next few years.

  20. Particle physics in astrophysics and cosmology

    Science.gov (United States)

    Rees, Martin J.

    1990-08-01

    This paper briefly outlines some topics of current interest on the interface between astrophysics/cosmology and particle physics. These include: the implications of the cosmic light element abundances; evidence for non-baryonic dark matter, and the prospects for experimental searches; cosmic strings; and `inflationary' cosmology.

  1. Theoretical Studies in Elementary Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Collins, John C.; Roiban, Radu S

    2013-04-01

    This final report summarizes work at Penn State University from June 1, 1990 to April 30, 2012. The work was in theoretical elementary particle physics. Many new results in perturbative QCD, in string theory, and in related areas were obtained, with a substantial impact on the experimental program.

  2. LHCb in the International Particle Physics Masterclasses

    CERN Document Server

    Couturier, Ben

    2016-01-01

    The Large Hadron Collider Beauty (LHCb) Experiment joined the International Particle Physics Masterclass programme in 2013. The experiment proposed the measurement of the D0 meson lifetime, using real data gathered at the Large Hadron Collider in 2012. We describe the exercise as well as the lessons learned during this first participation in the International Masterclass programme.

  3. Visions: The coming revolutions in particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Chris Quigg

    2002-04-11

    Wonderful opportunities await particle physics over the next decade, with the coming of the Large Hadron Collider to explore the 1-TeV scale (extending efforts at LEP and the Tevatron to unravel the nature of electroweak symmetry breaking) and many initiatives to develop the understanding of the problem of identity and the dimensionality of spacetime.

  4. Phenomenal result for Durham in particle physics

    CERN Multimedia

    2000-01-01

    The University of Durham has beaten ten rivals to house a new 12 million pound institute for particle physics phenomenology. The institute will be supported for a minimum of ten years by PPARC and the university. Its first director will be Professor James Stirling (2 paragraphs).

  5. Inflation, large scale structure and particle physics

    Indian Academy of Sciences (India)

    S F King

    2004-02-01

    We review experimental and theoretical developments in inflation and its application to structure formation, including the curvation idea. We then discuss a particle physics model of supersymmetric hybrid inflation at the intermediate scale in which the Higgs scalar field is responsible for large scale structure, show how such a theory is completely natural in the framework extra dimensions with an intermediate string scale.

  6. Current Experiments in Particle Physics (September 1996)

    Energy Technology Data Exchange (ETDEWEB)

    Galic, H.; Lehar, F.; Klyukhin, V.I.; Ryabov, Yu.G.; Bilak, S.V.; Illarionova, N.S.; Khachaturov, B.A.; Strokovsky, E.A.; Hoffman, C.M.; Kettle, P.-R.; Olin, A.; Armstrong, F.E.

    1996-09-01

    This report contains summaries of current and recent experiments in Particle Physics. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, Frascati, ITEP (Moscow), JINR (Dubna), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several proton decay and solar neutrino experiments. Excluded are experiments that finished taking data before 1991. Instructions are given for the World Wide Web (WWW) searching of the computer database (maintained under the SLAC-SPIRES system) that contains the summaries. This report contains full summaries of 180 approved current and recent experiments in elementary particle physics. The focus of the report is on selected experiments which directly contribute to our better understanding of elementary particles and their properties such as masses, widths or lifetimes, and branching fractions.

  7. Medical physics aspects of particle therapy.

    Science.gov (United States)

    Jäkel, Oliver

    2009-11-01

    Charged particle beams offer an improved dose conformation to the target volume when compared with photon radiotherapy, with better sparing of normal tissue structures close to the target. In addition, beams of heavier ions exhibit a strong increase of the linear energy transfer in the Bragg peak when compared with the entrance region. These physical and biological properties make ion beams more favourable for radiation therapy of cancer than photon beams. As a consequence, particle therapy with protons and heavy ions has gained increasing interest worldwide. This contribution summarises the physical and biological principles of charged particle therapy with ion beams and highlights some of the developments in the field of beam delivery, the principles of treatment planning and the determination of absorbed dose in ion beams. The clinical experience gathered so far with carbon ion therapy is briefly reviewed.

  8. Beyond the standard model of particle physics.

    Science.gov (United States)

    Virdee, T S

    2016-08-28

    The Large Hadron Collider (LHC) at CERN and its experiments were conceived to tackle open questions in particle physics. The mechanism of the generation of mass of fundamental particles has been elucidated with the discovery of the Higgs boson. It is clear that the standard model is not the final theory. The open questions still awaiting clues or answers, from the LHC and other experiments, include: What is the composition of dark matter and of dark energy? Why is there more matter than anti-matter? Are there more space dimensions than the familiar three? What is the path to the unification of all the fundamental forces? This talk will discuss the status of, and prospects for, the search for new particles, symmetries and forces in order to address the open questions.This article is part of the themed issue 'Unifying physics and technology in light of Maxwell's equations'.

  9. Physics motivations for future CERN accelerators

    CERN Document Server

    de Roeck, A; Gianotti, F; de Roeck, Albert; Ellis, John; Gianotti, Fabiola

    2001-01-01

    We summarize the physics motivations for future accelerators at CERN. We argue that (a) a luminosity upgrade for the LHC could provide good physics return for a relatively modest capital investment, (b) CLIC would provide excellent long-term perspectives within many speculative scenarios for physics beyond the Standard Model, (c) a Very Large Hadron Collider could provide the first opportunity to explore the energy range up to about 30 TeV, (d) a neutrino factory based on a muon storage ring would provide an exciting and complementary scientific programme and a muon collider could be an interesting later option.

  10. Current experiments in elementary particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Wohl, C.G.; Armstrong, F.E., Oyanagi, Y.; Dodder, D.C.; Ryabov, Yu.G.; Frosch, R.; Olin, A.; Lehar, F.; Moskalev, A.N.; Barkov, B.P.

    1987-03-01

    This report contains summaries of 720 recent and current experiments in elementary particle physics (experiments that finished taking data before 1980 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Moscow Institute of Theoretical and Experimental Physics, Tokyo Institute of Nuclear Studies, KEK, LAMPF, Leningrad Nuclear Physics Institute, Saclay, Serpukhov, SIN, SLAC, and TRIUMF, and also experiments on proton decay. Instructions are given for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

  11. Particle physics 2009: licence to smile

    CERN Document Server

    2009-01-01

    Julie Peasley is the keeper of a very unusual zoo, a colourful set of hand-made plushies that represent the particles of the Standard Model and beyond. Her passion for physics and her art degree combine to give particles their personalities. She visited CERN on 25 May and met the CERNois in the library. Scientists consider that they have ‘seen’ a particle when their detectors send an electronic signal and a spot appears on their computer screen. The American artist Julie Peasley has gone much further than that and has started sewing toys so that we can not just ‘see’ what particles look like but even play with them! "When I started," says Julie, "my plushies weren’t smiling, they were just a face. Later on, I realised that I wanted them to all be happy and to appear like they are having fun. Except for the neutron, which insists on remaining ne...

  12. The future of astroparticle physics in Europe

    CERN Multimedia

    2007-01-01

    The European network ASPERA, which provides a structure for astroparticle physics in Europe and the planning of its long-term future, is going from strength to strength. A year after its launch, ASPERA has published an inventory of European activities in the astroparticle physics field. ASPERA has published a roadmap that describes Europe’s role in the field of astroparticle physics, including contributions made by Member States. ASPERA is a network of scientific agencies in 12 different European countries responsible for coordinating and funding astroparticle physics research. CERN also forms part of the network. The goal of the network, which has secured funding from the European Commission for a three-year period, is to define a common European strategy or "roadmap" for astroparticle physics. The inventory it has just published is an important step in the roadmap as it describes the role tha...

  13. Elementary Particles and the Laws of Physics

    Science.gov (United States)

    Feynman, Richard P.; Weinberg, Steven

    1987-11-01

    Developing a theory that seamlessly combines relativity and quantum mechanics, the most important conceptual breakthroughs in twentieth century physics, has proved to be a difficult and ongoing challenge. This book details how two distinguished physicists and Nobel laureates have explored this theme in two lectures given in Cambridge, England, in 1986 to commemorate the famous British physicist Paul Dirac. Given for nonspecialists and undergraduates, the talks transcribed in Elementary Particles and the Laws of Physics focus on the fundamental problems of physics and the present state of our knowledge. Professor Feynman examines the nature of antiparticles, and in particular the relationship between quantum spin and statistics. Professor Weinberg speculates on how Einstein's theory of gravitation might be reconciled with quantum theory in the final law of physics. Highly accessible, deeply thought provoking, this book will appeal to all those interested in the development of modern physics.

  14. Proposal for truth particle observable definitions in physics measurements

    CERN Document Server

    The ATLAS collaboration

    2015-01-01

    Measurements and theory predictions at the proton-proton collider LHC become increasingly precise. This makes it necessary to use definitions in the physics measurements that allow for a meaningful comparison of theory and experiment. Moreover, measurements should be defined such that they have a minimal model dependence and that future Monte Carlo simulation can be used for data comparisons. A suitable measurement definition can be based on the stable particles entering the detector. In this note a proposal for the definition of truth particles in the Monte Carlo simulation and observables derived from them is discussed.

  15. Applications of Hubble Volume in Atomic Physics, Nuclear Physics, Particle Physics, Quantum Physics and Cosmic Physics

    Directory of Open Access Journals (Sweden)

    U. V. S. Seshavatharam

    2013-08-01

    Full Text Available In this paper an attempt is made to emphasize the major shortcomings of standard cosmology. It can be suggested that, the current cosmological changes can be understood by studying the atom and the atomic nucleus through ground based experiments. If light is coming from the atoms of the gigantic galaxy, then redshift can be interpreted as an index of the galactic atomic ‘light emission mechanism’. In no way it seems to be connected with ‘galaxy receding’. With ‘cosmological increasing (emitted photon energy’, observed cosmic redshift can be considered as a measure of the age difference between our galaxy and any observed galaxy. If it is possible to show that, (from the observer older galaxy’s distance increases with its ‘age’, then ‘galaxy receding’ and ‘accelerating universe’ concepts can be put for a revision at fundamental level. At any given cosmic time, the product of ‘critical density’ and ‘Hubble volume’ gives a characteristic cosmic mass and it can be called as the ‘Hubble mass’. Interesting thing is that, Schwarzschild radius of the ‘Hubble mass’ again matches with the ‘Hubble length’. Most of the cosmologists believe that this is merely a coincidence. At any given cosmic time,’Hubble length’ can be considered as the gravitational or electromagnetic interaction range. If one is willing to think in this direction, by increasing the number of applications of Hubble mass and Hubble volume in other areas of fundamental physics like quantum physics, nuclear physics, atomic physics and particle physics - slowly and gradually - in a progressive way, concepts of ‘Black hole Cosmology’ can be strengthened and can also be confirmed.

  16. Dust particles investigation for future Russian lunar missions.

    Science.gov (United States)

    Dolnikov, Gennady; Horanyi, Mihaly; Esposito, Francesca; Zakharov, Alexander; Popel, Sergey; Afonin, Valeri; Borisov, Nikolay; Seran, Elena; Godefroy, Michel; Shashkova, Inna; Kuznetsov, Ilya; Lyash, Andrey; Vorobyova, Elena; Petrov, Oleg; Lisin, Evgeny

    One of the complicating factors of the future robotic and human lunar landing missions is the influence of the dust. Meteorites bombardment has accompanied by shock-explosive phenomena, disintegration and mix of the lunar soil in depth and on area simultaneously. As a consequence, the lunar soil has undergone melting, physical and chemical transformations. Recently we have the some reemergence for interest of Moon investigation. The prospects in current century declare USA, China, India, and European Union. In Russia also prepare two missions: Luna-Glob and Luna-Resource. Not last part of investigation of Moon surface is reviewing the dust condition near the ground of landers. Studying the properties of lunar dust is important both for scientific purposes to investigation the lunar exosphere component and for the technical safety of lunar robotic and manned missions. The absence of an atmosphere on the Moon's surface is leading to greater compaction and sintering. Properties of regolith and dust particles (density, temperature, composition, etc.) as well as near-surface lunar exosphere depend on solar activity, lunar local time and position of the Moon relative to the Earth's magneto tail. Upper layers of regolith are an insulator, which is charging as a result of solar UV radiation and the constant bombardment of charged particles, creates a charge distribution on the surface of the moon: positive on the illuminated side and negative on the night side. Charge distribution depends on the local lunar time, latitude and the electrical properties of the regolith (the presence of water in the regolith can influence the local distribution of charge). On light side of Moon near surface layer there exists possibility formation dusty plasma system. Altitude of levitation is depending from size of dust particle and Moon latitude. The distribution dust particle by size and altitude has estimated with taking into account photoelectrons, electrons and ions of solar wind, solar

  17. Advanced Analysis Methods in Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Bhat, Pushpalatha C. [Fermilab

    1900-01-01

    Each generation of high energy physics experiments is grander in scale than the previous – more powerful, more complex and more demanding in terms of data handling and analysis. The spectacular performance of the Tevatron and the beginning of operations of the Large Hadron Collider, have placed us at the threshold of a new era in particle physics. The discovery of the Higgs boson or another agent of electroweak symmetry breaking and evidence of new physics may be just around the corner. The greatest challenge in these pursuits is to extract the extremely rare signals, if any, from huge backgrounds arising from known physics processes. The use of advanced analysis techniques is crucial in achieving this goal. In this review, I discuss the concepts of optimal analysis, some important advanced analysis methods and a few examples. The judicious use of these advanced methods should enable new discoveries and produce results with better precision, robustness and clarity.

  18. Advanced analysis methods in particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Bhat, Pushpalatha C.; /Fermilab

    2010-10-01

    Each generation of high energy physics experiments is grander in scale than the previous - more powerful, more complex and more demanding in terms of data handling and analysis. The spectacular performance of the Tevatron and the beginning of operations of the Large Hadron Collider, have placed us at the threshold of a new era in particle physics. The discovery of the Higgs boson or another agent of electroweak symmetry breaking and evidence of new physics may be just around the corner. The greatest challenge in these pursuits is to extract the extremely rare signals, if any, from huge backgrounds arising from known physics processes. The use of advanced analysis techniques is crucial in achieving this goal. In this review, I discuss the concepts of optimal analysis, some important advanced analysis methods and a few examples. The judicious use of these advanced methods should enable new discoveries and produce results with better precision, robustness and clarity.

  19. Exotic smoothness, noncommutative geometry and particle physics

    CERN Document Server

    Sladkowski, J

    1994-01-01

    We investigate how exotic differential structures may reveal themselves in particle physics. The analysis is based on the A. Connes' construction of the standard model. It is shown that, if one of the copies of the spacetime manifold is equipped with an exotic differential structure, compact object of geometric origin may exist even if the spacetime is topologically trivial. Possible implications are discussed. An SU(3)\\otimes SU(2)\\otimes U(1) gauge model is constructed. This model may not be realistic but it shows what kind of physical phenomena might be expected due to the existence of exotic differential structures on the spacetime manifold.

  20. Elementary particle physics in a nutshell

    CERN Document Server

    Tully, Christopher C

    2011-01-01

    The new experiments underway at the Large Hadron Collider at CERN in Switzerland may significantly change our understanding of elementary particle physics and, indeed, the universe. This textbook provides a cutting-edge introduction to the field, preparing first-year graduate students and advanced undergraduates to understand and work in LHC physics at the dawn of what promises to be an era of experimental and theoretical breakthroughs. Christopher Tully, an active participant in the work at the LHC, explains some of the most recent experiments in the field. But this book, which emerged fr

  1. Current experiments in elementary particle physics. Revised

    Energy Technology Data Exchange (ETDEWEB)

    Galic, H. [Stanford Univ., CA (United States). Stanford Linear Accelerator Center; Wohl, C.G.; Armstrong, B. [Lawrence Berkeley Lab., CA (United States); Dodder, D.C. [Los Alamos National Lab., NM (United States); Klyukhin, V.I.; Ryabov, Yu.G. [Inst. for High Energy Physics, Serpukhov (Russian Federation); Illarionova, N.S. [Inst. of Theoretical and Experimental Physics, Moscow (Russian Federation); Lehar, F. [CEN Saclay, Gif-sur-Yvette (France); Oyanagi, Y. [Univ. of Tokyo (Japan). Faculty of Sciences; Olin, A. [TRIUMF, Vancouver, BC (Canada); Frosch, R. [Paul Scherrer Inst., Villigen (Switzerland)

    1992-06-01

    This report contains summaries of 584 current and recent experiments in elementary particle physics. Experiments that finished taking data before 1986 are excluded. Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, KEK, LAMPF, Novosibirsk, Paul Scherrer Institut (PSI), Saclay, Serpukhov, SLAC, SSCL, and TRIUMF, and also several underground and underwater experiments. Instructions are given for remote searching of the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

  2. Particle physics software aids space and medicine

    CERN Document Server

    Pia, M G

    2002-01-01

    Geant4 is a showcase example of technology transfer from particle physics to other fields such as space and medical science. Geant4 was first used for space applications by ESA in 1999, when ESA and NASA each launched an X-ray telescope. Geant4's extended set of physics models, which handle both electromagnetic and hadronic interactions, can be used to address a range of medical applications from conventional photon-beam radiotherapy to brachytherapy (using radioactive sources), hadron therapy and boron neutron capture therapy. The tools for describing geometries, materials and electromagnetic fields can precisely model diverse real-life configurations.

  3. Current experiments in elementary particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Wohl, C.G.; Armstrong, F.E.; Trippe, T.G.; Yost, G.P. (Lawrence Berkeley Lab., CA (USA)); Oyanagi, Y. (Tsukuba Univ., Ibaraki (Japan)); Dodder, D.C. (Los Alamos National Lab., NM (USA)); Ryabov, Yu.G.; Slabospitsky, S.R. (Gosudarstvennyj Komitet po Ispol' zovaniyu Atomnoj Ehnergii SSSR, Serpukhov (USSR). Inst. Fiziki Vysokikh Ehnergij); Frosch, R. (Swiss Inst. for Nuclear Research, Villigen (Switzerla

    1989-09-01

    This report contains summaries of 736 current and recent experiments in elementary particle physics (experiments that finished taking data before 1982 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Tokyo Institute of Nuclear Studies, Moscow Institute of Theoretical and Experimental Physics, Joint Institute for Nuclear Research (Dubna), KEK, LAMPF, Novosibirsk, PSI/SIN, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground experiments. Also given are instructions for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries. Properties of the fixed-target beams at most of the laboratories are summarized.

  4. Calorimetry energy measurement in particle physics

    CERN Document Server

    Wigmans, Richard

    2017-01-01

    Particle physics is the science that pursues the age-old quest for the innermost structure of matter and the fundamental interactions between its constituents. Modern experiments in this field rely increasingly on calorimetry, a detection technique in which the particles of interest are absorbed in the detector. Calorimeters are very intricate instruments. Their performance characteristics depend on subtle, sometimes counter-intuitive design details. This book, written by one of the world's foremost experts, is the first comprehensive text on this topic. It provides a fundamental and systematic introduction to calorimetry. It describes the state of the art in terms of both the fundamental understanding of calorimetric particle detection, and the actual detectors that have been or are being built and operated in experiments. The last chapter discusses landmark scientific discoveries in which calorimetry has played an important role. This book summarizes and puts into perspective the work described in some 900...

  5. Towards the European strategy for particle physics: The briefing book

    Energy Technology Data Exchange (ETDEWEB)

    Aakesson, T. [Lund University, Lund (Sweden); Aleksan, R. [CPPM/IN2P3-CNRS and DAPNIA/CEA, Marseille (France); Allanach, B.; Webber, B. [Cambridge University and DAMTP, Cambridge (United Kingdom); Bertolucci, S. [INFN and Laboratori Nazionali di Frascati, Frascati (Italy); Blondel, A. [University of Geneva, Geneva (Switzerland); Butterworth, J. [University College London, London (United Kingdom); Cavalli-Sforza, M. [IFAE, Universitat Autonoma de Barcelona, Barcelona (Spain); Cervera, A. [University of Valencia, Valencia (Spain); Naurois, M. de [LPNHE-IN2P3-CNRS and University of Paris VI and VII, Paris (France); Desch, K. [Freiburg University, Freiburg (Germany); Egede, U. [Imperial College London, London (United Kingdom); Heuer, R. [University of Hamburg and DESY, Hamburg (Germany); Hoecker, A.; Lombardi, A.; Mangano, M. [CERN, Geneva 23 (Switzerland); Huber, P. [University of Wisconsin, Madison (United States); Jungmann, K.; Onderwater, G. [KVI, Groningen (Netherlands); Linde, F. [NIKHEF, Amsterdam (Netherlands); Mezzetto, M. [INFN and University of Padova, Padova (Italy); Palanque-Delabrouille, N. [DAPNIA, Saclay (France); Peach, K. [University of Oxford and Royal Holloway University of London, John Adams Institute, London (United Kingdom); Polosa, A. [University of Rome, La Sapienza (Italy); Rondio, E. [Soltan Institute for Nuclear Studies, Warsaw (Poland); Weiglein, G. [Durham University, IPPP, Durham (United Kingdom)

    2007-07-15

    This document was prepared as part of the briefing material for the Workshop of the CERN Council Strategy Group, held in DESY Zeuthen from 2nd to 6th May 2006. It gives an overview of the physics issues and of the technological challenges that will shape the future of the field, and incorporates material presented and discussed during the Symposium on the European Strategy for Particle Physics, held in Orsay from 30th January to 2nd February 2006, reflecting the various opinions of the European community as recorded in written submissions to the Strategy Group and in the discussions at the Symposium. (orig.)

  6. Towards the European strategy for particle physics the Briefing Book

    CERN Document Server

    Åkesson, T; Allanach, Benjamin C; Bertolucci, S; Blondel, A; Butterworth, J; Cavalli-Sforza, M; Cervera-Villanueva, Anselmo; Davidson, S; De Naurois, Mathieu; Desch, K; Egede, U; Glover, N; Heuer, R D; Huber, P; Höcker, A; Jungmann, K; Landua, Rolf; Le Goff, J M; Linde, Frank L; Lombardi, A; Mangano, Michelangelo L; Mezzetto, M; Onderwater, G; Palanque-Delabrouille, Nathalie; Peach, Kenneth J; Polosa, A; Rondio, E; Webber, Bryan R; Weiglein, G; Womersley, J; Wurr, K

    2007-01-01

    This document was prepared as part of the briefing material for the Workshop of the CERN Council Strategy Group, held in DESY Zeuthen from 2nd to 6th May 2006. It gives an overview of the physics issues and of the technological challenges that will shape the future of the field, and incorporates material presented and discussed during the Symposium on the European Strategy for Particle Physics, held in Orsay from 30th January to 2nd February 2006, reflecting the various opinions of the European community as recorded in written submissions to the Strategy Group and in the discussions at the Symposium.

  7. Recasting particle physics by entangling physics, history and philosophy

    Science.gov (United States)

    Bertozzi, Eugenio; Levrini, Olivia

    2016-05-01

    -1The paper presents the design process we followed to recast particle physics so as to make it conceptually relevant for secondary school students. In this design process, the concept of symmetry was assumed as core-idea because of its structural and foundational role in particle physics, its crosscutting character and its epistemological and philosophical value. The first draft of the materials was tested in a pilot-study which involved 19 students of a regular class (grade 13) of an Italian school. The data analysis showed that the students were in their "regime of competence" for grasping subtle nuances of the materials and for providing important hints for revising them. In particular, students' reactions brought into light the need of clarifying the "foundational" character that symmetry attained in twentieth-century physics. The delicate step of re-thinking the materials required the researchers to articulate the complex relationship between researches on physics teaching, history and philosophy of physics. This analytic phase resulted in a version of the materials which implies the students to be guided to grasp the meaning of symmetry as normative principle in twentieth-century physics, throughout the exploration of the different meanings assumed by symmetry over time. The whole process led also to the production of an essential, on-line version, of the materials targeted to a wider audience.

  8. Current experiments in elementary particle physics. Revision

    Energy Technology Data Exchange (ETDEWEB)

    Galic, H. [Stanford Linear Accelerator Center, Menlo Park, CA (United States); Armstrong, F.E. [Lawrence Berkeley Lab., CA (United States); von Przewoski, B. [Indiana Univ. Cyclotron Facility, Bloomington, IN (United States)] [and others

    1994-08-01

    This report contains summaries of 568 current and recent experiments in elementary particle physics. Experiments that finished taking data before 1988 are excluded. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, INS (Tokyo), ITEP (Moscow), IUCF (Bloomington), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several underground and underwater experiments. Instructions are given for remote searching of the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

  9. Current experiments in particle physics - particle data group

    Energy Technology Data Exchange (ETDEWEB)

    Galic, H. [Stanford Univ., CA (United States). Stanford Linear Accelerator Center; Lehar, F. [Centre d`Etudes Nucleaires de Saclay, Gif-sur-Yvette (France); Kettle, P.R. [Paul Scherrer Institute, Villigen (Switzerland)] [and others

    1996-09-01

    This report contains summaries of current and recent experiments in Particle Physics. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, Frascati, ITEP (Moscow), JINR (Dubna), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several proton decay and solar neutrino experiments. Excluded are experiments that finished taking data before 1991. Instructions are given for the World Wide Web (WWW) searching of the computer database (maintained under the SLAC-SPIRES system) that contains the summaries.

  10. USA lays out strategic vision for particle physics

    CERN Document Server

    2014-01-01

    Yesterday saw the publication of the latest P5 report in the United States. Shorthand for Particle Physics Project Prioritisation Panel, the P5 report is the US equivalent of the European Strategy update that was published last year, and it’s good to see that the two reports present a common vision of the direction our field should take over the coming years.   P5 was charged with developing a 10-year plan for US particle physics, identifying compelling scientific opportunities. Its approach was similar to the European one, based on a broad consultation among the particle physics community. For the energy frontier, the report is clear. The LHC will be the focus for the US particle physics community for the immediate and short-term future. The report goes on to lay out a bold vision for development of a unique world-class neutrino programme in the US, with the long-term focus being a reformulated Long Baseline Neutrino Facility (LBNF) hosted at Fermilab. This is a very positive deve...

  11. 5th International Heidelberg Conference on Dark Matter in Astro- and Particle Physics

    CERN Document Server

    Arnowitt, Richard; DARK 2004; Dark Matter in Astro- and Particle Physics

    2006-01-01

    The search for dark matter in the universe has established itself as one of the most exciting and central fields of astrophysics, particle physics and cosmology. The lectures and talks in this book emphasize the experimental and theoretical status and future perspectives, stressing in particular the interplay between astro- and particle physics.

  12. Quantum information and physics: Some future directions

    OpenAIRE

    Preskill, John

    2000-01-01

    I consider some promising future directions for quantum information theory that could influence the development of 21st century physics. Advances in the theory of the distinguishability of superoperators may lead to new strategies for improving the precision of quantum-limited measurements. A better grasp of the properties of multi-partite quantum entanglement may lead to deeper understanding of strongly-coupled dynamics in quantum many-body systems, quantum field theory, and quantum gravity.

  13. PREFACE: International Conference on Particle Physics and Astrophysics (ICPPA-2015)

    Science.gov (United States)

    2016-02-01

    The International Conference on Particle Physics and Astrophysics (ICPPA-2015) was held in Moscow, Russia, from October 5 to 10, 2015. The conference is organized by Center of Fundamental Research and Particle Physics of National Research Nuclear University ''MEPhI''. The aim of the Conference is to promote contacts between scientists and development of new ideas in fundamental research. We bring together experts and young scientists working on experimental and theoretical aspects of nuclear, particle, astroparticle physics and cosmology. The conference covers a wide range of topics such as accelerator physics, (astro) particle physics, cosmic rays, cosmology and methods of experimental physics - detectors and instruments. These directions are unified by development of the Standard Model (SM) which is evidently not complete. There are deviations from the Standard Model - neutrino oscillations, the dark matter existence. Together with strong interactions, they are main subjects of the Conference. New results from LHC collider as well as its future upgrade are discussed with the Higgs as the main point for discussion. Substantial development of experimental tools for astrophysical observations and new results from cosmic ray experiments is one of the main subjects of the conference. Various aspects of strong interaction are discussed. Among them: Charmonium and Bottomonium states, Flavor physics at Super B factories, Exotic Nuclei in Astrophysics. Another subject for discussion is the neutrino physics, promising and unique way to get new knowledge. In this content, several talks on BOREXINO experiment where new results in neutrino oscillations are presented. Special session is devoted to PAMELA experiment - 9 years in orbit and to the future GAMMA-400 gamma-ray telescope with following main scientific goals: indirect dark matter origin study by the gamma-ray astronomy methods, discrete astrophysical sources observations, diffuse background γ-emission analysis

  14. The physical basis and future of radiation therapy

    Science.gov (United States)

    Bortfeld, T; Jeraj, R

    2011-01-01

    The remarkable progress in radiation therapy over the last century has been largely due to our ability to more effectively focus and deliver radiation to the tumour target volume. Physics discoveries and technology inventions have been an important driving force behind this progress. However, there is still plenty of room left for future improvements through physics, for example image guidance and four-dimensional motion management and particle therapy, as well as increased efficiency of more compact and cheaper technologies. Bigger challenges lie ahead of physicists in radiation therapy beyond the dose localisation problem, for example in the areas of biological target definition, improved modelling for normal tissues and tumours, advanced multicriteria and robust optimisation, and continuous incorporation of advanced technologies such as molecular imaging. The success of physics in radiation therapy has been based on the continued “fuelling” of the field with new discoveries and inventions from physics research. A key to the success has been the application of the rigorous scientific method. In spite of the importance of physics research for radiation therapy, too few physicists are currently involved in cutting-edge research. The increased emphasis on more “professionalism” in medical physics will tip the situation even more off balance. To prevent this from happening, we argue that medical physics needs more research positions, and more and better academic programmes. Only with more emphasis on medical physics research will the future of radiation therapy and other physics-related medical specialties look as bright as the past, and medical physics will maintain a status as one of the most exciting fields of applied physics. PMID:21606068

  15. Essay: the tau lepton and thirty years of changes in elementary particle physics research.

    Science.gov (United States)

    Perl, M L

    2008-02-22

    Starting with the 1975 discovery of the tau lepton, I look back on the last three decades of change in the substance and style of experimental and theoretical research in elementary particle physics. I recount the major accomplishments of those decades and predict a bright future for particle physics in the next two decades. Turning to three problems, I lament the change in theoretical style and taste, I discuss the growth in the complexity, size, and cost of particle physics experiments, and I conclude with a pessimistic comment on the size of particle physics collaborations.

  16. The engineering needed for particle physics

    CERN Document Server

    Myers, S

    2011-01-01

    To be published soon. Lord Rutherford was the ‘god-father’ of accelerators; he challenged future generations of accelerator builders to invent reliable machines which could accelerate particles to higher and higher energies. In his inaugural presidential address to the Royal Society in London in 1928, he said ‘I have long hoped for a source of positive particles more energetic than those emitted from natural radioactive substances’. This was the start of a long quest for the production of high energy beams of particles in a very controlled way. Particle accelerators and detectors of today are among the most complicated and expensive scientific instruments ever built by mankind and they exploit every aspect of today’s cutting edge technologies and engineering. In many cases accelerator needs have been the driving force behind these new technologies; necessity being the mother of invention. In this paper I will try to give an overview of the engineering requirements for construction and operation of m...

  17. Summary of the particle physics and technology working group

    Energy Technology Data Exchange (ETDEWEB)

    Stephan Lammel et al.

    2002-12-10

    Progress in particle physics has been tightly related to technological advances during the past half century. Progress in technologies has been driven in many cases by the needs of particle physics. Often, these advances have benefited fields beyond particle physics: other scientific fields, medicine, industrial development, and even found commercial applications. The particle physics and technology working group of Snowmass 2001 reviewed leading-edge technologies recently developed or in the need of development for particle physics. The group has identified key areas where technological advances are vital for progress in the field, areas of opportunities where particle physics may play a principle role in fostering progress, and areas where advances in other fields may directly benefit particle physics. The group has also surveyed the technologies specifically developed or enhanced by research in particle physics that benefit other fields and/or society at large.

  18. World's particle physics laboratories join to create new communication resource

    CERN Multimedia

    2003-01-01

    "The worldwide particle physics community today (August 12) launched Interactions.org, a new global, Web-based resource developed to provide news, high-quality imagery, video and other tools for communicating the science of particle physics" (1 page).

  19. Updating Europe’s strategy for particle physics

    CERN Multimedia

    2012-01-01

    These have been an important two weeks for particle physics in Europe and at CERN. From 10-12 September, some 500 physicists went to Krakow to discuss their wishes for the future of the field as input to the CERN Council’s strategy group.   The strategy group is tasked with updating the European Strategy for Particle Physics adopted by Council in 2006, taking into account developments in the field over the last six years. Discussions were wide ranging, and included input from the Americas and Asia. These were particularly important, since it’s vital for the field that Europe’s strategy is in synch with what’s happening elsewhere in the world. I hardly need to tell you that the years since 2006 have seen monumental changes in particle physics, notably the discovery by ATLAS and CMS of a particle consistent with the Higgs boson. But it’s not only the high-energy frontier of the LHC that has provided new results. There have been important advanc...

  20. The Underlying Physics in Wetted Particle Collisions

    Science.gov (United States)

    Donahue, Carly; Hrenya, Christine; Davis, Robert

    2008-11-01

    Wetted granular particles are relevant in many industries including the pharmaceutical and chemical industries and has applications to granulation, filtration, coagulation, spray coating, drying and pneumatic transport. In our current focus, we investigate the dynamics of a three-body normal wetted particle collision. In order to conduct collisions we use an apparatus called a ``Stokes Cradle,'' similar to the Newton's Cradle (desktop toy) except that the target particles are covered with oil. Here, we are able to vary the oil thickness, oil viscosity, and material properties. With a three particle collision there are four possible outcomes: fully agglomerated (FA); Newton's Cradle (NC), the striker and the first target ball are agglomerated and the last target ball is separated; Reverse Newton's Cradle (RNC), the striker is separated and the two targets are agglomerated; and fully separated (FS). Varying the properties of the collisions, we have observed all four outcomes. We use elastohydrodynamics as a theoretical basis for modeling the system. We also have considered the glass transition of the oil as the pressure increases upon impact and the cavitation of the oil as the pressure drops below the vapor pressure upon rebound. A toy model has been developed where the collision is modeled as a series of two-body collisions. A qualitative agreement between the toy model and experiments gives insight into the underlying physics.

  1. Particle Physics And Cosmology In Supersymmetric Models

    CERN Document Server

    Morrissey, D E

    2005-01-01

    The Standard Model (SM) of particle physics provides an excellent description of the elementary particle interactions observed in particle collider experiments, but the model does less well when it is applied to cosmology. Recent measurements of the Universe over very large distances indicate the existence of non-luminous dark matter and an excess of baryons over anti-baryons. The SM is unable to account for either of these results, implying that an extension of the SM description is needed. One such extension is supersymmetry. Within the minimal supersymmetric version of the SM, the MSSM, the lightest superpartner particle can make up the dark matter, and the baryon asymmetry can be generated by the mechanism of electroweak baryogenesis (EWBG). In this work, we examine these issues together in order to find out whether the MSSM can account for both of them simultaneously. We find that the MSSM can explain both the baryon asymmetry and the dark matter, but only over a very constrained region of the model para...

  2. Open Access Publishing in Particle Physics

    CERN Document Server

    2007-01-01

    Particle Physics, often referred to as High Energy Physics (HEP), spearheaded the Open Access dissemination of scientific results with the mass mailing of preprints in the pre-Web era and with the launch of the arXiv preprint system at the dawn of the '90s. The HEP community is now ready for a further push to Open Access while retaining all the advantages of the peerreview system and, at the same time, bring the spiralling cost of journal subscriptions under control. I will present a plan for the conversion to Open Access of HEP peer-reviewed journals, through a consortium of HEP funding agencies, laboratories and libraries: SCOAP3 (Sponsoring Consortium for Open Access Publishing in Particle Physics). SCOAP3 will engage with scientific publishers towards building a sustainable model for Open Access publishing, which is as transparent as possible for HEP authors. The current system in which journals income comes from subscription fees is replaced with a scheme where SCOAP3 compensates publishers for the costs...

  3. Strange Particles and Heavy Ion Physics

    Energy Technology Data Exchange (ETDEWEB)

    Bassalleck, Bernd [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Physics and Astronomy; Fields, Douglas [Univ. of New Mexico, Albuquerque, NM (United States). Dept. of Physics and Astronomy

    2016-04-28

    This very long-running grant has supported many experiments in nuclear and particle physics by a group from the University of New Mexico. The gamut of these experiments runs from many aspects of Strangeness Nuclear Physics, to rare Kaon decays, to searches for exotic Hadrons such as Pentaquark or H-Dibaryon, and finally to Spin Physics within the PHENIX collaboration at RHIC. These experiments were performed at a number of laboratories worldwide: first and foremost at Brookhaven National Lab (BNL), but also at CERN, KEK, and most recently at J-PARC. In this Final Technical Report we summarize progress and achievements for this award since our last Progress Report, i.e. for the period of fall 2013 until the award’s termination on November 30, 2015. The report consists of two parts, representing our two most recent experimental efforts, participation in the Nucleon Spin Physics program of the PHENIX experiment at RHIC, the Relativistic Heavy Ion Collider at BNL – Task 1, led by Douglas Fields; and participation in several Strangeness Nuclear Physics experiments at J-PARC, the Japan Proton Accelerator Research Center in Tokai-mura, Japan – Task 2, led by Bernd Bassalleck.

  4. Tests of the particle physics-physical cosmology interface

    Energy Technology Data Exchange (ETDEWEB)

    Schramm, D.N. [Chicago Univ., IL (United States)]|[Fermi National Accelerator Lab., Batavia, IL (United States)

    1993-01-01

    Three interrelated interfaces of particle physics and physical cosmology are discussed: (1) inflation and other phase transitions; (2) Big Bang Nucleosynthesis (and also the quark-hadron transition); and (3) structure formation (including dark matter). Recent observations that affect each of these topics are discussed. Topic number 1 is shown to be consistent with the COBE observations but not proven and it may be having problems with some age-expansion data. Topic number 2 has now been well-tested and is an established ``pillar`` of the Big Bang. Topic number 3 is the prime arena of current physical cosmological activity. Experiments to resolve the current exciting, but still ambiguous, situation following the COBE results are discussed.

  5. Tests of the particle physics-physical cosmology interface

    Energy Technology Data Exchange (ETDEWEB)

    Schramm, D.N. (Chicago Univ., IL (United States) Fermi National Accelerator Lab., Batavia, IL (United States))

    1993-01-01

    Three interrelated interfaces of particle physics and physical cosmology are discussed: (1) inflation and other phase transitions; (2) Big Bang Nucleosynthesis (and also the quark-hadron transition); and (3) structure formation (including dark matter). Recent observations that affect each of these topics are discussed. Topic number 1 is shown to be consistent with the COBE observations but not proven and it may be having problems with some age-expansion data. Topic number 2 has now been well-tested and is an established pillar'' of the Big Bang. Topic number 3 is the prime arena of current physical cosmological activity. Experiments to resolve the current exciting, but still ambiguous, situation following the COBE results are discussed.

  6. School on Particle Physics, Gravity and Cosmology

    Science.gov (United States)

    Brandenberger, Robert

    These lectures present a brief review of inflationary cosmology, provide an overview of the theory of cosmological perturbations, and then focus on the conceptual problems of the current paradigm of early universe cosmology, thus motivating an exploration of the potential of string theory to provide a new paradigm. Specifically, the string gas cosmology model is introduced, and a resulting mechanism for structure formation which does not require a period of cosmological inflation is discussed. The School consisted of level-up courses intended for PhD students, as well as updating courses for postdocs and researchers. In addition, a few propaedeutical crash courses were organized to bridge the gaps in the attendance and to facilitate an active participation. The courses were held mostly on the blackboard. The audience was assumed to have at least a PhD student level either in phenomenological particle theory, in astroparticle physics or in field and string theory. One of the aims of the School was to bring together researchers of these different areas and to update them on one another's discipline. The School was divided in two workshops: Interface between Cosmology and Particle Physics Courses: W. GRIMUS and S. PETCOV: Neutrino Phenomenology A. MASIERO and F. FERUGLIO: Beyond the Standard Model P. ULLIO: Introduction to Dark Matter N. BILIC: Black holes phenomenology 2) Particle Physics, Gravity and String Theory Courses: R. BRANDENBERGER: Topics in Cosmology J. ZANELLI: Black holes physics C. NUNEZ: StringsGauge Correspondence A. JEVICKI: AdS/CFT G. DALL'AGATA: String vacua and moduli stabilization C. BURGESS: Cosmology and Strings G. CARDOSO: Black Holes and String Theory Seminars were held during the School: Seminars: D. DENEGRI: New physics at LHC D. WARK: Neutrino Experiments C. BACCIGALUPI: Review on Cosmological Experiments A. MUELLER: Experimental evidence of Black Holes S. LIBERATI: Astrophysical constraints on Lorentz violation In addition the following

  7. Particle Physics: A New Course for Schools and Colleges.

    Science.gov (United States)

    Swinbank, Elizabeth

    1992-01-01

    Considers questions relating to the introduction of particle physics into post-GCSE (General Certificate of Secondary Education) courses. Describes a project that is producing teacher and student materials to support the teaching of particle physics at this level. Presents a proposed syllabus for a particle physics module. (KR)

  8. Particle Physics in Intense Electromagnetic Fields

    CERN Document Server

    Kurilin, A V

    1999-01-01

    The quantum field theory in the presence of classical background electromagnetic fields is reviewed. We give a pedagogical introduction to the Feynman-Furry method of describing non-perturbative interactions with very strong electromagnetic fields. A particular emphasis is given to the case of the plane-wave electromagnetic field for which the charged particles' wave functions and propagators are presented. Some general features of quantum processes proceeding in the intense electromagnetic background are argued. We also discuss the possibilities of searching new physics through the investigations of quantum phenomena induced by the strong electromagnetic environment.

  9. Nuclear, particle and many body physics

    CERN Document Server

    Morse, Philip M; Feshbach, Herman

    2013-01-01

    Nuclear, Particle and Many Body Physics, Volume II, is the second of two volumes dedicated to the memory of physicist Amos de-Shalit. The contributions in this volume are a testament to the respect he earned as a physicist and of the warm and rich affection he commanded as a personal friend. The book contains 41 chapters and begins with a study on the renormalization of rational Lagrangians. Separate chapters cover the scattering of high energy protons by light nuclei; approximation of the dynamics of proton-neutron systems; the scattering amplitude for the Gaussian potential; Coulomb excitati

  10. A bird's eye view of particle physics

    CERN Document Server

    De Groot, E H

    1977-01-01

    Reviews recent discoveries in the field of particle physics and places them in a theoretical framework. Then shows what is to be expected from the CERN SPS, and from the Fermi laboratory in America where a machine analogous to the SPS is already in service. Better secondary beams should improve our knowledge of lepton-hadron scattering processes, thus providing information about hadron structure and also, with v-scattering, on weak interactions. More should also be learned about proton-proton scattering. (0 refs).

  11. Current Experiments in Particle Physics. 1996 Edition.

    Energy Technology Data Exchange (ETDEWEB)

    Galic, Hrvoje

    2003-06-27

    This report contains summaries of current and recent experiments in Particle Physics. Included are experiments at BEPC (Beijing), BNL, CEBAF, CERN, CESR, DESY, FNAL, Frascati, ITEP (Moscow), JINR (Dubna), KEK, LAMPF, Novosibirsk, PNPI (St. Petersburg), PSI, Saclay, Serpukhov, SLAC, and TRIUMF, and also several proton decay and solar neutrino experiments. Excluded are experiments that finished taking data before 1991. Instructions are given for the World Wide Web (WWW) searching of the computer database (maintained under the SLAC-SPIRES system) that contains the summaries.

  12. (Medium energy particle physics): Annual progress report

    Energy Technology Data Exchange (ETDEWEB)

    Nefkens, B.M.K.

    1985-10-01

    Investigations currently carried out by the UCLA Particle Physics Research Group can be arranged into four programs: Pion-Nucleon Scattering; Tests of Charge Symmetry and Isospin Invariance; Light Nuclei (Strong Form Factors of /sup 3/H, /sup 3/He, /sup 4/He; Detailed Balance in pd /r reversible/ /gamma//sup 3/H; Interaction Dynamics); and Search for the Rare Decay /Mu//sup +/ /yields/ e/sup +/ + /gamma/ (MEGA). The general considerations which led to the choice of physics problems investigated by our group are given in the next section. We also outline the scope of the research being done which includes over a dozen experiments. The main body of this report details the research carried out in the past year, the status of various experiments, and new projects.

  13. Particle physics in the very early universe

    Science.gov (United States)

    Schramm, D. N.

    1981-01-01

    Events in the very early big bang universe in which elementary particle physics effects may have been dominant are discussed, with attention to the generation of a net baryon number by way of grand unification theory, and emphasis on the possible role of massive neutrinos in increasing current understanding of various cosmological properties and of the constraints placed on neutrino properties by cosmology. It is noted that when grand unification theories are used to describe very early universe interactions, an initially baryon-symmetrical universe can evolve a net baryon excess of 10 to the -9th to 10 to the -11th per photon, given reasonable parameters. If neutrinos have mass, the bulk of the mass of the universe may be in the form of leptons, implying that the form of matter most familiar to physical science may not be the dominant form of matter in the universe.

  14. Higgs Physics at Future Colliders recent theoretical developments

    CERN Document Server

    Djouadi, A

    2004-01-01

    I review the physics of the Higgs sector in the Standard Model and its minimal supersymmetric extension, the MSSM. I will discuss the prospects for discovering the Higgs particles at the upgraded Tevatron, at the Large Hadron Collider, and at a future high--energy $e^+e^-$ linear collider with centre--of--mass energy in the 350--800 GeV range, as well as the possibilities for studying their fundamental properties. Some emphasis will be put on the theoretical developments which occurred in the last two years.

  15. Higgs physics at future colliders: Recent theoretical developments

    Indian Academy of Sciences (India)

    Abdelhak Djouadi

    2004-02-01

    I review the physics of the Higgs sector in the standard model and its minimal supersymmetric extension, the MSSM. I will discuss the prospects for discovering the Higgs particles at the ungraded Tevatron, at the large hadron collider, and at a future high-energy $e^{+}e^{-}$ linear collider with centre-of-mass energy in the 350-800 GeV range, as well as the possibilities for studying their fundamental properties. Some emphasis will be put on the theoretical developments which occurred in the last two years.

  16. Review of instrumentation for observational particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Yoichiro, E-mail: suzuki@suketto.icrr.u-tokyo.ac.j [Kamioka Observatory, Institute for Cosmic Ray Research, University of Tokyo, Kamioka-Cho, Hida (Japan); Kamioka Satellite, Institute for the Mathematics and Physics of the Universe, University of Tokyo (Japan)

    2010-11-01

    Particle experiments that do not use the accelerator beams (observational particle experiments) have become important subjects recently. We have reviewed the detector for the observational particle experiments.

  17. Cosmology, physics of particles and nuclei

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-07-01

    A recent trend, already noted in the previous activity report, is the cross-fertilization between cosmology and high-energy physics, with some twenty research articles at this interface in the last 2 years. Results are presented along 3 main directions. 1) Cosmology and astro-particle physics. One may quote among others: the idea that dark matter may not be as weakly interacting as previously thought; a general study of the growth of small perturbations in the context of higher-dimensional theories; a possible explanation of the smallness of the cosmological constant through violation of Lorentz invariance in the gravity sector. In the field of observational cosmology, a 3-point correlation has been detected for the first time using gravitational lensing experiments. 2) Particle physics beyond the standard model. New developments in this field are triggered by progress on both experimental and theoretical sides. The first unambiguous observation of neutrino oscillations implies that neutrinos have non-zero masses. The constraints imposed by existing data on models based on the seesaw mechanism have been studied. The 'de-construction' of supersymmetric theories, inspired by recent advances in higher-dimensional theories, leads to a parameter-free prediction for the mass of the Higgs boson. 3) Strong interactions. Experiments at Hera have triggered new studies of hadronic interactions in the regime of high parton densities, which is also the high-energy limit for QCD: the phenomenon of 'parton saturation' is expected to occur. QCD calculations have been applied to various observables: jet physics, diffractive processes at Hera and in collider experiments, and multiplicity correlations in phase space. (A.C.)

  18. Academic Training: Neutrino Physics, Present and Future

    CERN Multimedia

    2006-01-01

    2006-2007 ACADEMIC TRAINING PROGRAMME LECTURE SERIES 27, 28, 29, 30 November, 1st December, from 11:00 to 12:00 - TH Auditorium, bldg 4 - 3 - 006 Neutrino Physics, Present and Future B. KAYSER / Fermilab, USA Our understanding of neutrinos has been revolutionized by the discovery that they have nonzero masses and very large mixing. We will explain the phenomenology of massive neutrinos, including neutrino oscillation in vacuum and in matter, and the physics of neutrinos that are their own antiparticles. We will review the evidence for neutrino masses and mixing, and summarize what has been learned about the neutrinos so far. Identifying the very interesting open questions raised by the discovery of neutrino mass, we will discuss how these questions may be answered through future experiments. Finally, we will consider the possibility that CP violation by neutrinos is the key to understanding the matter-antimatter asymmetry of the universe, and discuss the see-saw theory of why neutrino masses are so tiny....

  19. Academic Training: Neutrino Physics, Present and Future

    CERN Multimedia

    2006-01-01

    2006-2007 ACADEMIC TRAINING PROGRAMME LECTURE SERIES 27, 28, 29, 30 November, 1st December, from 11:00 to 12:00 - TH Auditorium, bldg 4 - 3 - 006 Neutrino Physics, Present and Future B. KAYSER, Fermilab, USA Our understanding of neutrinos has been revolutionized by the discovery that they have nonzero masses and very large mixing. We will explain the phenomenology of massive neutrinos, including neutrino oscillation in vacuum and in matter, and the physics of neutrinos that are their own antiparticles. We will review the evidence for neutrino masses and mixing, and summarize what has been learned about the neutrinos so far. Identifying the very interesting open questions raised by the discovery of neutrino mass, we will discuss how these questions may be answered through future experiments. Finally, we will consider the possibility that CP violation by neutrinos is the key to understanding the matter-antimatter asymmetry of the universe, and discuss the see-saw theory of why neutrino masses are so tiny....

  20. Perspectives on future high energy physics

    Energy Technology Data Exchange (ETDEWEB)

    Samios, N.P.

    1996-12-31

    The author states two general ways in which one must proceed in an attempt to forecast the future of high energy physics. The first is to utilize the state of knowledge in the field and thereby provide theoretical and experimental guidance on future directions. The second approach is technical, namely, how well can one do in going to higher energies with present techniques or new accelerator principles. He concludes that the future strategy is straightforward. The present accelerator facilities must be upgraded and run to produce exciting and forefront research. At the same time, the theoretical tools should be sharpened both extrapolating from lower energies (100 GeV) to high (multi TeV) and vice versa. The US should be involved in the LHC, both in the accelerator and experimental areas. There should be an extensive R and D program on accelerators for a multi-TeV capability, emphasizing e{sup +}e{sup {minus}} and {mu}{sup +}{mu}{sup {minus}} colliders. Finally, the international cooperative activities should be strengthened and maintained.

  1. Research in particle physics. [Dept. of Physics, Boston Univ

    Energy Technology Data Exchange (ETDEWEB)

    Whitaker, Scott J.

    1992-09-01

    Research accomplishments and current activities of Boston University researchers in high energy physics are presented. Principal areas of activity include the following: detectors for studies of electron[endash]positron annihilation in colliding beams; advanced accelerator component design, including the superconducting beam inflector, electrostatic quadrupoles, and the electrostatic muon kicker''; the detector for the MACRO (Monopole, Astrophysics, and Cosmic Ray Observatory) experiment; neutrino astrophysics and the search for proton decay; theoretical particle physics (electroweak and flavor symmetry breaking, hadron collider phenomenology, cosmology and astrophysics, new field-theoretic models, nonperturbative investigations of quantum field theories, electroweak interactions); measurement of the anomalous magnetic moment of the muon; calorimetry for the GEM experiment; and muon detectors for the GEM experiment at the Superconducting Super Collider.

  2. Experimental particle physics. [Dept. of Physics, Drexel Univ

    Energy Technology Data Exchange (ETDEWEB)

    Steinberg, R.I.; Lane, C.E.

    1992-09-01

    The goals of this research are the experimental testing of fundamental theories of physics beyond the standard model and the exploration of cosmic phenomena through the techniques of particle physics. We are working on the MACRO experiment, which employs a large-area underground detector to search fore grand unification magnetic monopoles and dark matter candidates and to study cosmic ray muons as well as low- and high-energy neutrinos; the Chooz experiment to search for reactor neutrino oscillations at a distance of 1 km from the source; a new proposal (the Perry experiment) to construct a one-kiloton liquid scintillator in the Fairport, Ohio underground facility IMB to study neutrino oscillations with a 13 km baseline; and development of technology for improved liquid scintillators and for very-low-background materials in support of the MACRO and Perry experiments and for new solar neutrino experiments.

  3. Cherenkov light imaging in astro-particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Mirzoyan, Razmik, E-mail: Razmik.Mirzoyan@mpp.mpg.de

    2014-12-01

    Cherenkov light emission plays a key role in contemporary science; it is widely used in high energy, nuclear, and numerous astro-particle physics experiments. Most astro-particle physics experiments are based on the detection of light, and a vast majority of them on the measurement of Cherenkov light. Cherenkov light emission is measured in gases (used in air-Cherenkov technique), in water (for example, neutrino experiments BAIKAL, Super-Kamiokande, NESTOR, ANTARES, future KM3NeT; cosmic and γ-ray experiments Milagro, HAWC, AUGER) and in ice (IceCube). In this report our goal is not limited to simply listing the multitude of experiments that are based on using Cherenkov emission, but we will clarify the reasons making this emission so important and so frequently used. For completeness we will first give a short historical overview on the discovery and evolution of Cherenkov emission and then we will dwell on its main features and numerous applications in astro-particle physics experiments. - Highlights: • We explain why Cherenkov emission is so important and why it is so widely used. • A brief historical excursion is made to the very beginning of Cherenkov emission. • Imaging of the Cherenkov light emission is discussed in a great detail. • The principle of Cherenkov light imaging in diverse experiments is the same.

  4. Cherenkov light imaging in astro-particle physics

    Science.gov (United States)

    Mirzoyan, Razmik

    2014-12-01

    Cherenkov light emission plays a key role in contemporary science; it is widely used in high energy, nuclear, and numerous astro-particle physics experiments. Most astro-particle physics experiments are based on the detection of light, and a vast majority of them on the measurement of Cherenkov light. Cherenkov light emission is measured in gases (used in air-Cherenkov technique), in water (for example, neutrino experiments BAIKAL, Super-Kamiokande, NESTOR, ANTARES, future KM3NeT; cosmic and γ-ray experiments Milagro, HAWC, AUGER) and in ice (IceCube). In this report our goal is not limited to simply listing the multitude of experiments that are based on using Cherenkov emission, but we will clarify the reasons making this emission so important and so frequently used. For completeness we will first give a short historical overview on the discovery and evolution of Cherenkov emission and then we will dwell on its main features and numerous applications in astro-particle physics experiments.

  5. Matter and Interactions: A Particle Physics Perspective

    Science.gov (United States)

    Organtini, Giovanni

    2011-01-01

    In classical mechanics, matter and fields are completely separated; matter interacts with fields. For particle physicists this is not the case; both matter and fields are represented by particles. Fundamental interactions are mediated by particles exchanged between matter particles. In this article we explain why particle physicists believe in…

  6. Research in theoretical and elementary particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Mitselmakher, G. [Univ. of Florida, Gainesville, FL (United States)

    1996-12-01

    In 1995 the University of Florida started a major expansion of the High Energy Experimental Physics group (HEE) with the goal of adding four new faculty level positions to the group in two years. This proposal covers the second year of operation of the new group and gives a projection of the planned research program for the next five years, when the group expects their activities to be broader and well defined. The expansion of the HEE group started in the Fall of 1995 when Guenakh Mitselmakher was hired from Fermilab as a Full Professor. A search was then performed for two junior faculty positions. The first being a Research Scientist/Scholar position which is supported for 9 months by the University on a faculty line at the same level as Assistant Professor but without the teaching duties. The second position is that of an Assistant Professor. The search has been successfully completed and Jacobo Konigsberg from Harvard University has accepted the position of Research Scientist and Andrey Korytov from MIT has accepted the position of Assistant Professor. They will join the group in August 1996. The physics program for the new group is focused on hadron collider physics. G. Mitselmakher has been leading the CMS endcap muon project since 1994. A Korytov is the coordinator of the endcap muon chamber effort for CMS and a member of the CDF collaboration and J. Konigsberg is a member of CDF where he has participated in various physics analyses and has been coordinator of the gas calorimetry group. The group at the U. of Florida has recently been accepted as an official collaborating institution on CDF. They have been assigned the responsibility of determining the collider beam luminosity at CDF and they will also be an active participant in the design and operation of the muon detectors for the intermediate rapidity region. In addition they expect to continue their strong participation in the present and future physics analysis of the CDF data.

  7. Probability and statistics for particle physics

    CERN Document Server

    Mana, Carlos

    2017-01-01

    This book comprehensively presents the basic concepts of probability and Bayesian inference with sufficient generality to make them applicable to current problems in scientific research. The first chapter provides the fundamentals of probability theory that are essential for the analysis of random phenomena. The second chapter includes a full and pragmatic review of the Bayesian methods that constitute a natural and coherent framework with enough freedom to analyze all the information available from experimental data in a conceptually simple manner. The third chapter presents the basic Monte Carlo techniques used in scientific research, allowing a large variety of problems to be handled difficult to tackle by other procedures. The author also introduces a basic algorithm, which enables readers to simulate samples from simple distribution, and describes useful cases for researchers in particle physics.The final chapter is devoted to the basic ideas of Information Theory, which are important in the Bayesian me...

  8. Exceptional quantum geometry and particle physics

    Science.gov (United States)

    Dubois-Violette, Michel

    2016-11-01

    Based on an interpretation of the quark-lepton symmetry in terms of the unimodularity of the color group SU (3) and on the existence of 3 generations, we develop an argumentation suggesting that the "finite quantum space" corresponding to the exceptional real Jordan algebra of dimension 27 (the Euclidean Albert algebra) is relevant for the description of internal spaces in the theory of particles. In particular, the triality which corresponds to the 3 off-diagonal octonionic elements of the exceptional algebra is associated to the 3 generations of the Standard Model while the representation of the octonions as a complex 4-dimensional space C ⊕C3 is associated to the quark-lepton symmetry (one complex for the lepton and 3 for the corresponding quark). More generally it is suggested that the replacement of the algebra of real functions on spacetime by the algebra of functions on spacetime with values in a finite-dimensional Euclidean Jordan algebra which plays the role of "the algebra of real functions" on the corresponding almost classical quantum spacetime is relevant in particle physics. This leads us to study the theory of Jordan modules and to develop the differential calculus over Jordan algebras (i.e. to introduce the appropriate notion of differential forms). We formulate the corresponding definition of connections on Jordan modules.

  9. Exceptional quantum geometry and particle physics

    Directory of Open Access Journals (Sweden)

    Michel Dubois-Violette

    2016-11-01

    Full Text Available Based on an interpretation of the quark–lepton symmetry in terms of the unimodularity of the color group SU(3 and on the existence of 3 generations, we develop an argumentation suggesting that the “finite quantum space” corresponding to the exceptional real Jordan algebra of dimension 27 (the Euclidean Albert algebra is relevant for the description of internal spaces in the theory of particles. In particular, the triality which corresponds to the 3 off-diagonal octonionic elements of the exceptional algebra is associated to the 3 generations of the Standard Model while the representation of the octonions as a complex 4-dimensional space C⊕C3 is associated to the quark–lepton symmetry (one complex for the lepton and 3 for the corresponding quark. More generally it is suggested that the replacement of the algebra of real functions on spacetime by the algebra of functions on spacetime with values in a finite-dimensional Euclidean Jordan algebra which plays the role of “the algebra of real functions” on the corresponding almost classical quantum spacetime is relevant in particle physics. This leads us to study the theory of Jordan modules and to develop the differential calculus over Jordan algebras (i.e. to introduce the appropriate notion of differential forms. We formulate the corresponding definition of connections on Jordan modules.

  10. The methodological problems of particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Unzicker, Alexander [Pestalozzi-Gymnasium Muenchen (Germany)

    2013-07-01

    While the so-called standard model has been the dominating paradigm in particle physics for almost half a century, most researchers working with it would admit that it is an incomplete theory at best. Despite some ordering schemes, the overall number of its free parameters has greatly increased over the years, often accompanied by ad-hoc hypotheses such as 'confinement'. Experimentally, the interpretation of today's collider experiments requires sophisticated modeling of huge backgrounds. Specific problems are here how to remove correctly radiation damping (given that no consistent theory of electrodynamics exists), and postulating lifetimes (top quark) during which the particle cannot even leave the collision region. The standard model is about to develop new concepts, such as additional neutrino flavors and oscillations, while disregarding elementary questions such as to the nature of mass. From a historical perspective, the growing complications are likely to be symptoms of a scientific crisis, a phenomenon which has been described by the philosopher Thomas Kuhn. According to Kuhn however, there is no smooth transition from one paradigm to another. The only reasonable way to go beyond the standard model would be to abandon it completely.

  11. Hawking radiation a particle physics perspective

    CERN Document Server

    Visser, M

    1993-01-01

    It has recently become fashionable to regard black holes as elementary particles. By taking this suggestion seriously it is possible to cobble together an elementary particle physics based estimate for the decay rate $(\\hbox{black hole})_i \\to (\\hbox{black hole})_f + (\\hbox{massless quantum})$. This estimate of the spontaneous emission rate contains two free parameters which may be fixed by demanding that the high energy end of the spectrum of emitted quanta match a blackbody spectrum at the Hawking temperature. The calculation, though technically trivial, has important conceptual implications: (1) The existence of Hawking radiation from black holes is ultimately dependent only on the fact that massless quanta (and all other forms of matter) couple to gravity. (2) The thermal nature of the Hawking spectrum depends only on the fact that the number of internal states of a large mass black hole is enormous. (3) Remarkably, the resulting formula for the decay rate gives meaningful answers even when extrapolated t...

  12. Particle astronomy and particle physics from the moon - The particle observatory

    Science.gov (United States)

    Wilson, Thomas L.

    1990-01-01

    Promising experiments from the moon using particle detectors are discussed, noting the advantage of the large flux collecting power Pc offered by the remote, stable environment of a lunar base. An observatory class of particle experiments is presented, based upon proposals at NASA's recent Stanford workshop. They vary from neutrino astronomy, particle astrophysics, and cosmic ray experiments to space physics and fundamental physics experiments such as proton decay and 'table-top' arrays. This research is background-limited on earth, and it is awkward and unrealistic in earth orbit, but is particularly suited for the moon where Pc can be quite large and the instrumentation is not subject to atmospheric erosion as it is (for large t) in low earth orbit.

  13. Particle Physics in a Season of Change

    Energy Technology Data Exchange (ETDEWEB)

    Quigg, Chris

    2012-02-01

    A digest of the authors opening remarks at the 2011 Hadron Collider Physics Symposium. I have chosen my title to reflect the transitions we are living through, in particle physics overall and in hadron collider physics in particular. Data-taking has ended at the Tevatron, with {approx} 12 fb{sup -1} of {bar p}p interactions delivered to CDF and D0 at {radical}s = 1.96 TeV. The Large Hadron Collider has registered a spectacular first full-year run, with ATLAS and CMS seeing > 5 fb{sup -1}, LHCb recording {approx} 1 fb{sup -1}, and ALICE logging nearly 5 pb{sup -1} of pp data at {radical}s = 7 TeV, plus a healthy dose of Pb-Pb collisions. The transition to a new energy regime and new realms of instantaneous luminosity exceeding 3.5 x 10{sup 33} cm{sup -2} s{sup -1} has brought the advantage of enhanced physics reach and the challenge of pile-up reaching {approx} 15 interactions per beam crossing. I am happy to record that what the experiments have (not) found so far has roused some of my theoretical colleagues from years of complacency and stimulated them to think anew about what the TeV scale might hold. We theorists have had plenty of time to explore many proposals for electroweak symmetry breaking and for new physics that might lie beyond established knowledge. With so many different theoretical inventions in circulation, it is in the nature of things that most will be wrong. Keep in mind that we learn from what experiment tells us is not there, even if it is uncommon to throw a party for ruling something out. Some non-observations may be especially telling: the persistent absence of flavor-changing neutral currents, for example, seems to me more and more an important clue that we have not yet deciphered. It is natural that the search for the avatar of electroweak symmetry breaking preoccupies participants and spectators alike. But it is essential to conceive the physics opportunities before us in their full richness. I would advocate a three-fold approach

  14. Particle Physics on the Eve of Lhc

    Science.gov (United States)

    Studenikin, Alexander I.

    2009-01-01

    Fundamentals of particle physics. The quantum number of color, colored quarks and dynamic models of Hadrons composed of quasifree quarks / V. Matveev, A. Tavkhelidze. Discovery of the color degree of freedom in particle physics: a personal perspective / O. W. Greenberg. The evolution of the concepts of energy, momentum, and mass from Newton and Lomonosov to Einstein and Feynman / L. Okun -- Physics at accelerators and studies in SM and beyond. Search for new physics at LHC (CMS) / N. Krasnikov. Measuring the Higgs Boson(s) at ATLAS / C. Kourkoumelis. Beyond the standard model physics reach of the ATLAS experiment / G. Unel. The status of the International Linear Collider / B. Foster. Review of results of the electron-proton collider HERA / V. Chekelian. Recent results from the Tevatron on CKM matrix elements from Bs oscillations and single top production, and studies of CP violation in Bs Decays / J. P. Fernández. Direct observation of the strange b Barion [symbol] / L. Vertogradov. Search for new physics in rare B Decays at LHCb / V. Egorychev. CKM angle measurements at LHCb / S. Barsuk. Collider searches for extra spatial dimensions and black holes / G. Landsberg -- Neutrino Physics. Results of the MiniBooNE neutrino oscillation experiment / Z. Djurcic. MINOS results and prospects / J. P. Ochoa-Ricoux. The new result of the neutrino magnetic moment measurement in the GEMMA experiment / A. G. Beda ... [et al.]. The Baikal neutrino experiment: status, selected physics results, and perspectives / V. Aynutdinov ... [et al.]. Neutrino telescopes in the deep sea / V. Flaminio. Double beta decay: present status / A. S. Barabash. Beta-beams / C. Volpe. T2K experiment / K. Sakashita. Non-standard neutrino physics probed by Tokai-to-Kamioka-Korea two-detector complex / N. Cipriano Ribeiro ... [et al.]. Sterile neutrinos: from cosmology to the LHC / F. Vannucci. From Cuoricino to Cuore towards the inverted hierarchy region / C. Nones. The MARE experiment: calorimetric

  15. New HEPAP report outlines revolution in particle physics

    CERN Multimedia

    2004-01-01

    "The most compelling questions facing contemporary particle physics research and a program to address them have been distilled into a new report “Quantum Universe: The Revolution in 21st-Century Particle Physics,” adopted today by the Department of Energy/National Science Foundation High Energy Physics Advisory Panel (HEPAP)" (1 page)

  16. Highlights from past and future physics

    CERN Multimedia

    Daisy Yuhas

    2009-01-01

    A two-day symposium was held at CERN on 3 and 4 December in celebration of the fiftieth anniversary of the Proton Synchrotron and the twentieth anniversary of LEP. The symposium, entitled “From the Proton Synchrotron to the Large Hadron Collider- 50 Years of Nobel Memories in High-Energy Physics”, included a series of seminars reflecting on the past fifty years in particle physics and an exhibition highlighting CERN’s research over this period.   Lyn Evans, LHC project leader, addressing the audience gathered in the Main Auditorium during the symposium that celebrated the 50 years of the PS and the 20 years of LEP.  The events were well attended on both days. Thursday’s reception, to which the Director-General invited everyone working at CERN, attracted over 1200 people. The seminars drew about 500 people to the Main Auditorium and the Council Chamber each day, with at least as many on-line attendees. The symposium speakers, including thirteen No...

  17. Current experiments in elementary particle physics, 1976-87

    CERN Document Server

    Lawrence Berkeley Nat. Laboratory. Berkeley

    Contains more than 1,800 experiments in elementary particle physics from the Experience database. Search and browse by author; title; experiment number or prefix; institution; date approved, started or completed; accelerator or detector; polarization, reaction, final state or particle; or by papers produced. Maintained at SLAC for the Particle Data Group. Supplies the information for Current Experiments in Particle Physics (LBL-91). Print version updated every second year.

  18. Mark Thomson presents the book "Modern Particle Physics"

    CERN Multimedia

    2013-01-01

    Tuesday 5 November 2013 at 4 p.m. in the Library, Bldg. 52 1-052 This new textbook covers all the main aspects of modern particle physics, providing a clear connection between the theory and recent experimental results, including the recent discovery of a Higgs boson and the most recent developments in neutrino physics. It provides a comprehensive and self-contained description of the Standard Model of particle physics suitable for upper-level undergraduate students and graduate students studying experimental particle physics. Physical theory is introduced in a relatively straightforward manner with step-by-step mathematical derivations. In each chapter, fully worked examples link the theory to central experimental results in contemporary particle physics. Modern Particle Physics, by Mark Thomson, Cambridge University Press, 2013, ISBN 9781107034266. *Coffee will be served from 3.30 p.m.*

  19. Geneva University: seminar of particle physics

    CERN Multimedia

    Geneva University

    2012-01-01

    Université de Genève École de physique Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 Genève 4 Tél.: (022) 379 62 73 Fax: (022) 379 69 92 Mercredi 20 juin 2012 SÉMINAIRE DE PHYSIQUE CORPUSCULAIRE 11h15 - Auditoire Stückelberg, École de physique Searches for SUSY at the LHC : status and prospects Dr Monica D’Onofrio - University of Liverpool Supersymmetry is a theory that provides an extension of the Standard Model and naturally solves the hierarchy problem by introducing supersymmetric partners of the known bosons and fermions. The ATLAS and CMS collaborations are searching for SUSY particles in several final states, exploiting at best the excellent quality of the data delivered by the LHC and recorded by the experiments. I shall review the most recent results, with prospects for near and far future. INFORMATION : http://dpnc.unige.ch/seminaire/annon...

  20. Lecture series LHC: An exciting physics future for CERN

    CERN Document Server

    2001-01-01

    All of us at CERN are working towards the same goal, a better understanding of the structure of matter, the forces which control it and thus a clearer picture of the behaviour of the entire Universe. Therefore I believe it is very important that everyone has a clear picture of the fascinating programme of physics that we can look forward to with the LHC and I have asked Professor Egil Lillestøl to give a short series of talks on this theme. Professor Lillestøl has long experience in simplifying the most complex concepts in physics and I know his talks will be both instructive and entertaining. The lectures will be targetted at people who have a scientific, engineering or technical background but are not specialists in the field of particle physics. Anyone who is curious about CERN physics and its future will find something of interest. The first lecture will be given on 31st January at 16.00 in the Main Auditorium. I encourage you all to attend. See also the lecture abstract and sche...

  1. External Meeting: Geneva University - Particle physics seminar

    CERN Document Server

    Université de Genève

    2011-01-01

    UNIVERSITE DE GENEVE Ecole de physique Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 GENEVE 4 Tél: (022) 379 62 73 Fax: (022) 379 69 92 Wednesday 22 June 2011 PARTICLE PHYSICS SEMINAR at 17.00 hrs – Stückelberg Auditorium Indication of νμ→νe appearance in the T2K experiment Indication de la transition νμ→νe dans l’expérience T2K Par Prof. Alain Blondel - DPNC, Université de Genève The T2K neutrino experiment in Japan has searched for νμ → νe appearance in data taken since the start-up in 2010 till11 March 2011. Six events pass all selection criteria at the far detector situated at 295 km while 1.5±0.3(syst.) would be expected if θ13=0 . This is equivalent to an indication of a non zero value of θ13 at a significance of 2.5σ. This process is particu...

  2. Geneva University: seminar of particle physics

    CERN Multimedia

    Geneva University

    2012-01-01

    GENEVA UNIVERSITY École de physique Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 Genève 4 Tél.: (022) 379 62 73 Fax: (022) 379 69 92 Wednesday 9 May 2012 SEMINAR OF PARTICLE PHYSICS 11h15 - Science III, Auditoire 1S081 30 The Search for the Magnetic Monopole Dr Philippe Mermod - University of Geneva, DPNC It has long been realised that the existence of a magnetic monopole would be sufficient to explain the quantisation of electric charge, and to symmetrise Maxwell's equations. Furthermore, the monopole is an essential ingredient in Grand Unification theories. Primordial monopoles would have been produced in the Early Universe and still be present today, either in cosmic rays or trapped in matter. Monopoles of accessible masses would also be pair-produced at high-energy accelerators. Their remarkable properties can be exploited to devise various means of direct detection. After reviewin...

  3. Introduction to particle and astroparticle physics questions to the Universe

    CERN Document Server

    De Angelis, Alessandro

    2015-01-01

    This book, written by researchers who had been professionals in accelerator physics before becoming leaders of groups in astroparticle physics, introduces both fields in a balanced and elementary way, requiring only a basic knowledge of quantum mechanics on the part of the reader. The early history of particle physics cannot be distinguished from the history of cosmic rays. With the advent of accelerators, however, the importance of cosmic rays in particle physics was lost. This situation persisted until the 1990s, when novel techniques allowed breakthrough discoveries, and exploration of new physics scales now requires returning to cosmic rays. The new profile of scientists in fundamental physics ideally involves the merging of knowledge in astroparticle and particle physics, but the duration of modern experiments is such that people cannot simultaneously be practitioners in both. Introduction to Particle and Astroparticle Physics is designed to bridge the gap between the fields. It can be used...

  4. Teaching Elementary Particle Physics, Part II

    Science.gov (United States)

    Hobson, Art

    2011-01-01

    In order to explain certain features of radioactive beta decay, Wolfgang Pauli suggested in 1930 that the nucleus emitted, in addition to a beta particle, another particle of an entirely new type. The hypothesized particle, dubbed the neutrino, would not be discovered experimentally for another 25 years. It's not easy to detect neutrinos, because…

  5. Alpha Particle Physics Experiments in the Tokamak Fusion Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    Budny, R.V.; Darrow, D.S.; Medley, S.S.; Nazikian, R.; Zweben, S.J.; et al.

    1998-12-14

    Alpha particle physics experiments were done on the Tokamak Fusion Test Reactor (TFTR) during its deuterium-tritium (DT) run from 1993-1997. These experiments utilized several new alpha particle diagnostics and hundreds of DT discharges to characterize the alpha particle confinement and wave-particle interactions. In general, the results from the alpha particle diagnostics agreed with the classical single-particle confinement model in magnetohydrodynamic (MHD) quiescent discharges. Also, the observed alpha particle interactions with sawteeth, toroidal Alfvén eigenmodes (TAE), and ion cyclotron resonant frequency (ICRF) waves were roughly consistent with theoretical modeling. This paper reviews what was learned and identifies what remains to be understood.

  6. The Future of Theoretical Physics and Cosmology

    Science.gov (United States)

    Gibbons, G. W.; Shellard, E. P. S.; Rankin, S. J.

    2009-08-01

    Preface; List of contributors; 1. Introduction; Part I. Popular Symposium: 2. Our complex cosmos and its future Martin J. Rees; 3. Theories of everything and Hawking's wave function of the Universe James B. Hartle; 4. The problem of space-time singularities: implications for quantum gravity? Roger Penrose; 5. Warping spacetime Kip Thorne; 6. 60 years in a nutshell Stephen W. Hawking; Part II. Spacetime Singularities: 7. Cosmological perturbations and singularities George F. R. Ellis; 8. The quantum physics of chronology protection Matt Visser; 9. Energy dominance and the Hawking-Ellis vacuum conservation theorem Brandon Carter; 10. On the instability of extra space dimensions Roger Penrose; Part III. Black Holes: 11. Black hole uniqueness and the inner horizon stability problem Werner Israel; 12. Black holes in the real universe and their prospects as probes of relativistic gravity Martin J. Rees; 13. Primordial black holes Bernard Carr; 14. Black hole pair creation Simon F. Ross; 15. Black holes as accelerators Steven Giddings; Part IV. Hawking Radiation: 16. Black holes and string theory Malcolm Perry; 17. M theory and black hole quantum mechanics Joe Polchinski; 18. Playing with black strings Gary Horowitz; 19. Twenty years of debate with Stephen Leonard Susskind; Part V. Quantum Gravity: 20. Euclidean quantum gravity: the view from 2002 Gary Gibbons; 21. Zeta functions, anomalies and stable branes Ian Moss; 22. Some reflections on the status of conventional quantum theory when applied to quantum gravity Chris Isham; 23. Quantum geometry and its ramifications Abhay Ashtekar; 24. Topology change in quantum gravity Fay Dowker; Part VI. M Theory and Beyond: 25. The past and future of string theory Edward Witten; 26. String theory David Gross; 27. A brief description of string theory Michael Green; 28. The story of M Paul Townsend; 29. Gauged supergravity and holographic field theory Nick Warner; 30. 57 varieties in a NUTshell Chris Pope; Part VII. de Sitter Space

  7. Accelerator physics and technology research toward future multi-MW proton accelerators

    CERN Document Server

    Shiltsev, V; Romanenko, A; Valishev, A; Zwaska, R

    2015-01-01

    Recent P5 report indicated the accelerator-based neutrino and rare decay physics research as a centrepiece of the US domestic HEP program. Operation, upgrade and development of the accelerators for the near-term and longer-term particle physics program at the Intensity Frontier face formidable challenges. Here we discuss accelerator physics and technology research toward future multi-MW proton accelerators.

  8. ICARUS T600: physics results and future activities

    Directory of Open Access Journals (Sweden)

    Zani Andrea

    2016-01-01

    This contribution will report the present physics results obtained by the ICARUS Collaboration, as well as describe the overhauling activities and the physics program for the detector in its future deployment at Fermilab.

  9. Fundamental Particles and Interactions. A Wall Chart of Modern Physics.

    Science.gov (United States)

    Achor, William T.; And Others

    1988-01-01

    Discusses a wall chart, "The Standard Model of Fundamental Particles and Interactions," for use in introductory physics courses at either high school or college level. Describes the chart development process, introduction and terminology of particle physics, components of the chart, and suggestions for using the chart, booklet, and…

  10. Active quadrupole stabilization for future linear particle colliders

    CERN Document Server

    Collette, Christophe; Kuzmin, Andrey; Janssens, Stef; Sylte, Magnus; Guinchard, Michael; Hauviller, Claude

    2010-01-01

    The future Compact LInear particle Collider (CLIC) under study at CERN will require to stabilize heavy electromagnets, and also to provide them some positioning capabilities. Firstly, this paper presents the concept adopted to address both requirements. Secondly, the control strategy adopted for the stabilization is studied numerically, showing that the quadrupole can be stabilized in both lateral and vertical direction. Finally, the strategy is validated experimentally on a single degree of freedom scaled test bench.

  11. Physics Perspectives for a Future Circular Collider: FCC-ee

    CERN Document Server

    CERN. Geneva

    2017-01-01

    The lectures will briefly discuss the parameters of a Future Circular Collider, before addressing in detail the physics perspectives and the challenges for the experiments and detector systems. The main focus will be on ee and pp collisions, but opportunities for e—p physics will also be covered. The FCC physics perspectives will be presented with reference to the ongoing LHC programme, including the physics potential from future upgrades to the LHC in luminosity and possibly energy.  

  12. Women and the Future of Physics

    Energy Technology Data Exchange (ETDEWEB)

    Georgi, Howard (Harvard)

    2004-10-20

    The number of women in physics at all levels is increasing but still small. Why? Is this good, bad, or merely inevitable? I will describe the evolution of my own understanding of the issues involved. I will argue that the dearth of women in physics is a symptom of a deeper problem that we must solve if physics is to remain a vital flagship science in a changing world. I will offer some suggestions that I hope will be thought-provoking.

  13. China pursues major role in particle physics

    CERN Multimedia

    Overbye, Dennis

    2006-01-01

    Chinese physicists invented a sort of onion-layer theory of particles called the straton model, in which both protons and electrons have a common constituent. Sheldon Glashow, the physicist and Nobelist now at Boston University, once suggested that such a particle, if found. should be named the Maon. (4,5 pages)

  14. Energy related applications of elementary particle physics. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Rafelski, J.

    1991-08-31

    The current research position is summarized, and what could be done in the future to clarify issues which were opened up by the research is indicated. Following on the discussion of the viability of catalyzed fusion, there is presented along with the key experimental results, a short account of the physics surrounding the subject. This is followed by a discussion of key research topics addressed. In consequence of the progress made, it appears that the feasibility of a small-scale fusion based on catalyzed reactions rests on either the remote chance that a yet undiscovered ultraheavy negatively charged elementary particle exists in Nature, or on the possible technical realization of a system based on muon-catalyzed fusion (MuCF) in high-density degenerate hydrogen plasma (density 1000 LHD, temperature O(100 eV)). The lattter is considered to have practical promise.

  15. Particle physics implications of Wilkinson microwave anisotropy project measurements

    Indian Academy of Sciences (India)

    U A Yajnik

    2004-12-01

    We present an overview of the implications of the WMAP data for particle physics. The standard parameter set and characterising the inflaton potential can be related to the power-law indices characterising deviation of the CMB spectrum from the scale invariant form. Different classes of inflation potentials are in turn naturally associated with different unified schemes. At present WMAP does not exclude any but a few simple unified models. In particular, hybrid models favoured by supersymmetric unification continue to be viable. However future improvement in data leading to better determination of the `running' of power-law indices should help to narrow the possibilities for unified models. The main conclusion is that WMAP is consistent with the paradigm of GUT scale (1016 GeV) inflation.

  16. Superconducting Kinetic Inductance Detectors for astronomy and particle physics

    Science.gov (United States)

    Calvo, M.; Goupy, J.; D`Addabbo, A.; Benoit, A.; Bourrion, O.; Catalano, A.; Monfardini, A.

    2016-07-01

    Kinetic Inductance Detectors (KID) represent a novel detector technology based on superconducting resonators. Since their first demonstration in 2003, they have been rapidly developed and are today a strong candidate for present and future experiments in the different bands of the electromagnetic spectrum. This has been possible thanks to the unique features of such devices: in particular, they couple a very high sensitivity to their intrinsic suitability for frequency domain multiplexed readout, making the fabrication of large arrays of ultrasensitive detectors possible. There are many fields of application that can profit of such detectors. Here, we will briefly review the principle of operation of a KID, and give two sample applications, to mm-wave astronomy and to particle physics.

  17. Superconducting Kinetic Inductance Detectors for astronomy and particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Calvo, M., E-mail: martino.calvo@neel.cnrs.fr [Institute Néel, CNRS, Grenoble (France); Goupy, J.; D' Addabbo, A.; Benoit, A. [Institute Néel, CNRS, Grenoble (France); Bourrion, O. [Laboratoire de Physique Subatomique et Cosmologie, CNRS, Grenoble (France); Catalano, A. [Institute Néel, CNRS, Grenoble (France); Laboratoire de Physique Subatomique et Cosmologie, CNRS, Grenoble (France); Monfardini, A. [Institute Néel, CNRS, Grenoble (France)

    2016-07-11

    Kinetic Inductance Detectors (KID) represent a novel detector technology based on superconducting resonators. Since their first demonstration in 2003, they have been rapidly developed and are today a strong candidate for present and future experiments in the different bands of the electromagnetic spectrum. This has been possible thanks to the unique features of such devices: in particular, they couple a very high sensitivity to their intrinsic suitability for frequency domain multiplexed readout, making the fabrication of large arrays of ultrasensitive detectors possible. There are many fields of application that can profit of such detectors. Here, we will briefly review the principle of operation of a KID, and give two sample applications, to mm-wave astronomy and to particle physics.

  18. PARTICLE PHYSICS: CERN Collider Glimpses Supersymmetry--Maybe.

    Science.gov (United States)

    Seife, C

    2000-07-14

    Last week, particle physicists at the CERN laboratory in Switzerland announced that by smashing together matter and antimatter in four experiments, they detected an unexpected effect in the sprays of particles that ensued. The anomaly is subtle, and physicists caution that it might still be a statistical fluke. If confirmed, however, it could mark the long-sought discovery of a whole zoo of new particles--and the end of a long-standing model of particle physics.

  19. Future hadron physics facilities at Fermilab

    Energy Technology Data Exchange (ETDEWEB)

    Appel, Jeffrey A.; /Fermilab

    2004-12-01

    Fermilab's hadron physics research continues in all its accelerator-based programs. These efforts will be identified, and the optimization of the Fermilab schedules for physics will be described. In addition to the immediate plans, the Fermilab Long Range Plan will be cited, and the status and potential role of a new proton source, the Proton Driver, is described.

  20. How to define physical properties of unstable particles

    OpenAIRE

    Gegelia, J.; Scherer, S.

    2009-01-01

    In the framework of effective quantum field theory we address the definition of physical quantities characterizing unstable particles. With the aid of a one-loop calculation, we study this issue in terms of the charge and the magnetic moment of a spin-1/2 resonance. By appealing to the invariance of physical observables under field redefinitions we demonstrate that physical properties of unstable particles should be extracted from the residues at complex (double) poles of the corresponding S-...

  1. Future Prospects for Hadron Physics at PANDA

    CERN Document Server

    Wiedner, Ulrich

    2011-01-01

    The PANDA experiment at the new FAIR facility will be the major hadron physics experiment at the end of this decade. It has an ambitious far-reaching physics program that spans the most fascinating topics that are emerging in contemporary hadron physics. The universality of the antiproton annihilation process, with either protons or nuclei as targets, allows physicists to address questions like the structure of glueballs and hybrids; to clarify the nature of the X, Y and Z states; to investigate electromagnetic channels in order to measure form factors of the nucleon; and to provide theory with input with respect to non-perturbative aspects of QCD. The possibility to use different nuclear targets opens the window for charm physics with nuclei or for color transparency studies, as well as for an intensive hypernuclear physics program. Previous experimental experience has clearly demonstrated that the key to success lies in high levels of precision complemented with sophisticated analysis methods, only possible...

  2. Wanted: Moderators for International Masterclasses in Particle Physics

    CERN Multimedia

    2015-01-01

    The International Masterclasses in Particle Physics give high school students from around the world the opportunity to become particle physicists for a day. CERN physicists are invited to participate in next year’s Masterclass programme, to be held from 11 February to 23 March 2016.   The International Masterclasses in Particle Physics conclude with a video conference, where students from different countries connect with moderators at CERN to discuss their results.   During a Masterclass, high-school students work with recent data from the LHC experiments under the supervision of physicists. For example, students can rediscover the Z boson or the structure of the proton, reconstruct strange particles or measure the lifetime of the D0 particle. “Students get a taste of how modern physics research works by working directly with particle physicists and using real LHC data,” says Uta Bilow from TU Dresden, coordinator of the International Mas...

  3. Sakurai Prize: The Future of Higgs Physics

    Science.gov (United States)

    Dawson, Sally

    2017-01-01

    The discovery of the Higgs boson relied critically on precision calculations. The quantum contributions from the Higgs boson to the W and top quark masses suggested long before the Higgs discovery that a Standard Model Higgs boson should have a mass in the 100-200 GeV range. The experimental extraction of Higgs properties requires normalization to the predicted Higgs production and decay rates, for which higher order corrections are also essential. As Higgs physics becomes a mature subject, more and more precise calculations will be required. If there is new physics at high scales, it will contribute to the predictions and precision Higgs physics will be a window to beyond the Standard Model physics.

  4. Physics of new methods of charged particle acceleration collective effects in dense charged particle ensembles

    CERN Document Server

    Bonch-Osmolovsky, A G

    1994-01-01

    This volume discusses the theory of new methods of charged particle acceleration and its physical and mathematical descriptions. It examines some collective effects in dense charged particle ensembles, and traces the history of the development of the field of accelerator physics.

  5. Particle Physics Meets Cosmology -- The Search for Decaying Neutrinos.

    Science.gov (United States)

    Henry, Richard C.

    1982-01-01

    Detection of neutrino decay may have profound consequences for both particle physics and cosmology, providing a deep connection between physics of the very large and physics of the very small. Describes this link and discusses the nature and status of the search for decaying neutrinos. (Author/JN)

  6. High-Energy Physics Strategies and Future Large-Scale Projects

    CERN Document Server

    Zimmermann, F

    2015-01-01

    We sketch the actual European and international strategies and possible future facilities. In the near term the High Energy Physics (HEP) community will fully exploit the physics potential of the Large Hadron Collider (LHC) through its high-luminosity upgrade (HL-LHC). Post-LHC options include a linear e+e- collider in Japan (ILC) or at CERN (CLIC), as well as circular lepton or hadron colliders in China (CepC/SppC) and Europe (FCC). We conclude with linear and circular acceleration approaches based on crystals, and some perspectives for the far future of accelerator-based particle physics.

  7. High-energy physics strategies and future large-scale projects

    Energy Technology Data Exchange (ETDEWEB)

    Zimmermann, F.

    2015-07-15

    We sketch the actual European and international strategies and possible future facilities. In the near term the High Energy Physics (HEP) community will fully exploit the physics potential of the Large Hadron Collider (LHC) through its high-luminosity upgrade (HL-LHC). Post-LHC options include a linear e{sup +}e{sup −} collider in Japan (ILC) or at CERN (CLIC), as well as circular lepton or hadron colliders in China (CepC/SppC) and Europe (FCC). We conclude with linear and circular acceleration approaches based on crystals, and some perspectives for the far future of accelerator-based particle physics.

  8. Heavy Ion Physics in the Future

    Energy Technology Data Exchange (ETDEWEB)

    Nagamiya, Shoji [RIKEN, 2-1 Hirosawa, Wako-shi, Saitama, 351-0198 (Japan); KEK, 1-1 Oho, Tsukuba-shi, Ibaraki, 305-0801 (Japan)

    2016-12-15

    Bevalac started its operation in 1970, which was an initiation of this field. Then, 15 years later (in 1985) both AGS and SPS started their operations. After further 15 or 25 years, RHIC (in 2000) and then LHC (in 2010) started operating. Present highlights are centered at these two facilities. However, how about the future direction in this field? Here, firstly the past achievements of RHIC and LHC are reviewed, and then the current and future issues are considered. Finally, the scope on the lower-energy region, in which I am currently involved, is described.

  9. High energy physics, past, present and future

    Science.gov (United States)

    Sugawara, Hirotaka

    2017-03-01

    At the beginning of last century we witnessed the emergence of new physics, quantum theory and gravitational theory, which gave us correct understanding of the world of atoms and deep insight into the structure of universe we live in. Towards the end of the century, string theory emerged as the most promising candidate to unify these two theories. In this talk, I would like to assert that the understanding of the origin of physical constants, ℏ (Planck constant) for quantum theory, and G (Newton’s gravitational constant) for gravitational theory within the framework of string theory is the key to understanding string theory. Then, I will shift to experimental high energy physics and discuss the necessity of world-wide collaboration in the area of superconducting technology which is essential in constructing the 100 TeV hadron collider.

  10. Toward Better Physics Labs for Future Biologists

    CERN Document Server

    Moore, K; Losert, W

    2013-01-01

    We have developed a set of laboratories and hands on activities to accompany a new two-semester interdisciplinary physics course that has been successfully developed and tested in two small test classes of students at the University of Maryland, College Park (UMD) in 2012-2013. We have designed the laboratories to be taken accompanying a reformed course in the student's second year, with calculus, biology, and chemistry as prerequisites. This permits the laboratories to include significant content on physics relevant to cellular scales, from chemical interactions to random motion and charge screening in fluids. We also introduce the students to research-grade equipment and modern physics analysis tools in contexts relevant to biology, while maintaining the pedagogically valuable open-ended laboratory structure of reformed laboratories. Preliminary student results from these two small test classes are discussed.

  11. News from the Library: Online particle physics information: a unique compilation of information resources in particle physics

    CERN Multimedia

    CERN Library

    2012-01-01

    Are you looking for some specific information in particle physics? For example, the main literature databases, data repositories or laboratories...   Just go to the Libary's Online Particle Physics Information page. There you'll find a wide selection of relevant information, as well as resources in particle physics and related areas. The collection covers all aspects of the discipline - in addition to traditional scientific information resources you can find, for example, a selection of relevant blogs and art websites. This webpage is an extended and regularly updated version of the chapter on Online Particle Physics Information in the Review of Particle Properties. It is maintained by the CERN Library team which welcomes suggestions for additions and updates: library.desk@cern.ch.  

  12. Precision measurement for particle physics and cosmology

    Science.gov (United States)

    Graham, Peter

    2017-01-01

    Axions and other light particles are strongly motivated. For example, the axion is the crucial element in the recently proposed solution to the hierarchy problem using dynamical relaxation in the early universe. However, such particles are challenging to search for experimentally. Precision measurement technologies such as atom interferometry, nuclear magnetic resonance, high precision magnetometry, and torsion balances allow novel, highly sensitive experiments for direct detection of such light dark matter and of gravitational waves. Thus precision measurement technologies open new avenues for probing the origin and composition of the universe.

  13. Challenging particle physics as path to truth

    CERN Multimedia

    Johnson, G

    2001-01-01

    Particle physicist's ultimate goal is 'grand unification' - describing the four forces observed today - electromagnetism, weak and strong nuclear forces and gravity with just a single law, expressable as a few concise equations. But some solid state physicists are now contesting the validity of this approach, arguing that many forms of matter cannot be described solely in terms of fundamental particle interactions - when systems are very complex, new and independent laws emerge. They propose that there is no one theory of everything, just a lot of theories of things.

  14. (Participation in high energy physics): Task C, Particle physics and cosmology

    Energy Technology Data Exchange (ETDEWEB)

    Turner, M.S.

    1992-05-01

    Over the past year or so the research of our group has spanned many topics at the boundary of particle physics and cosmology. The major focus has been in the general areas of inflation, cosmological phase transitions, astrophysical constraints to particle physics theories, and dark matter/structure formation as it relates to particle physics. Narrative summaries of the research of the individual group members are given in this paper.

  15. Future prospects of Higgs Physics at CMS

    OpenAIRE

    2014-01-01

    The Higgs boson physics reach of the CMS detector with 300(0) fb-1 of proton-proton collisions at sqrt{s} = 14 TeV is presented. Precision measurements of the Higgs boson properties, Higgs boson pair production and self-coupling, rare Higgs boson decays, and the potential for additional Higgs bosons are discussed.

  16. Catching up with the Future of Physics

    CERN Multimedia

    2008-01-01

    With most of the high-energy physics world on tenterhooks waiting for the startup of the Large Hadron Collider in Switzerland later this year, it's a good time to catch up (if you haven't already) on what all the excitement is about.

  17. RICH Particle Identification at the Present and Future LHCb Experiment

    CERN Document Server

    Kim, Graham Young-Min

    2011-01-01

    LHCb is a high-precision experiment for the study of CP violation and rare decays in B physics. It has two Ring Imaging Cherenkov (RICH) counters for particle identification. The RICH system uses Hybrid Photon Detectors (HPD) for single photon detection. This thesis describes tests performed on individual HPDs for quantum efficiency and vacuum quality. It then presents work done monitoring HPD vacuum quality through regular ion feedback measurements after they were mounted into the RICH. Also discussed is HPD vacuum degradation and how replacement and repair of deteriorated HPDs was implemented using data from the vacuum monitoring. Preparations for an upgrade to LHCb have started. The upgrade will extend the discovery potential of the LHCb by increasing the rate of data collection. This thesis presents particle identification and flavour tagging studies using upgrade simulations. Flavour tagging using kaons was then reoptimised for upgrade conditions and this work is described with discussions of the results...

  18. Atomic, molecular, and optical physics charged particles

    CERN Document Server

    Dunning, F B

    1995-01-01

    With this volume, Methods of Experimental Physics becomes Experimental Methods in the Physical Sciences, a name change which reflects the evolution of todays science. This volume is the first of three which will provide a comprehensive treatment of the key experimental methods of atomic, molecular, and optical physics; the three volumes as a set will form an excellent experimental handbook for the field. The wide availability of tunable lasers in the pastseveral years has revolutionized the field and lead to the introduction of many new experimental methods that are covered in these volumes. Traditional methods are also included to ensure that the volumes will be a complete reference source for the field.

  19. Particle Physics Aspects of Antihydrogen Studies with ALPHA at CERN

    Science.gov (United States)

    Fujiwara, M. C.; Andresen, G. B.; Bertsche, W.; Bowe, P. D.; Bray, C. C.; Butler, E.; Cesar, C. L.; Chapman, S.; Charlton, M.; Fajans, J.; Funakoshi, R.; Gill, D. R.; Hangst, J. S.; Hardy, W. N.; Hayano, R. S.; Hayden, M. E.; Humphries, A. J.; Hydomako, R.; Jenkins, M. J.; Jørgensen, L. V.; Kurchaninov, L.; Lai, W.; Lambo, R.; Madsen, N.; Nolan, P.; Olchanski, K.; Olin, A.; Povilus, A.; Pusa, P.; Robicheaux, F.; Sarid, E.; El Nasr, S. Seif; Silveira, D. M.; Storey, J. W.; Thompson, R. I.; van der Werf, D. P.; Wasilenko, L.; Wurtele, J. S.; Yamazaki, Y.

    2008-08-01

    We discuss aspects of antihydrogen studies, that relate to particle physics ideas and techniques, within the context of the ALPHA experiment at CERN's Antiproton Decelerator facility. We review the fundamental physics motivations for antihydrogen studies, and their potential physics reach. We argue that initial spectroscopy measurements, once antihydrogen is trapped, could provide competitive tests of CPT, possibly probing physics at the Planck Scale. We discuss some of the particle detection techniques used in ALPHA. Preliminary results from commissioning studies of a partial system of the ALPHA Si vertex detector are presented, the results of which highlight the power of annihilation vertex detection capability in antihydrogen studies.

  20. Particle Physics Aspects of Antihydrogen Studies with ALPHA at CERN

    CERN Document Server

    Fujiwara, M C; Bertsche, W; Bowe, P D; Bray, C C; Butler, E; Cesar, C L; Chapman, S; Charlton, M; Fajans, J; Funakoshi, R; Gill, D R; Hangst, J S; Hardy, W N; Hayano, R S; Hayden, M E; Humphries, A J; Hydomako, R; Jenkins, M J; Jørgensen, L V; Kurchaninov, L; Lai, W; Lambo, R; Madsen, N; Nolan, P; Olchanski, K; Olin, A; Povilus, A; Pusa, P; Robicheaux, F; Sarid, E; Seif El Nasr, S; Silveira, D M; Storey, J W; Thompson, R I; Van der Werf, D P; Wasilenko, L; Wurtele, J S; Yamazaki, Y

    2008-01-01

    We discuss aspects of antihydrogen studies, that relate to particle physics ideas and techniques, within the context of the ALPHA experiment at CERN's Antiproton Decelerator facility. We review the fundamental physics motivations for antihydrogen studies, and their potential physics reach. We argue that initial spectroscopy measurements, once antihydrogen is trapped, could provide competitive tests of CPT, possibly probing physics at the Planck Scale. We discuss some of the particle detection techniques used in ALPHA. Preliminary results from commissioning studies of a partial system of the ALPHA Si vertex detector are presented, the results of which highlight the power of annihilation vertex detection capability in antihydrogen studies.

  1. Obituaries: Oreste Piccioni, 86, a leader in particle physics field

    CERN Multimedia

    2002-01-01

    Oreste Piccioni, a leading scientist in the field of elementary particle physics and emeritus professor at the University of California, San Diego, USA, has died of complications from diabetes and lung cancer. He was 86 (1 page).

  2. Modified Wave Particle Duality and Black Hole Physics

    Institute of Scientific and Technical Information of China (English)

    LI Xiang

    2007-01-01

    de Broglie relation is revisited, in consideration of a generalization of canonical commuting relation. The possible effects on particle's localization and black hole physics are also discussed, in a heuristic manner.

  3. Symmetry and the Standard Model mathematics and particle physics

    CERN Document Server

    Robinson, Matthew

    2011-01-01

    While elementary particle physics is an extraordinarily fascinating field, the huge amount of knowledge necessary to perform cutting-edge research poses a formidable challenge for students. The leap from the material contained in the standard graduate course sequence to the frontiers of M-theory, for example, is tremendous. To make substantial contributions to the field, students must first confront a long reading list of texts on quantum field theory, general relativity, gauge theory, particle interactions, conformal field theory, and string theory. Moreover, waves of new mathematics are required at each stage, spanning a broad set of topics including algebra, geometry, topology, and analysis. Symmetry and the Standard Model: Mathematics and Particle Physics, by Matthew Robinson, is the first volume of a series intended to teach math in a way that is catered to physicists. Following a brief review of classical physics at the undergraduate level and a preview of particle physics from an experimentalist's per...

  4. Prospect of Particle Physics in China

    CERN Document Server

    CERN. Geneva

    2008-01-01

    The Beijing Electron Positron Collider (BEPC) finished its running July 2005, with great success in both the Tau-Charm physics experiment and the synchrotron radiation light source. The latest Charm physics results from BEPC are reviewed, including the observation of the new resonance of X1835 with a possible explanation of the PPbar bound state. The major upgrade of BEPC into a double ring collider, so called BEPCII, will increase its luminosity by two orders of magnitude. The physics window of BEPCII is mainly the precision measurements in the Charm physics and the search for new phenomena. The construction of BEPCII is finished. The tuning of the storage ring goes smoothly. The synchrotron radiation facility of BEPCII opened to users with high performance since the end of 2006. The new detector BESIII has been moved into the interaction region June, and the joint commissioning started. The non-accelerator experiments in China are ...

  5. Effective theories and thresholds in particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Gaillard, M.K.

    1991-06-07

    The role of effective theories in probing a more fundamental underlying theory and in indicating new physics thresholds is discussed, with examples from the standard model and more speculative applications to superstring theory. 38 refs.

  6. Studies In Theoretical High Energy Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Keung, Wai Yee [Univ. of Illinois, Chicago, IL (United States)

    2017-07-01

    This is a final technical report for grant no. DE-SC0007948 describing research activities in theoretical high energy physics at University of Illinois at Chicago for the whole grant period from July 1, 2012 to March 31, 2017.

  7. Implication of Sterile Fermions in Particle Physics and Cosmology

    CERN Document Server

    Lucente, Michele

    2016-01-01

    The neutrino mass generation mechanism, the nature of dark matter and the origin of the baryon asymmetry of the Universe are three compelling questions that cannot be accounted for in the Standard Model of particle physics. In this thesis we focus on all these issues by providing a possible solution in terms of a minimal extension of the Standard Model, consisting in the addition of a set of sterile fermions to the field content of the theory. Sterile fermions are gauge singlet fields, that can interact via mixing with the active neutrinos. We focus on the Inverse Seesaw mechanism, which is characterised by a low (TeV or lower) new physics scale and that can be tested in current and future experimental facilities. We present the model building analysis that points towards the minimal realisations of the mechanism, and the phenomenological study in order to accommodate light neutrino masses and to impose all the relevant experimental constraints in the model, as well as the expected experimental signatures. We...

  8. Compactified String Theories -- Generic Predictions for Particle Physics

    CERN Document Server

    Acharya, Bobby Samir; Kumar, Piyush

    2012-01-01

    In recent years it has been realized that in string/$M$ theories compactified to four dimensions which satisfy cosmological constraints, it is possible to make some generic predictions for particle physics and dark matter: a non-thermal cosmological history before primordial nucleosynthesis, a scale of supersymmetry breaking which is "high" as in gravity mediation, scalar superpartners too heavy to be produced at the LHC (although gluino production is expected in many cases), and a significant fraction of dark matter in the form of axions. When the matter and gauge spectrum below the compactification scale is that of the MSSM, a robust prediction of about 125 GeV for the Higgs boson mass, predictions for various aspects of dark matter physics, as well as predictions for future precision measurements, can be made. As a prototypical example, $M$ theory compactified on a manifold of $G_2$ holonomy leads to a good candidate for our "string vacuum", with the TeV scale emerging from the Planck scale, a de Sitter va...

  9. Celebrating 40 years of research in Journal of Physics G: Nuclear and Particle Physics

    Science.gov (United States)

    Adcock, Colin D.; Martin, Alan D.; Schwenk, Achim

    2015-09-01

    2015 marks the 40th anniversary of Journal of Physics G: Nuclear and Particle Physics. This editorial provides a brief history of the journal, and introduces a unique collection of invited articles from leading authors to celebrate the occasion.

  10. Quarks, Leptons, and Bosons: A Particle Physics Primer.

    Science.gov (United States)

    Wagoner, Robert; Goldsmith, Donald

    1983-01-01

    Presented is a non-technical introduction to particle physics. The material is adapted from chapter 3 of "Cosmic Horizons," (by Robert Wagoner and Don Goldsmith), a lay-person's introduction to cosmology. Among the topics considered are elementary particles, forces and motion, and higher level structures. (JN)

  11. Teaching Particle Physics in the Open University's Science Foundation Course.

    Science.gov (United States)

    Farmelo, Graham

    1992-01-01

    Discusses four topics presented in the science foundation course of the Open University that exemplify current developments in particle physics, in particular, and that describe important issues about the nature of science, in general. Topics include the omega minus particle, the diversity of quarks, the heavy lepton, and the discovery of the W…

  12. The engineering needed for particle physics.

    Science.gov (United States)

    Myers, Steve

    2012-08-28

    Today's particle accelerators and detectors are among the most complicated and expensive scientific instruments ever built, and they exploit almost every aspect of today's cutting-edge engineering technologies. In many cases, accelerator needs have been the driving force behind these new technologies, necessity being the mother of invention. This paper gives an overview of some engineering requirements for the construction and operation of present-day accelerators and detectors.

  13. Resource Letter HEPP-1: History of elementary-particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Hovis, R.C. (Department of Physics, Clark Hall, Cornell University, Ithaca, New York (USA)); Kragh, H. (TISK Project, Roskilde University Centre, Postbox 260, 4000 Roskilde (Denmark))

    1991-09-01

    This Resource Letter provides a guide to literature on the history of modern elementary-particle physics. Histories that treat developments from the 1930s through the 1980s are focused on and a sampling is included of the historiography covering the period c. 1890--1930, the prehistory of elementary-particle physics as a discipline. Also included are collections of scientific papers, which might be especially valuable to individuals who wish to undertake historical research on particular scientists or subfields of elementary-particle physics. The introduction presents some statistical data and associated references for elementary-particle physics and surveys historiographical approaches and issues that are represented in historical accounts in the bibliography. All references are assigned a rating of E (Elementary), I (Intermediate), or A (Advanced) based on their technical or conceptual difficulty or their appropriateness for a person attempting a graduated study of the history of modern particle physics. That is, items labeled E are suitable for the layman or would be fundamental to a beginning exploration of the history of particle physics, whereas items labeled A are technically demanding (mathematically, historiographically, or philosophically) or would be most appropriate for specialized or advanced examinations of various topics.

  14. Foundations of Nuclear and Particle Physics

    Science.gov (United States)

    Donnelly, T. William; Formaggio, Joseph A.; Holstein, Barry R.; Milner, Richard G.; Surrow, Bernd

    2017-03-01

    1. Introduction; 2. Symmetries; 3. Building hadrons from quarks; 4. The standard model; 5. QCD and confinement; 6. Chiral symmetry and QCD; 7. Introduction to lepton scattering; 8. Elastic electron scattering from the nucleon; 9. Hadron structure via lepton-nucleon scattering; 10. High-energy QCD; 11. The nucleon-nucleon interaction; 12. The structure and properties of few-body nuclei; 13. Overview of many-body nuclei; 14. Models of many-body nuclei; 15. Electron scattering from discrete states; 16. Electroexcitation of high-lying excitations of the nucleus; 17. Beta decay; 18. Neutrino physics; 19. The physics of relativistic heavy-ions; 20. Astrophysics; 21. Beyond the standard model physics; Appendix A. Useful information; Appendix B. Quantum theory.

  15. Physics at ELSA, achievements and future

    CERN Document Server

    Thoma, U

    2005-01-01

    At ELSA interesting results on baryon resonances have been obtained by the CB-ELSA, the CBELSA/TAPS and the SAPHIR collaborations. New resonances were found, in particular a new $\\rm D_{15}(2070)$ decaying into $p\\eta$, was recently observed by the CB-ELSA experiment. The availability of a polarized beam and a polarized target did allow to measure the GDH sum rule up to 2.9 GeV. In the future double polarization experiments will be performed using the Crystal Barrel detector together with new forward detector components. These polarization observables will provide important additional information for the partial wave analyses performed to extract the contributing resonances and their parameters from the data.

  16. Elementary Particle Physics at Baylor (Final Report)

    Energy Technology Data Exchange (ETDEWEB)

    Dittmann, J.R.

    2012-08-25

    This report summarizes the activities of the Baylor University Experimental High Energy Physics (HEP) group on the Collider Detector at Fermilab (CDF) experiment from August 15, 2005 to May 31, 2012. Led by the Principal Investigator (Dr. Jay R. Dittmann), the Baylor HEP group has actively pursued a variety of cutting-edge measurements from proton-antiproton collisions at the energy frontier.

  17. Higgs Physics at future Linear Colliders - A Case for precise Vertexing

    CERN Document Server

    Simon, Frank

    2014-01-01

    The discovery of a Higgs boson by the experiments at the LHC marks a major breakthrough in particle physics, with far-reaching consequences for our understanding of the fundamental principles of our Universe. To fully explore this unique particle, experiments at high-energy electron-positron colliders are being planned, providing substantial added benefit over the capabilities of the LHC alone, such as model-independent measurements of couplings, constraints on invisible decays and precise measurements of the self-coupling. This contribution summarizes the Higgs physics program at such future facilities, highlighting in particular also the role of precise vertexing in achieving the ambitious goals of these experiments.

  18. Fundamental concepts in Particle Physics course

    CERN Document Server

    CERN. Geneva HR-RFA

    2006-01-01

    The course will provide an introduction to some of the basic theoretical techniques used to describe the fundamental particles and their interactions. Of central importance to our understanding of these forces are the underlying symmetries of nature and I will review the nature of these symmetries and how they are used to build a predictive theory. I discuss how the combination of quantum mechanics and relativity leads to the quantum field theory (QFT) description of the states of matter and their interactions. The Feynman rules used to determine the QFT predictions for experimentally measurable processes are derived and applied to the calculation of decay widths and cross sections.

  19. Spin physics at RHIC: Present and future

    Indian Academy of Sciences (India)

    Abhay Deshpande

    2003-11-01

    In 2001–2002 the relativistic heavy-ion collider (RHIC) at the Brookhaven National Laboratory (BNL) was first commissioned for polarized proton collisions. Polarized protons were injected into the RHIC, accelerated to 100 GeV, stored and the two beams were made to collide in four interaction regions. I will review the progress made by the RHIC spin program, followed by the physics goals for the next few years. After that I will present a brief overview of a proposal to build a high intensity polarized electron/positron beam facility at BNL which would enable deep inelastic scattering (DIS) experiments to be pursued at BNL by its collisions with the RHIC hadron beams.

  20. Review of lattice results concerning low-energy particle physics

    DEFF Research Database (Denmark)

    Aoki, Sinya; Aoki, Yasumichi; Bečirević, D.

    2017-01-01

    We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0) , arising in the semileptonic K→ π transition...

  1. Review of lattice results concerning low energy particle physics

    DEFF Research Database (Denmark)

    Aoki, Sinya; Aoki, Yasumichi; Bernard, Claude

    2014-01-01

    We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0), arising in semileptonic K -> pi transition...

  2. Quantum Optics, Diffraction Theory, and Elementary Particle Physics

    CERN Document Server

    CERN. Geneva

    2009-01-01

    Physical optics has expanded greatly in recent years. Though it remains part of the ancestry of elementary particle physics, there are once again lessons to be learned from it. I shall discuss several of these, including some that have emerged at CERN and Brookhaven.

  3. Review of lattice results concerning low-energy particle physics

    DEFF Research Database (Denmark)

    Aoki, Sinya; Aoki, Yasumichi; Bečirević, D.

    2017-01-01

    We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0) , arising in the semileptonic K→ π transition...

  4. Physics of liquid and crystalline plasmas: Future perspectives

    Science.gov (United States)

    Morfill, G. E.

    It has been shown that under certain conditions "complex plasmas" (plasma containing ions, electrons and charged microspheres) may undergo spontaneous phase changes to become liquid and crystalline, without recombination of the charge components. Hence these systems may be regarded as new plasma states "condensed plasmas". The ordering forces are mainly electrostatic, but dipolar effects, anisotropic pressure due shielding, ion flow focussing etc. may all play a role, too. Complex plasmas are of great interest from a fundamental research point of view because the individual particles of one plasma component (the charged microspheres) can be visualised and hence the plasma can be studied at the kinetic level. Also, the relevant time scales (e.g. 1/plasma frequency) are of order 0.1 sec, the plasma processes occur practically in "slow motion". We will discuss some physical processes (e.g. wave propagation, shocks, phase transitions) of these systems and outline the potential of the research for the understanding of strongly coupled systems. Technologically, it is expected that colloidal plasmas will also become very important, because both plasma technology and colloid technology are widely developed already. In this overview first the basic forces between the particles are discussed, then the phase transitions, the lattice structures and results from active experiments will be presented. Finally the future perspectives will be discussed, from the scientific potential point of view and the experimental approaches in the laboratory and in space. Experiments under microgravity conditions are of great importance, because the microspheres are 10's of billions times heavier than the ions.

  5. Particle physics at the Pierre Auger Observatory

    Directory of Open Access Journals (Sweden)

    Ebr Jan

    2014-01-01

    Full Text Available The Pierre Auger Observatory is the largest detector of ultra-high energy cosmic rays (UHECR in the world. These particles, presumably protons or heavier nuclei of energies up to 1020 eV, initiate extensive air showers which can be detected by sampling the particles that arrive at ground level or observing the fluorescence light generated during the passage of showers through the atmosphere – the Pierre Auger Observatory employs both these techniques. As the center-of-mass energies of the first interactions in the showers can be several orders of magnitude beyond the reach of the LHC, the UHECR provide an unique opportunity to study hadronic interactions. While the uncertainty in modeling these interactions is somewhat degenerate with the unknown composition of the primary beam, interaction models can be tested using data such as the depths of the maxima of the longitudinal development of the showers or their muon content. Particular sensitivity to interaction models is achieved when several observables are combined. Moreover, using careful data selection, proton-air cross section at the c.m.s. energy of 57 TeV per nucleon-nucleon pair can be obtained.

  6. Beacons of discovery the worldwide science of particle physics

    CERN Document Server

    International Committee for Future Accelerators (ICFA)

    2011-01-01

    To discover what our world is made of and how it works at the most fundamental level is the challenge of particle physics. The tools of particle physics—experiments at particle accelerators and underground laboratories, together with observations of space—bring opportunities for discovery never before within reach. Thousands of scientists from universities and laboratories around the world collaborate to design, build and use unique detectors and accelerators to explore the fundamental physics of matter, energy, space and time. Together, in a common world-wide program of discovery, they provide a deep understanding of the world around us and countless benefits to society. Beacons of Discovery presents a vision of the global science of particle physics at the dawn of a new light on the mystery and beauty of the universe.

  7. FINAL REPORT: GEOMETRY AND ELEMENTARY PARTICLE PHYSICS

    Energy Technology Data Exchange (ETDEWEB)

    Singer, Isadore M.

    2008-03-04

    The effect on mathematics of collaborations between high-energy theoretical physics and modern mathematics has been remarkable. Mirror symmetry has revolutionized enumerative geometry, and Seiberg-Witten invariants have greatly simplified the study of four manifolds. And because of their application to string theory, physicists now need to know cohomology theory, characteristic classes, index theory, K-theory, algebraic geometry, differential geometry, and non-commutative geometry. Much more is coming. We are experiencing a deeper contact between the two sciences, which will stimulate new mathematics essential to the physicists’ quest for the unification of quantum mechanics and relativity. Our grant, supported by the Department of Energy for twelve years, has been instrumental in promoting an effective interaction between geometry and string theory, by supporting the Mathematical Physics seminar, postdoc research, collaborations, graduate students and several research papers.

  8. REPORT OF RESEARCH ACCOMPLISHMENTS AND FUTURE GOALS HIGH ENERGY PHYSICS

    Energy Technology Data Exchange (ETDEWEB)

    Wise, Mark B. [California Inst. of Technology (CalTech), Pasadena, CA (United States); Kapustin, Anton N. [California Inst. of Technology (CalTech), Pasadena, CA (United States); Schwarz, John Henry [California Inst. of Technology (CalTech), Pasadena, CA (United States); Carroll, Sean [California Inst. of Technology (CalTech), Pasadena, CA (United States); Ooguri, Hirosi [California Inst. of Technology (CalTech), Pasadena, CA (United States); Gukov, Sergei [California Inst. of Technology (CalTech), Pasadena, CA (United States); Preskill, John [California Inst. of Technology (CalTech), Pasadena, CA (United States); Hitlin, David G. [California Inst. of Technology (CalTech), Pasadena, CA (United States); Porter, Frank C. [California Inst. of Technology (CalTech), Pasadena, CA (United States); Patterson, Ryan B. [California Inst. of Technology (CalTech), Pasadena, CA (United States); Newman, Harvey B. [California Inst. of Technology (CalTech), Pasadena, CA (United States); Spiropulu, Maria [California Inst. of Technology (CalTech), Pasadena, CA (United States); Golwala, Sunil [California Inst. of Technology (CalTech), Pasadena, CA (United States); Zhu, Ren-Yuan [California Inst. of Technology (CalTech), Pasadena, CA (United States)

    2014-08-26

    Caltech High Energy Physics (HEP) has a broad program in both experimental and theoretical physics. We are known for our creativity and leadership. The future is uncertain and we strive to be involved in all the major areas of experimental and theoretical HEP physics so no matter where the important discoveries occur we are well positioned to play an important role. An outstanding group of postdoctoral scholars, graduate students, staff scientists, and technical and administrative personnel support our efforts in experimental and theoretical physics. The PI’s on this grant are involved in the following program of experimental and theoretical activities: I) EXPERIMENTAL PHYSICS Our CMS group, led by Harvey Newman and Maria Spiropulu, has played a key role in the discovery and interpretation of the Higgs boson and in searches for new physics. They have important hardware responsibilities in both ECAL and HCAL and are also involved in the upgrades needed for the High Luminosity LHC. Newman's group also develops and operates Grid-based computing, networking, and collaborative systems for CMS and the US HEP community. The charged lepton (Mu2e) and quark BaBar flavor physics group is led by David Hitlin and Frank Porter. On Mu2e they have been instrumental in the design of the calorimeter. Construction responsibilities include one third of the crystals and associated readout as well as the calibration system. They also will have responsibility for a major part of the online system software. Although data taking ceased in 2008 the Caltech BaBar group is active on several new forefront analyses. The neutrino group is led by Ryan Patterson. They are central to NOvA's core oscillation physics program, to calibration, and to detector readiness being responsible for the production and installation of 12,000 APD arrays. They have key roles in neutrino appearance and disappearance analysis in MINOS and MINOS+. Sunil Golwala leads the dark matter direct detection

  9. Particle and nuclear physics instrumentation and its broad connections

    Science.gov (United States)

    Demarteau, M.; Lipton, R.; Nicholson, H.; Shipsey, I.

    2016-10-01

    Subatomic physics shares with other basic sciences the need to innovate, invent, and develop tools, techniques, and technologies to carry out its mission to explore the nature of matter, energy, space, and time. In some cases, entire detectors or technologies developed specifically for particle physics research have been adopted by other fields of research or in commercial applications. In most cases, however, the development of new devices and technologies by particle physics for its own research has added value to other fields of research or to applications beneficial to society by integrating them in the existing technologies. Thus, detector research and development has not only advanced the current state of technology for particle physics, but has often advanced research in other fields of science and has underpinned progress in numerous applications in medicine and national security. At the same time particle physics has profited immensely from developments in industry and applied them to great benefit for the use of particle physics detectors. This symbiotic relationship has seen strong mutual benefits with sometimes unexpected far reach.

  10. Particle Swarm Optimizaton A Physics-Based Approach

    CERN Document Server

    Mikki, Said M

    2008-01-01

    This work aims to provide new introduction to the particle swarm optimization methods using a formal analogy with physical systems. By postulating that the swarm motion behaves similar to both classical and quantum particles, we establish a direct connection between what are usually assumed to be separate fields of study, optimization and physics. Within this framework, it becomes quite natural to derive the recently introduced quantum PSO algorithm from the Hamiltonian or the Lagrangian of the dynamical system. The physical theory of the PSO is used to suggest some improvements in the algorit

  11. Black hole bombs and explosions: from astrophysics to particle physics

    CERN Document Server

    Cardoso, Vitor

    2013-01-01

    Black holes are the elementary particles of gravity, the final state of sufficiently massive stars and of energetic collisions. With a forty-year long history, black hole physics is a fully-blossomed field which promises to embrace several branches of theoretical physics. Here I review the main developments in highly dynamical black holes with an emphasis on high energy black hole collisions and probes of particle physics via superradiance. This write-up, rather than being a collection of well known results, is intended to highlight open issues and the most intriguing results.

  12. The Future Of Spin Physics At BNL

    Science.gov (United States)

    Aronson, Samuel; Deshpande, Abhay

    2007-06-01

    The Relativistic Heavy Ion Collider (RHIC) at BNL is the world's only polarized proton-proton collider. Collisions at center-of-mass energies up to 500 GeV and beam polarizations approaching 70% (longitudinal or transverse) are provided to two experiments, STAR and PHENIX, at luminosities ⩾ 1032/cm2/sec. Transverse polarized beam has also been provided to the BRAHMS experiment. Measurements that bear on the important question of the spin content of the nucleon are beginning to appear. Over the next 10 years, as the performance of polarized proton running at RHIC is farmer developed, the Spin Physics program at RHIC will provide definitive measurements of the contributions to the proton's spin of the gluon, the sea quarks and the orbital motion of the partons in the proton's wave function. We plan to extend the reach of our study of the role of spin in QCD with the development of "eRHIC," which will provide polarized e-p collisions to a new detector.

  13. Operator Manifold Approach to Geometry and Particle Physics

    CERN Document Server

    Ter-Kazarian, G T

    1996-01-01

    The question that guides our discussion is how did the geometry and particles come into being. The present theory reveals primordial deeper structures underlying fundamental concepts of contemporary physics. We begin with a drastic revision of a role of local internal symmetries in physical concept of curved geometry. A standard gauge principle of local internal symmetries is generalized. The gravitation gauge group is proposed, which is generated by hidden local internal symmetries. Last two parts address to the question of physical origin of geometry and basic concepts of particle physics such as the fields of quarks with the spins and various quantum numbers, internal symmetries and so forth; also four basic principles of Relativity, Quantum, Gauge and Color Confinement, which are, as it was proven, all derivative and come into being simultaneously. The most promising aspect of our approach so far is the fact that many of the important anticipated properties, basic concepts and principles of particle physi...

  14. Symmetry and Relativity : From Classical Mechanics to Modern Particle Physics

    OpenAIRE

    Ajaltouni, Ziad,

    2014-01-01

    to be published in "Natural Science"; The aim of this review is highlighting the common aspects between Symmetry in Physics and the Relativity Theory, particularly Special Relativity. After a brief historical introduction, emphasis is put on the physical foundations of Relativity Theory and its essential role in the clarification of many issues related to fundamental symmetries. Several examples from classical mechanics to modern particle physics will be given and some open questions will be ...

  15. Elementary particle physics at the University of Florida. Annual progress report

    Energy Technology Data Exchange (ETDEWEB)

    1991-12-01

    This report discusses research in the following areas: theoretical elementary particle physics; experimental elementary particle physics; axion project; SSC detector development; and computer acquisition. (LSP).

  16. Santa Cruz Institute for Particle Physics (SCIPP)

    Energy Technology Data Exchange (ETDEWEB)

    Burchat, P.; Dorfan, D.; Litke, A.; Heusch, C.; Sadrozinski, H.; Schalk, T.; Seiden, A.

    1992-01-01

    Work for the coming year is a logical continuation of the efforts of the past year. Some special highlights of this past year which are discusses in more detail in this report are: (1) The move onto beamline and start of ZEUS data taking. (2) The completion of the SDC technical proposal including a detailed long-term plan for construction. (3) Continuing publication of very detailed physics results from ALEPH concerning [tau] and b physics, and a precision measurement of electroweak and QCD parameters. (4) Completion of very successful data taking for E-791 at Fermilab, with nearly twice as many events recorded as initially proposed. (5) First measurement of beam polarization at the SLC. These efforts have led to about 15 physics publications this past year centered mainly on topics related to QCD, couplings of flavors to the Z[degrees], and heavy flavor decays. Taken as a whole, the results in jets from LEP, the ratio of hadronic to leptonic decays of the [tau] the leptonic branching fraction of the J/[psi], and the charmonium mass spectrum provide a very consistent set of values of [alpha][sub s] at a variety of scales. In particular, they show the running of [alpha][sub s] by a factor of about three from m[sub r] to m[sub z]. Results from LEP also provide evidence of the triple gluon vertex. Similarly, the measurement of the b[bar b] fraction of Z[degrees] decays, from the MARK II as well as LEP, provide increasingly better measurements of the Z[degree] coupling to b quarks. Combined with earlier precision measurements of the Z[degrees] mass, width, and leptonic branching fractions, the Z[degrees] decays continue to provide a very precise verification of the Standard Model.

  17. Santa Cruz Institute for Particle Physics (SCIPP)

    Energy Technology Data Exchange (ETDEWEB)

    Burchat, P.; Dorfan, D.; Litke, A.; Heusch, C.; Sadrozinski, H.; Schalk, T.; Seiden, A.

    1992-11-01

    Work for the coming year is a logical continuation of the efforts of the past year. Some special highlights of this past year which are discusses in more detail in this report are: (1) The move onto beamline and start of ZEUS data taking. (2) The completion of the SDC technical proposal including a detailed long-term plan for construction. (3) Continuing publication of very detailed physics results from ALEPH concerning {tau} and b physics, and a precision measurement of electroweak and QCD parameters. (4) Completion of very successful data taking for E-791 at Fermilab, with nearly twice as many events recorded as initially proposed. (5) First measurement of beam polarization at the SLC. These efforts have led to about 15 physics publications this past year centered mainly on topics related to QCD, couplings of flavors to the Z{degrees}, and heavy flavor decays. Taken as a whole, the results in jets from LEP, the ratio of hadronic to leptonic decays of the {tau} the leptonic branching fraction of the J/{psi}, and the charmonium mass spectrum provide a very consistent set of values of {alpha}{sub s} at a variety of scales. In particular, they show the running of {alpha}{sub s} by a factor of about three from m{sub r} to m{sub z}. Results from LEP also provide evidence of the triple gluon vertex. Similarly, the measurement of the b{bar b} fraction of Z{degrees} decays, from the MARK II as well as LEP, provide increasingly better measurements of the Z{degree} coupling to b quarks. Combined with earlier precision measurements of the Z{degrees} mass, width, and leptonic branching fractions, the Z{degrees} decays continue to provide a very precise verification of the Standard Model.

  18. PREFACE: High Energy Particle Physics Workshop (HEPPW2015)

    Science.gov (United States)

    Cornell, Alan S.; Mellado, B.

    2015-10-01

    The motivation for this workshop began with the discovery of the Higgs boson three years ago, and the realisation that many problems remain in particle physics, such as why there is more matter than anti-matter, better determining the still poorly measured parameters of the strong force, explaining possible sources for dark matter, naturalness etc. While the newly discovered Higgs boson seems to be compatible with the Standard Model, current experimental accuracy is far from providing a definitive statement with regards to the nature of this new particle. There is a lot of room for physics beyond the Standard Model to emerge in the exploration of the Higgs boson. Recent measurements in high-energy heavy ion collisions at the LHC have shed light on the complex dynamics that govern high-density quark-gluon interactions. An array of results from the ALICE collaboration have been highlighted in a recent issue of CERN courier. The physics program of high-energy heavy ion collisions promises to further unveil the intricacies of high-density quark-gluon plasma physics. The great topicality of high energy physics research has also seen a rapid increase in the number of researchers in South Africa pursuing such studies, both experimentally through the ATLAS and ALICE colliders at CERN, and theoretically. Young researchers and graduate students largely populate these research groups, with little experience in presenting their work, and few support structures (to their knowledge) to share experiences with. Whilst many schools and workshops have sought to educate these students on the theories and tools they will need to pursue their research, few have provided them with a platform to present their work. As such, this workshop discussed the various projects being pursued by graduate students and young researchers in South Africa, enabling them to develop networks for future collaboration and discussion. The workshop took place at the iThemba Laboratories - North facility, in

  19. J.J. Sakurai Prize for Theoretical Particle Physics: 40 Years of Lattice QCD

    Science.gov (United States)

    Lepage, Peter

    2016-03-01

    Lattice QCD was invented in 1973-74 by Ken Wilson, who passed away in 2013. This talk will describe the evolution of lattice QCD through the past 40 years with particular emphasis on its first years, and on the past decade, when lattice QCD simulations finally came of age. Thanks to theoretical breakthroughs in the late 1990s and early 2000s, lattice QCD simulations now produce the most accurate theoretical calculations in the history of strong-interaction physics. They play an essential role in high-precision experimental studies of physics within and beyond the Standard Model of Particle Physics. The talk will include a non-technical review of the conceptual ideas behind this revolutionary development in (highly) nonlinear quantum physics, together with a survey of its current impact on theoretical and experimental particle physics, and prospects for the future. Work supported by the National Science Foundation.

  20. Wigner particle theory and local quantum physics

    Energy Technology Data Exchange (ETDEWEB)

    Fassarella, Lucio; Schroer, Bert [Centro Brasileiro de Pesquisas Fisicas (CBPF), Rio de Janeiro, RJ (Brazil)]. E-mail: fassarel@cbpf.br; schroer@cbpf.br

    2002-01-01

    Wigner's irreducible positive energy representations of the Poincare group are often used to give additional justifications for the Lagrangian quantization formalism of standard QFT. Here we study another more recent aspect. We explain in this paper modular concepts by which we are able to construct the local operator algebras for all standard positive energy representations directly without going through field coordinations. In this way the artificial emphasis on Lagrangian field coordinates is avoided from the very beginning. These new concepts allow to treat also those cases of 'exceptional' Wigner representations associated with anyons and the famous Wigner spin tower which have remained inaccessible to Lagrangian quantization. Together with the d=1+1 factorizing models (whose modular construction has been studied previously), they form an interesting family of theories with a rich vacuum-polarization structure (but no on shell real particle creation) to which the modular methods can be applied for their explicit construction. We explain and illustrate the algebraic strategy of this construction. We also comment on possibilities of formulating the Wigner theory in a setting of a noncommutativity. (author)

  1. Exceptional quantum geometry and particle physics

    CERN Document Server

    Dubois-Violette, Michel

    2016-01-01

    Based on an interpretation of the quark-lepton symmetry in terms of the unimodularity of the color group $SU(3)$ and on the existence of 3 generations, we develop an argumentation suggesting that the "finite quantum space" corresponding to the exceptional real Jordan algebra of dimension 27 (the Euclidean Albert algebra) is relevant for the description of internal spaces in the theory of particles. In particular, the triality which corresponds to the 3 off-diagonal octonionic elements of the exceptional algebra is associated to the 3 generations of the Standard Model while the representation of the octonions as a complex 4-dimensional space $\\mathbb C\\oplus\\mathbb C^3$ is associated to the quark-lepton symmetry, (one complex for the lepton and 3 for the corresponding quark). More generally it is is suggested that the replacement of the algebra of real functions on spacetime by the algebra of functions on spacetime with values in a finite-dimensional Euclidean Jordan algebra which plays the role of "the algebr...

  2. Particle-physics constraints on multifractal spacetimes

    CERN Document Server

    Calcagni, Gianluca; Rodríguez-Fernández, David

    2016-01-01

    We study electroweak interactions in the multiscale theory with $q$-derivatives, a framework where spacetime has the typical features of a multifractal. In the simplest case with only one characteristic time, length and energy scale $t_*$, $\\ell_*$, and $E_*$, we consider (i) the muon decay rate and (ii) the Lamb shift in the hydrogen atom, and constrain the corrections to the ordinary results. We obtain the independent absolute upper bounds (i) $t_* 35\\,\\text{MeV}$. Under some mild theoretical assumptions, the Lamb shift alone yields the even tighter ranges $t_*450\\,\\text{GeV}$. To date, these are the first robust constraints on the scales at which the multifractal features of the geometry can become important in a physical process.

  3. Summary of workshop on Future Physics with HERA Data

    CERN Document Server

    Bacchetta, A; Behnke, O; Dainton, J; Diehl, M; Hautmann, F; Geiser, A; Jung, H; Karshon, U; Kang, D; Kroll, P; Lee, C; Levonian, S; Levy, A; Lohrmann, E; Moch, S; Motyka, L; McNulty, R; Myronenko, V; Nocera, E R; Plätzer, S; Rostomyan, A; Ruspa, M; Sauter, M; Schnell, G; Schmitt, S; Spiesberger, H; Stewart, I; Turkot, O; Valkárová, A; Wichmann, K; Wing, M; Żarnecki, A F

    2016-01-01

    Recent highlights from the HERA experiments, Hermes, H1 and ZEUS, are reviewed and ideas for future analyses to fully exploit this unique data set are proposed. This document is a summary of a workshop on future physics with HERA data held at DESY, Hamburg at the end of 2014. All areas of HERA physics are covered and contributions from both experimentalists and theorists are included. The document outlines areas where HERA physics can still make a significant contribution, principally in a deeper understanding of QCD, and its relevance to other facilities. Within the framework of the Data Preservation in High Energy Physics, the HERA data have been preserved for analyses to take place over a timescale of 10 years and more. Therefore, although an extensive list of possibilities is presented here, safe storage of the data ensures that it can also be used in the far future should new ideas and analyses be proposed.

  4. Radiative forcing from particle emissions by future supersonic aircraft

    Directory of Open Access Journals (Sweden)

    G. Pitari

    2008-07-01

    Full Text Available In this work we focus on the direct radiative forcing (RF of black carbon (BC and sulphuric acid particles emitted by future supersonic aircraft, as well as on the ozone RF due to changes produced by emissions of both gas species (NOx, H2O and aerosol particles capable of affecting stratospheric ozone chemistry. Heterogeneous chemical reactions on the surface of sulphuric acid stratospheric particles (SSA-SAD are the main link between ozone chemistry and supersonic aircraft emissions of sulphur precursors (SO2 and particles (H2O–H2SO4. Photochemical O3 changes are compared from four independent 3-D atmosphere-chemistry models (ACMs, using as input the perturbation of SSA-SAD calculated in the University of L'Aquila model, which includes on-line a microphysics code for aerosol formation and growth. The ACMs in this study use aircraft emission scenarios for the year 2050 developed by AIRBUS as a part of the EU project SCENIC, assessing options for fleet size, engine technology (NOx emission index, Mach number, range and cruising altitude. From our baseline modeling simulation, the impact of supersonic aircraft on sulphuric acid aerosol and BC mass burdens is 53 and 1.5 μg/m2, respectively, with a direct RF of −11.4 and 4.6 mW/m2 (net RF=−6.8 mW/m2. This paper discusses the similarities and differences amongst the participating models in terms of changes to O3 precursors due to aircraft emissions (NOx, HOx,Clx,Brx and the stratospheric ozone sensitivity to them. In the baseline case, the calculated global ozone change is −0.4 ±0.3 DU, with a net radiative forcing (IR+UV of −2.5± 2 mW/m2. The fraction of this O3-RF attributable to SSA-SAD changes is, however, highly variable among the models, depending on the NOx removal

  5. Magnetic particle imaging: current developments and future directions

    Directory of Open Access Journals (Sweden)

    Panagiotopoulos N

    2015-04-01

    of different theories and technical approaches on the way to the actual implementation of the basic concept of MPI have been seen in the last few years. Research groups around the world are working on different scanner geometries, from closed bore systems to single-sided scanners, and use reconstruction methods that are either based on actual calibration measurements or on theoretical models. This review aims at giving an overview of current developments and future directions in MPI about a decade after its first appearance. Keywords: magnetic particle imaging, superparamagnetic iron oxide nanoparticles, magnetic particle spectrometer, peripheral nerve stimulation, cardiovascular interventions

  6. Science driving facilities for particle physics

    CERN Multimedia

    2011-01-01

    This week, CERN played host to the 10th ICFA (International Committee for Future Accelerators) seminar, which brought together some 200 scientists, government agency representatives and lab directors from around the world to take the pulse of our field. ICFA seminars take place every three years, and this time the emphasis was on science as the driving force for facilities.   The theme of this year’s seminar could not have been more timely. With austerity the global norm, it is more important than ever for science to point the way to the facilities we need, and for the global community to ensure that those facilities are planned at the global level. The LHC is already a machine for the world, and although CERN’s Member States have carried the bulk of the cost, it would not have been possible without contributions from around the globe. In the US, Fermilab’s focus has moved away from the high-energy frontier to the intensity frontier, which is every bit as impor...

  7. Development of Wireless Techniques in Data and Power Transmission - Application for Particle Physics Detectors

    CERN Document Server

    Brenner, R; Dehos, C; De Lurgio, P; Djurcic, Z; Drake, G; Gimenez, J L Gonzalez; Gustafsson, L; Kim, D W; Locci, E; Roehrich, D; Schoening, A; Siligaris, A; Soltveit, H K; Ullaland, K; Vincent, P; Wiednert, D; Yang, S

    2015-01-01

    Wireless techniques have developed extremely fast over the last decade and using them for data and power transmission in particle physics detectors is not science- fiction any more. During the last years several research groups have independently thought of making it a reality. Wireless techniques became a mature field for research and new developments might have impact on future particle physics experiments. The Instrumentation Frontier was set up as a part of the SnowMass 2013 Community Summer Study [1] to examine the instrumentation R&D for the particle physics research over the coming decades: {\\guillemotleft} To succeed we need to make technical and scientific innovation a priority in the field {\\guillemotright}. Wireless data transmission was identified as one of the innovations that could revolutionize the transmission of data out of the detector. Power delivery was another challenge mentioned in the same report. We propose a collaboration to identify the specific needs of different projects that m...

  8. On the golden road : Open access publishing in particle physics

    CERN Document Server

    CERN. Geneva

    2007-01-01

    The particle physics community has over the last 15 years achieved so-called full green open access through the wide dissemination ofpreprints via arXiv, a central subject repository managed by Cornell University. However, green open access does not alleviate the economical difficulties of libraries as these still are expected to offer access to versions of record of the peer-reviewed literature. For this reason the particle physics community is now addressing the issue of gold open access by converting a set of the existing core journals to open access. A working party works now to bring together funding agencies, laboratories and libraries into a single consortium, called SCOAP3 (Sponsoring Consortium for Open access Publishing in Particle Physics). This consortium will engage with publishers towards building a sustainable model for open access publishing. In this model, subscription fees from multiple institutions are replaced with contracts with publishers of open access journals where the SCOAP3 consort...

  9. On the golden road Open access publishing in particle physics

    CERN Document Server

    CERN. Geneva; Yeomans, Joanne

    2007-01-01

    The particle physics community has over the last 15 years achieved so-called full green open access through the wide dissemination ofpreprints via arXiv, a central subject repository managed by Cornell University. However, green open access does not alleviate the economical difficulties of libraries as these still are expected to offer access to versions of record of the peer-reviewed literature. For this reason the particle physics community is now addressing the issue of gold open access by converting a set of the existing core journals to open access. A working party works now to bring together funding agencies, laboratories and libraries into a single consortium, called SCOAP3 (Sponsoring Consortium for Open access Publishing in Particle Physics). This consortium will engage with publishers towards building a sustainable model for open access publishing. In this model, subscription fees from multiple institutions are replaced with contracts with publishers of open access journals where the SCOAP3 consorti...

  10. 2013 Aspen Winter Conference on particle physics: Higgs Quo Vadis

    CERN Document Server

    2013-01-01

    By winter of 2013, the ATLAS and CMS experiments at the LHC will establish their discovery of a new Higgs-like particle with a mass around 125 GeV. The new data will shed light on its properties. Many fundamental questions in Physics will start to get their answer. The 2013 Aspen Winter Conference on particle physics will bring together experimentalists and theorists, creating an ideal environment to present and discuss the implications of the Higgs discovery in the framework of the Standrad Model and beyond. The conference will be formulated to encourage close collaborations and active exchange of information, which is crucial for making progress on this central topic of particle physics.

  11. Atomic physics with highly-charged ions at the future FAIR facility: A status report

    Energy Technology Data Exchange (ETDEWEB)

    Stoehlker, Th. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany) and Institut fuer Kernphysik, University of Frankfurt (Germany)]. E-mail: t.stoehlker@gsi.de; Beyer, H.F. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Braeuning, H. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Braeuning-Demian, A. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Brandau, C. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Hagmann, S. [Institut fuer Kernphysik, University of Frankfurt (Germany); Kozhuharov, C. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Kluge, H.J. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Kuehl, Th. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Liesen, D. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Mann, R. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Noertershaeuser, W. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Quint, W. [Gesellschaft fuer Schwerionenforschung (GSI), Darmstadt (Germany); Schramm, U. [LMU, Munich (Germany); Schuch, R. [Stockholm University, Stockholm (Sweden)

    2007-08-15

    Key features of the future international accelerator Facility for Antiproton and Ion Research (FAIR) offer a range of new and challenging opportunities for atomic physics research in the realm of highly-charged heavy ions and exotic nuclei. Centred on use of FAIR, the Stored Particle Atomic Physics Research Collaboration (SPARC), organized in working groups, has been formed. A short report on the tasks and activities of the various SPARC working groups, devoted to the realization of experimental equipments and set-ups required to reach the physics goals is given.

  12. Atomic physics with highly-charged ions at the future FAIR facility. A status report

    Energy Technology Data Exchange (ETDEWEB)

    Stoehlker, T. [Gesellschaft fuer Schwerionenforschung, Darmstadt (Germany)]|[Frankfurt Univ. (Germany). Inst. fuer Kernphysik; Beyer, H.F.; Braeuning, H. [Gesellschaft fuer Schwerionenforschung, Darmstadt (DE)] (and others)

    2006-11-15

    The key features of the future international accelerator Facility for Antiproton and Ion Research (FAIR) offer a range of new and challenging opportunities for atomic physics research in the realm of highly-charged heavy ions and exotic nuclei. Centred on use of FAIR, the Stored Particle Atomic Physics Research Collaboration (SPARC), organized in working groups, has been formed. A short report on the tasks and activities of the various SPARC working groups, devoted to the realization of experimental equipments and setups required to reach the physics goals is given. (orig.)

  13. Future teachers' relationships with physical and technological environments

    Directory of Open Access Journals (Sweden)

    Diane Pruneau

    2014-10-01

    Full Text Available Is future teachers’ contact with the physical environment significant enough for them to choose to educate their students about sustainability? These digital natives stand out from previous generations by their way of living, working and learning. Does the use of ICT by these young adults contribute to distancing them from the physical environment? Are future teachers, better informed thanks to technology, committed to environmental action? This research based on grounded theory was aimed at understanding future teachers’ relationships with physical and technological environments. The analysis of individual and group interviews with Moncton and Montreal teacher education students reveals that future teachers maintain a sporadic relation to the natural environment. They are still conscious that nature provides them with calmness, rejuvenation, and beauty. The Internet, visited at least two hours daily, offers them distraction, social affiliation, and personalized information, as well as facilitates their tasks and contact with the World. Future teachers are critical and cautious in their use of ICT, but are not much involved in the environmental cause. This research emphasizes the need to work on future teachers’ relationship to the physical environment with outdoor activities to get to know, appreciate, analyze, and improve the natural and urban environments.Key words: education, environment, Social networks,pedagogy.

  14. Beyond Standard Model Physics: At the Frontiers of Cosmology and Particle Physics

    Science.gov (United States)

    Lopez-Suarez, Alejandro O.

    I begin to write this thesis at a time of great excitement in the field of cosmology and particle physics. The aim of this thesis is to study and search for beyond the standard model (BSM) physics in the cosmological and high energy particle fields. There are two main questions, which this thesis aims to address: 1) what can we learn about the inflationary epoch utilizing the pioneer gravitational wave detector Adv. LIGO?, and 2) what are the dark matter particle properties and interactions with the standard model particles?. This thesis will focus on advances in answering both questions.

  15. Model of future officers' availability to the management physical training

    Directory of Open Access Journals (Sweden)

    Olkhovy O.M.

    2012-03-01

    Full Text Available A purpose of work is creation of model of readiness of graduating student to implementation of official questions of guidance, organization and leadthrough of physical preparation in the process of military-professional activity. An analysis is conducted more than 40 sources and questionnaire questioning of a 21 expert. For introduction of model to the system of physical preparation of students the list of its basic constituents is certain: theoretical methodical readiness; functionally-physical readiness; organizationally-administrative readiness. It is certain that readiness of future officers to military-professional activity foresees determination of level of forming of motive capabilities, development of general physical qualities.

  16. Solar, Stellar and Galactic Connections between Particle Physics and Astrophysics

    CERN Document Server

    Carraminana, Alberto

    2007-01-01

    This book collects extended and specialized reviews on topics linking astrophysics and particle physics at a level intermediate between a graduate student and a young researcher. The book includes also three reviews on observational techniques used in forefront astrophysics and short articles on research performed in Latin America. The reviews, updated and written by specialized researchers, describe the state of the art in the related research topics. This book is a valuable complement not only for research but also for lecturers in specialized course of high energy astrophysics, cosmic ray astrophysics and particle physics.

  17. A Brief Note on "Un-Particle" Physics

    Directory of Open Access Journals (Sweden)

    Erwin Goldfain

    2008-07-01

    Full Text Available The possibility of a hidden sector of particle physics that lies beyond the energy range of the Standard Model has been recently advocated by many authors. A bizarre implication of this conjecture is the emergence of a continuous spectrum of massless fields with non-integral scaling dimensions called "un-particles". The purpose of this Letter is to show that the idea of "un-particles" was considered in at least two previous independent publications, prior to its first claimed disclosure.

  18. Shifting standards experiments in particle physics in the twentieth century

    CERN Document Server

    Franklin, Allan

    2013-01-01

    In Shifting Standards, Allan Franklin provides an overview of notable experiments in particle physics. Using papers published in Physical Review, the journal of the American Physical Society, as his basis, Franklin details the experiments themselves, their data collection, the events witnessed, and the interpretation of results. From these papers, he distills the dramatic changes to particle physics experimentation from 1894 through 2009.Franklin develops a framework for his analysis, viewing each example according to exclusion and selection of data; possible experimenter bias; details of the experimental apparatus; size of the data set, apparatus, and number of authors; rates of data taking along with analysis and reduction; distinction between ideal and actual experiments; historical accounts of previous experiments; and personal comments and style.From Millikan’s tabletop oil-drop experiment to the Compact Muon Solenoid apparatus measuring approximately 4,000 cubic meters (not including accelerators) and...

  19. Nuclear and particle physics, astrophysics and cosmology (NPAC) capability review

    Energy Technology Data Exchange (ETDEWEB)

    Redondo, Antonio [Los Alamos National Laboratory

    2010-01-01

    The present document represents a summary self-assessment of the status of the Nuclear and Particle Physics, Astrophysics and Cosmology (NPAC) capability across Los Alamos National Laboratory (LANL). For the purpose of this review, we have divided the capability into four theme areas: Nuclear Physics, Particle Physics, Astrophysics and Cosmology, and Applied Physics. For each theme area we have given a general but brief description of the activities under the area, a list of the Laboratory divisions involved in the work, connections to the goals and mission of the Laboratory, a brief description of progress over the last three years, our opinion of the overall status of the theme area, and challenges and issues.

  20. The cosmic microwave background - A probe of particle physics

    Science.gov (United States)

    Silk, Joseph

    1990-01-01

    The current status of spectral distortions and angular anisotropies in the cosmic microwave background is reviewed, with emphasis on the role played by weakly interacting particle dark matter. Theoretical predictions and recent observational results are described, and prospects for future progress are summarized.

  1. From stringy particle physics to moduli stabilisation and cosmology

    Energy Technology Data Exchange (ETDEWEB)

    Honecker, Gabriele [Institute for Physics (WA THEP) and Cluster of Excellence PRISMA, Johannes Gutenberg University, Mainz (Germany)

    2016-04-15

    Intersecting D6-branes provide a geometrically intuitive road to stringy particle physics models, where D6-branes stuck at orbifold singularities can lead to the stabilisation of deformation moduli, and the QCD axion can arise from the open string sector in a very constrained way compared to pure field theory. We demonstrate this interplay of different physical features here through an explicit model. (copyright 2016 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

  2. Scientific realism in particle physics a causal approach

    CERN Document Server

    Egg, Matthias

    2014-01-01

    Does particle physics really describe the basic constituents of the material world or is it just a useful tool for deriving empirical predictions? This book proposes a novel answer to that question, emphasizing the importance of causal reasoning for the justification of scientific claims. It thereby responds to general worries about scientific realism as well as to more specific challenges stemming from the interpretation of quantum physics.

  3. Frontiers in Particle Physics: From Dark Matter to the LHC and Beyond

    CERN Document Server

    2014-01-01

    With the recent discovery of the Higgs particle, this conference will be devoted to the status of our understanding of the Electroweak symmetry breaking mechanism and related topics. Particular emphasis will be given to the many relevant theories that may be realized in nature, and how these can be tested at the Large Hadron Collider (LHC). The conference will provide a broad overview of the latest results in particle physics, bringing together experimental and theoretical physicists. Additional topics will include: indirect and direct dark matter searches, SUSY searches, top quark physics, exotic phenomena, flavor physics and improved understanding of standard model processes. An important aspect of the conference is to provide a glimpse into the future from the experimental viewpoint, as well as the theoretical one. Registration is from Aspen Center for Physics website (link here).

  4. Professional applied physical training of future specialists of agricultural production

    Directory of Open Access Journals (Sweden)

    Karabanov Y.A.

    2015-01-01

    Full Text Available Purpose : develop and experimentally prove the contents, methods and forms of physical training of future specialists of agricultural production. This takes into account advanced course of professional applied physical preparation means kettlebell sport. Material : The study involved 141 students. Duration of study is 5 years. Results : It was found that a significant increase in indicators of flexibility, strength, coordination abilities of students promoted the use of exercises using weights of different weights. Confirmed the legitimacy of the use of such means of physical education for the development of muscle strength of the upper body, back, legs, abdominals. These muscles are the most loaded in the performance of professional activities of mechanical engineers. Conclusions : The program meets the basic criteria for the formation of curriculum for physical education. The program promotes the development of professional applications of physical qualities, motor skills and improve physical performance of students.

  5. Future trends in cancer therapy with particle accelerators

    CERN Document Server

    Amaldi, Ugo

    2004-01-01

    Hadrontherapy is the radiotherapy technique that uses protons, neutrons or carbon ions. Protons and ions, being, heavy charged particles, allow a more conformal treatment than X-rays and thus spare better the surrounding healthy tissues. By now about 35000 patients have been treated worldwide with protons and about 1600 with carbon ions. Since few years protontherapy of deep-seated tumours is booming with two hospital centres running in USA and three under construction. Four centres are treating patients in Japan. The list of constructions going on elsewhere is long: two in China, one, in Germany, one in Korea, one in Switzerland. But the future hopes for a qualitatively different radiotherapy are centred on carbon ions: they have a larger biological effectiveness than X-rays and protons and are particularly suited to treat radio resistant tumours, as indicated by the encouraging results obtained on about 1400 patients in HIMAC (Chiba, Japan) and on about 200 patients at GSI (Darmstadt). Two carbon centres ar...

  6. Attitudes towards disability showed by future physical education teachers

    OpenAIRE

    Jorge Abellán Hernández

    2015-01-01

    The present paper aims to study the attitudes towards disability of future physical education teachers. For this purpose two questionnaires were administered and the results were compared by gender (male and female), the participants' experience in dealing with people with disabilities and the particants’ course level (third or fourth grade). The results show that students in the Minor in Physical Education have a very positive attitude towards disability. Men obtain a more positive attitude ...

  7. Attitudes towards disability showed by future physical education teachers

    OpenAIRE

    Jorge Abellán Hernández

    2015-01-01

    The present paper aims to study the attitudes towards disability of future physical education teachers. For this purpose two questionnaires were administered and the results were compared by gender (male and female), the participants' experience in dealing with people with disabilities and the particants’ course level (third or fourth grade). The results show that students in the Minor in Physical Education have a very positive attitude towards disability. Men obtain a more positive attitude ...

  8. Research in elementary particle physics. [Ohio State Univ. , Columbus

    Energy Technology Data Exchange (ETDEWEB)

    1992-01-01

    Experimental and theoretical work on high energy physics is reviewed. Included are preparations to study high-energy electron-proton interactions at HERA, light-cone QCD, decays of charm and beauty particles, neutrino oscillation, electron-positron interactions at CLEO II, detector development, and astrophysics and cosmology.

  9. Unfolding in particle physics: a window on solving inverse problems

    Directory of Open Access Journals (Sweden)

    Spanò Francesco

    2013-07-01

    Full Text Available Unfolding is the ensemble of techniques aimed at resolving inverse, ill-posed problems. A pedagogical introduction to the origin and main problems related to unfolding is presented and used as the the stepping stone towards the illustration of some of the most common techniques that are currently used in particle physics experiments.

  10. Large extra dimensions a new arena for particle physics

    CERN Multimedia

    Arkani-Hamed, N; Savas-Divali, G

    2002-01-01

    "This article examines the information accumulated so far and the impact of forthcoming new advances in particle physics research on the current supersymmetric standard model. The new premise is that there is no desert at all and that the electroweak unification energy is the only fundamental energy scale in nature" (2 pages).

  11. Mean particle diameters: from statistical definition to physical understanding

    NARCIS (Netherlands)

    Alderliesten, M.

    2008-01-01

    Mean particle diameters are important for the science of particulate systems. This thesis deals with a definition system for these mean diameters, called Moment-Ratio (M-R) definition system, and provides a general statistical and physical basis. Also, the current DIN/ISO definition system is discus

  12. My 50 years of research in particle physics.

    Science.gov (United States)

    Sugawara, Hirotaka

    2010-01-01

    Some of my work of the last 50 years in the field of theoretical particle physics is described with particular emphasis on the motivation, the process of investigation, relationship to the work of others, and its impact. My judgment is unavoidably subjective, although I do present the comments of other researchers as much as possible.

  13. Worlds largest particle physics laboratory selects Proxim Wireless Mesh

    CERN Multimedia

    2007-01-01

    "Proxim Wireless has announced that the European Organization for Nuclear Research (CERN), the world's largest particle physics laboratory and the birthplace of the World Wide Web, is using it's ORiNOCO AP-4000 mesh access points to extend the range of the laboratory's Wi-Fi network and to provide continuous monitoring of the lab's calorimeters" (1/2 page)

  14. Space- and ground-based particle physics meet at CERN

    CERN Document Server

    CERN Bulletin

    2012-01-01

    The fourth international conference on Particle and Fundamental Physics in Space (SpacePart12) will take place at CERN from 5 to 7 November. The conference will bring together scientists working on particle and fundamental physics in space and on ground, as well as space policy makers from around the world.   One hundred years after Victor Hess discovered cosmic rays using hot air balloons, the experimental study of particle and fundamental physics is still being pursued today with extremely sophisticated techniques: on the ground, with state-of-the-art accelerators like the LHC; and in space, with powerful observatories that probe, with amazing accuracy, the various forms of cosmic radiation, charged and neutral, which are messengers of the most extreme conditions of matter and energy. SpacePart12 will be the opportunity for participants to exchange views on the progress of space-related science and technology programmes in the field of particle and fundamental physics in space. SpacePar...

  15. New chair for the Particle Physics and Astronomy Research Council

    CERN Multimedia

    2001-01-01

    Peter Warry has been appointed as Chair of PPARC for the next 4 years. Chairman of Victrex plc, whose business is in speciality chemicals, he has been an Industrial Professor at the University of Warwick since 1993. PPARC pursues a programme of high quality basic research in particle physics, astronomy, cosmology and space science and its budget for 2002 is approximately 220 million GBP.

  16. Particles and nuclei an introduction to the physical concepts

    CERN Document Server

    Povh, Bogdan; Scholz, Christoph; Zetsche, Frank; Rodejohann, Werner

    2015-01-01

    This well-known introductory textbook gives a uniform presentation of nuclear and particle physics from an experimental point of view.   The first part, Analysis, is devoted to disentangling the substructure of matter. This part shows that experiments designed to uncover the substructures of nuclei and nucleons have a similar conceptual basis, and lead to the present picture of all matter being constructed from a small number of elementary building blocks and a small number of fundamental interactions.   The second part, Synthesis, shows how the elementary particles may be combined to build hadrons and nuclei. The fundamental interactions, which are responsible for the forces in all systems, become less and less evident in increasingly complex systems. Such systems are in fact dominated by many-body phenomena. A section on neutrino oscillations and one on nuclear matter at high temperatures bridge the field of "nuclear and particle physics" and "modem astrophysics and cosmology.   The seventh revised and e...

  17. Particles and Nuclei an introduction to the physical concepts

    CERN Document Server

    Povh, B; Scholz, C; Zetsche, F

    2008-01-01

    This well-established textbook gives a uniform and unique presentation of both nuclear and particle physics. Analysis, Part 1, is devoted to disentangling the substructure of matter. This part shows that experiments designed to uncover the substructures of nuclei and nucleons have a similar conceptual basis, and lead to the present picture of all matter being built out of a small number of elementary building blocks and a small number of fundamental interactions. Synthesis, Part 2, shows how the elementary particles may be combined to build hadrons and nuclei. The fundamental interactions responsible for the forces in all systems become less and less evident in increasingly complex systems. A section on neutrino oscillations and one on nuclear matter at high temperatures bridge the field of "nuclear and particle physics" and "modern astrophysics and cosmology". The new edition incorporates a large amount of new experimental results on deep inelastic scattering (obtained at the Electron-Proton Collider HERA at...

  18. Particles and Nuclei An Introduction to the Physical Concepts

    CERN Document Server

    Povh, Bogdan; Scholz, Christoph; Zetsche, Frank

    2006-01-01

    This well-known introductory textbook gives a uniform presentation of nuclear and particle physics from an experimental point of view. The new edition has been extensively revised and updated. The first part, Analysis, is devoted to disentangling the substructure of matter. This part shows that experiments designed to uncover the substructures of nuclei and nucleons have a similar conceptual basis, and lead to the present picture of all matter being constructed from a small number of elementary building blocks and a small number of fundamental interactions. The second part, Synthesis, shows how the elementary particles may be combined to build hadrons and nuclei. The fundamental interactions, which are responsible for the forces in all systems, become less and less evident in increasingly complex systems. Such systems are in fact dominated by many-body phenomena. A section on neutrino oscillations and one on nuclear matter at high temperatures bridge the field of "nuclear and particle physics" and "modern ast...

  19. Current experiments in elementary particle physics. Revision 1-85

    Energy Technology Data Exchange (ETDEWEB)

    Wohl, C.G.; Armstrong, F.E.; Rittenberg, A.; Trippe, T.G.; Yost, G.P.; Oyanagi, Y.; Dodder, D.C.; Grudtsin, S.N.; Ryabov, Yu.G.; Frosch, R.

    1985-01-01

    This report contains summaries of 551 approved experiments in elementary particle physics (experiments that finished taking data before 1 January 1980 are excluded). Included are experiments at Brookhaven, CERN, CESR, DESY, Fermilab, Moscow Institute of Theoretical and Experimental Physics, Tokyo Institute of Nuclear Studies, KEK, LAMPF, Leningrad Nuclear Physics Institute, Saclay, Serpukhov, SIN, SLAC, and TRIUMF, and also experiments on proton decay. Properties of the fixed-target beams at most of the laboratories are summarized. Instructions are given for searching online the computer database (maintained under the SLAC/SPIRES system) that contains the summaries.

  20. An introduction to particle physics and the standard model

    CERN Document Server

    Mann, Robert

    2010-01-01

    … thoroughly recommended for a final-year specialist or first-year postgraduate study level especially for those engaged in experimental high energy physics research. The author has performed an excellent service in making accessible the language and results of field theory applied to elementary particle physics.-John J. Quenby, Contemporary Physics, 52, 2011The first chapter shows how clearly the author can write and even though the subject matter gets more complex through the book, the clarity continues. … giv[es] readers greater insights into how the maths and the reality match (or don't ma

  1. Particle acceleration, transport and turbulence in cosmic and heliospheric physics

    Science.gov (United States)

    Matthaeus, W.

    1992-01-01

    In this progress report, the long term goals, recent scientific progress, and organizational activities are described. The scientific focus of this annual report is in three areas: first, the physics of particle acceleration and transport, including heliospheric modulation and transport, shock acceleration and galactic propagation and reacceleration of cosmic rays; second, the development of theories of the interaction of turbulence and large scale plasma and magnetic field structures, as in winds and shocks; third, the elucidation of the nature of magnetohydrodynamic turbulence processes and the role such turbulence processes might play in heliospheric, galactic, cosmic ray physics, and other space physics applications.

  2. 2D Detectors for Particle Physics and for Imaging Applications

    CERN Document Server

    Krüger, H

    2005-01-01

    The demands on detectors for particle detection as well as for medical and astronomical X-ray imaging are continuously pushing the development of novel pixel detectors. The state of the art in pixel detector technology to date are hybrid pixel detectors in which sensor and read-out integrated circuits are processed on different substrates and connected via high density interconnect structures. While these detectors are technologically mastered such that large scale particle detectors can be and are being built, the demands for improved performance for the next generation particle detectors ask for the development of monolithic or semi-monolithic approaches. Given the fact that the demands for medical imaging are different in some key aspects, developments for these applications, which started as particle physics spin-off, are becomming rather independent. New approaches are leading to novel signal processing concepts and interconnect technologies to satisfy the need for very high dynamic range and large area ...

  3. Particle radiosurgery: a new frontier of physics in medicine.

    Science.gov (United States)

    Bert, Christoph; Durante, Marco

    2014-07-01

    Radiosurgery was introduced over half a century ago for treatment of intracranial lesions. In more recent years, stereotactic radiotherapy has rapidly advanced and is now commonly used for treatments of both cranial and extracranial lesions with high doses delivered in a few, down to a single fraction. The results of a workshop on Particle radiosurgery: A new frontier of physics in medicine held at Obergurgl, Austria during August 25-29 2013 are summarized in this issue with an overview presented in this paper. The focus was laid on particle radiosurgery but the content also includes current practice in x-ray radiosurgery and the overarching research in radiobiology and motion management for extracranial lesions. The results and discussions showed that especially research in radiobiology of high-dose charged-particles and motion management are necessary for the success of particle radiosurgery.

  4. Particle Physics in High School: A Diagnose Study.

    Science.gov (United States)

    Tuzón, Paula; Solbes, Jordi

    2016-01-01

    The science learning process improves when the contents are connected to students' lives. Particle physics has had a great impact in our society in the last years and has changed the theoretical picture about matter fundamental dynamics. Thus, we think that academic contents about matter components and interactions should be updated. With this study we aim to characterize the level of knowledge of high school students about this topic. We built a test with questions about classical atomic models, particle physics, recent discoveries, social implications and students opinions about it. Contrary to our first suspicion, students' answers show a high variability. They have new physics ideas and show a great interest towards modern concepts. We suggest including an updated view of this topic as part of the curriculum.

  5. Particle Physics in High School: A Diagnose Study.

    Directory of Open Access Journals (Sweden)

    Paula Tuzón

    Full Text Available The science learning process improves when the contents are connected to students' lives. Particle physics has had a great impact in our society in the last years and has changed the theoretical picture about matter fundamental dynamics. Thus, we think that academic contents about matter components and interactions should be updated. With this study we aim to characterize the level of knowledge of high school students about this topic. We built a test with questions about classical atomic models, particle physics, recent discoveries, social implications and students opinions about it. Contrary to our first suspicion, students' answers show a high variability. They have new physics ideas and show a great interest towards modern concepts. We suggest including an updated view of this topic as part of the curriculum.

  6. Trends toward the Future in Physical Activity Programming

    Science.gov (United States)

    Charles, John M.; Charles, P. Kelly

    2016-01-01

    In the wake of multiple activity program eliminations and frequent downgrading of activity programs nationwide, the question to be addressed is how we can draw upon our interdisciplinary, intergenerational, and intercultural understandings of human movement to construct physical activity programs for the future that might withstand the test of…

  7. Keynote address: High energy physics in 2014 and its future

    Indian Academy of Sciences (India)

    G Rajasekaran

    2016-02-01

    After a brief history, we focus on the present status of HEP and its possible future. Ideas to ensure a healthy growth of HEP in India are discussed. This involves a few major experimental projects in fundamental physics. None of these projects can succeed unless the crucial problem of manpower is solved. A few suggestions are offered towards this aim.

  8. Future of computing technology in physics - the potentials and pitfalls

    Energy Technology Data Exchange (ETDEWEB)

    Brenner, A.E.

    1984-02-01

    The impact of the developments of modern digital computers is discussed, especially with respect to physics research in the future. The effects of large data processing capability and increasing rates at which data can be acquired and processed are considered. (GHT)

  9. The low-energy frontier of particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Jaeckel, Joerg [Durham Univ. (United Kingdom). Inst. for Particle Physics Phenomenology; Ringwald, Andreas [Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)

    2010-02-15

    Most embeddings of the Standard Model into a more unified theory, in particular the ones based on supergravity or superstrings, predict the existence of a hidden sector of particles which have only very weak interactions with the visible sector Standard Model particles. Some of these exotic particle candidates (such as e.g. ''axions'', ''axion-like particles'' and ''hidden U(1) gauge bosons'') may be very light, with masses in the sub-eV range, and have very weak interactions with photons. Correspondingly, these very weakly interacting sub-eV particles (WISPs) may lead to observable effects in experiments (as well as in astrophysical and cosmological observations) searching for light shining through a wall, for changes in laser polarisation, for non-linear processes in large electromagnetic fields and for deviations from Coulomb's law. We present the physics case and a status report of this emerging low-energy frontier of fundamental physics. (orig.)

  10. Physical facets of ultrasonic cavitational synthesis of zinc ferrite particles.

    Science.gov (United States)

    Reddy, Bhaskar Rao; Sivasankar, Thirugnanasambandam; Sivakumar, Manickam; Moholkar, Vijayanand S

    2010-02-01

    This paper addresses the physical features of the ultrasonic cavitational synthesis of zinc ferrite particles and tries to establish the relationship between cavitation physics and sonochemistry of the zinc ferrite synthesis. A dual approach of coupling experimental results with simulations of radial motion of cavitation bubbles has been adopted. The precursors for the zinc ferrite, viz. ZnO and Fe(3)O(4) are produced in situ by the hydrolysis of Zn and Fe(II) acetates stimulated by (*)OH radicals produced from the transient collapse of the cavitation bubbles. Experiments performed under different conditions create significant variation in the production of (*)OH radicals, and hence, the rate of acetate hydrolysis. Correlation of the results of experiments and simulations sheds light on the important facets of the physical mechanism of ultrasonic cavitational zinc ferrite synthesis. It is revealed that too much or too little rate of acetate hydrolysis results in smaller particle size of zinc ferrite. The first effect of a higher rate of hydrolysis leads to excessively large growth of particles, due to which they become susceptible to the disruptive action of cavitation bubbles. Whereas, the second effect of too small rate of hydrolysis of Zn and Fe(II) acetates restricts the growth of particles. It has been observed that the initial reactant concentration does not influence the mean particle size or the size distribution of zinc ferrite particles. The present investigation clearly confirms that the rate-controlling step of zinc ferrite synthesis through ultrasonic cavitational route is the rate of formation of (*)OH radicals from cavitation bubbles.

  11. A guide to experimental particle physics literature, 1991-1996

    Energy Technology Data Exchange (ETDEWEB)

    Ezhela, V.V.; Filimonov, B.B.; Lugovsky, S.B. [Inst. for High Energy Physics, Moscow (Russian Federation)] [and others

    1996-10-01

    We present an indexed guide to experimental particle physics literature for the years 1991 - 1996. Approximately 4200 papers are indexed by (1) Beam/Target/Momentum (2) Reaction/Momentum/Data-Descriptor (including the final state) (3) Particle/Decay (4) Accelerator/Experiment/Detector. All indices are cross-referenced to the paper`s title and references in the ID/Reference/Title index. The information presented in this guide is also publicly available on a regularly-updated DATAGUIDE database from the World Wide Web.

  12. Physical therapy in Parkinson's disease: evolution and future challenges.

    Science.gov (United States)

    Keus, Samyra H J; Munneke, Marten; Nijkrake, Maarten J; Kwakkel, Gert; Bloem, Bastiaan R

    2009-01-15

    Even with optimal medical management using drugs or neurosurgery, patients with Parkinson's disease (PD) are faced with progressively increasing mobility problems. For this reason, many patients require additional physical therapy. Here, we review the professional evolution and scientific validation of physical therapy in PD, and highlight several future challenges. To gain insight in ongoing, recently completed or published trials and systematic reviews, we performed a structured literature review and contacted experts in the field of physical therapy in PD. Following publication of the first controlled clinical trial in 1981, the quantity and quality of clinical trials evaluating the efficacy of physical therapy in PD has evolved rapidly. In 2004 the first guideline on physical therapy in PD was published, providing recommendations for evidence-based interventions. Current research is aiming to gather additional evidence to support specific intervention strategies such as the prevention of falls, and to evaluate the implementation of evidence into clinical practice. Although research focused on physical therapy for PD is a relatively young field, high-quality supportive evidence is emerging for specific therapeutic strategies. We provide some recommendations for future research, and discuss innovative strategies to improve the organization of allied health care in PD, making evidence-based care available to all PD patients.

  13. Particle beam radiation therapy:re-introducing the future

    Institute of Scientific and Technical Information of China (English)

    Omar Abdel-Rahman

    2014-01-01

    Particle radiation therapy is an exciting area of radiotherapy basic and clinical researches. The majority of particle radiotherapy work is being done with proton beams having essential y the same radiobiologic properties as conventional photon/electron radiation but al owing a much more precise control of the radiation dose distribution. However, other charged particles are also playing an increasing role, like neutrons. In this review article we wil summarize the data related to basic and clinical experiences related to particle beam radiation therapy.

  14. Towards the european strategy for particle physics : The briefing book

    NARCIS (Netherlands)

    Akesson, T.; Aleksan, R.; Allanach, B.; Bertolucci, S.; Blondel, A.; Butterworth, J.; Cavalli-Sforza, M.; Cervera, A.; de Naurois, M.; Desch, K.; Egede, U.; Heuer, R.; Hoecker, A.; Huber, P.; Jungmann, K.; Linde, F.; Lombardi, A.; Mangano, M.; Mezzetto, M.; Onderwater, G.; Palanque-Delabrouille, N.; Peach, K.; Polosa, A.; Rondio, E.; Webber, B.; Weiglein, G.; Womersley, J.

    2007-01-01

    This document was prepared as part of the briefing material for the Workshop of the CERN Council Strategy Group, held in DESY Zeuthen from 2nd to 6th May 2006. It gives an overview of the physics issues and of the technological challenges that will shape the future of the field, and incorporates mat

  15. From Special Relativity to Feynman Diagrams A Course of Theoretical Particle Physics for Beginners

    CERN Document Server

    D'Auria, Riccardo

    2012-01-01

    This books aims at filling a gap between the basics courses of classical and quantum mechanics and advanced courses of (relativistic) quantum mechanics and field theory. Particular emphasis is given to the role of symmetry in modern theoretical physics. For this reason this book is particularly suited to those students who are interested in a deeper knowledge of modern developments in elementary particle physics and relativity, even if they choose not to specialize in this branch of research. This target of readers includes, besides experimental and applied physicists, also those engineers who need advanced notions of theoretical high energy physics, in view of future research activity in the field theory approach to condensed matter, in accelerator physics and in all those modern technology sectors which require a more advanced and sophisticated theoretical physics background. Courses motivated by these objectives are present in several polytechnic institutes around the world. The last chapters of this book,...

  16. Particles and fundamental interactions supplements, problems and solutions : a deeper insight into particle physics

    CERN Document Server

    Braibant, Sylvie; Spurio, Maurizio

    2012-01-01

    This volume is an exercises and solutions manual that complements  the book "Particles and Fundamental Interactions" by Sylvie Braibant, Giorgio Giacomelli, and Maurizio Spurio.  It aims to give additional intellectual stimulation for students in experimental particle physics. It will be a helpful companion in the preparation of a written examination, but also it provides a means to gaining a deeper understanding of high energy physics. The problems proposed are sometimes true and important research questions, which are described and solved in a step-by-step manner. In addition to the problems and solutions, this book offers fifteen Supplements that give further insight into topical subjects related to particle accelerators, signal and data acquisition systems and computational methods to treat them.

  17. Heavy-ion physics studies for the Future Circular Collider

    Science.gov (United States)

    Armesto, N.; Dainese, A.; d'Enterria, D.; Masciocchi, S.; Roland, C.; Salgado, C. A.; van Leeuwen, M.; Wiedemann, U. A.

    2014-11-01

    The Future Circular Collider (FCC) design study is aimed at assessing the physics potential and the technical feasibility of a new collider with centre-of-mass energies, in the hadron-hadron collision mode including proton and nucleus beams, more than seven times larger than the nominal LHC energies. An electron-positron collider in the same tunnel is also considered as an intermediate step, which in the long term would allow for electron-hadron collisions. First ideas on the physics opportunities with heavy ions at the FCC are presented, covering the physics of quark-gluon plasma, gluon saturation, photon-induced collisions, as well as connections with the physics of ultra-high-energy cosmic rays.

  18. Heavy-ion physics studies for the Future Circular Collider

    Energy Technology Data Exchange (ETDEWEB)

    Armesto, N. [Departamento de Física de Partículas and IGFAE, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Galicia (Spain); Dainese, A., E-mail: andrea.dainese@pd.infn.it [INFN — Sezione di Padova, 35131 Padova (Italy); D' Enterria, D. [Physics Department, CERN, CH-1211 Genéve 23 (Switzerland); Masciocchi, S. [EMMI and GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Darmstadt (Germany); Roland, C. [Massachusetts Institute of Technology, Cambridge, MA 02139-4307 (United States); Salgado, C.A. [Departamento de Física de Partículas and IGFAE, Universidade de Santiago de Compostela, 15706 Santiago de Compostela, Galicia (Spain); Leeuwen, M. van [Nikhef, National Institute for Subatomic Physics and Institute for Subatomic Physics of Utrecht University, Utrecht (Netherlands); Wiedemann, U.A. [Physics Department, CERN, CH-1211 Genéve 23 (Switzerland)

    2014-11-15

    The Future Circular Collider (FCC) design study is aimed at assessing the physics potential and the technical feasibility of a new collider with centre-of-mass energies, in the hadron–hadron collision mode including proton and nucleus beams, more than seven times larger than the nominal LHC energies. An electron–positron collider in the same tunnel is also considered as an intermediate step, which in the long term would allow for electron–hadron collisions. First ideas on the physics opportunities with heavy ions at the FCC are presented, covering the physics of quark–gluon plasma, gluon saturation, photon-induced collisions, as well as connections with the physics of ultra-high-energy cosmic rays.

  19. Physical perfection of future specialists to the management.

    Directory of Open Access Journals (Sweden)

    Dolinnyj U.A.

    2012-12-01

    Full Text Available The process of leadthrough of practical employments is considered on physical education on an experimental model, which are directed on the increase of reserve possibilities of organism of future specialists of management. In an experiment took part 30 students of 2 and 3 courses. It is set that management specialists for high-quality implementation of work need a high mental capacity, enhanceable psychoemotional firmness, general endurance. Directions of prophylaxis of emotional and physical overstrain are recommended, increases of level of positive motivation to systematic employments by physical exercises. It is marked that an experimental model in combination with the fixed form of leadthrough of employments on a body-conditioning and employments on specialization of the chosen type of sport is one the stages of alteration organizationally of methodical aspects of physical culture.

  20. Future physics potential of CMS Phase II detector

    CERN Document Server

    Pozzobon, Nicola

    2015-01-01

    To extend the LHC physics program, it is foreseen to operate the LHC in the future with an unprecedented high luminosity. To maintain the experiment’s physics potential in such harsh environment, the detector will need to be upgraded. At the same time the detector acceptance will be extended and new features such as a L1 track trigger will be implemented. Simulation studies evaluated the performance of the new, proposed detector components in comparison to the present detector with the expected aging after 1000 fb$^{-1}$. The impact of the expected Phase II performance on representative physics channels is studied. The sensitivity to find new physics beyond the SM is significantly improved and will allow to extend the SUSY reach, search for dark matter and exotic long-lived signatures. Precision Higgs and standard model measurements will gain substantially due to the improved performance.

  1. Review of lattice results concerning low-energy particle physics

    OpenAIRE

    Aoki, S.; Aoki, Y.; Bernard, C.; Blum, T.(RIKEN BNL Research Center, Brookhaven National Laboratory, 11973, Upton, NY, USA); Colangelo, G.; Della Morte, M.; Dürr, S.; El-Khadra, A. X.; Fukaya, H.; Horsley, R.; Jüttner, A.; Kaneko, T.(High Energy Accelerator Research Organization (KEK), 305-0801, Ibaraki, Japan); Laiho, J.; Lellouch, L.; Leutwyler, H.

    2014-01-01

    We review lattice results related to pion, kaon, D - and B -meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0) , arising in semileptonic K→π transition at zero momentum transfer, as well as the decay-constant ratio fK/fπ of decay constants and its consequences for the CKM matrix elements Vus and Vud . Furthermore, we describe the results obtained on th...

  2. Review of lattice results concerning low-energy particle physics

    OpenAIRE

    Aoki, S.; Aoki, Y.; Jüttner, A.; Kaneko, T.(High Energy Accelerator Research Organization (KEK), 305-0801, Ibaraki, Japan); Laiho, J.; Lellouch, L.; Leutwyler, H.; Lubicz, V.; Lunghi, E.; Necco, S.; Onogi, T.; Pena., C; Bernard, C.; Sachrajda, C. T.; Sharpe, S. R.

    2014-01-01

    We review lattice results related to pion, kaon, TeX - and TeX -meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the light-quark masses, the form factor TeX , arising in semileptonic TeX transition at zero momentum transfer, as well as the decay-constant ratio TeX of decay constants and its consequences for the CKM matrix elements TeX and TeX . Furthermore, we describe the results obtained on th...

  3. Review of lattice results concerning low-energy particle physics

    OpenAIRE

    Aoki, S.; Aoki, Y.; Bernard, C.; Blum, T.(RIKEN BNL Research Center, Brookhaven National Laboratory, 11973, Upton, NY, USA); Colangelo, G.; Della Morte, M.; Dürr, S.; El-Khadra, A. X.; Fukaya, H.; Horsley, R.; Jüttner, A.; Kaneko, T.(High Energy Accelerator Research Organization (KEK), 305-0801, Ibaraki, Japan); Laiho, J.; Lellouch, L.; Leutwyler, H.

    2014-01-01

    We review lattice results related to pion, kaon D - and B -meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0) arising in semileptonic K→π transition at zero momentum transfer, as well as the decay-constant ratio fK/fπ of decay constants and its consequences for the CKM matrix elements Vus and Vud . Furthermore, we describe the results obtained on the l...

  4. The strong interactions beyond the standard model of particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Bergner, Georg [Muenster Univ. (Germany). Inst. for Theoretical Physics

    2016-11-01

    SuperMUC is one of the most convenient high performance machines for our project since it offers a high performance and flexibility regarding different applications. This is of particular importance for investigations of new theories, where on the one hand the parameters and systematic uncertainties have to be estimated in smaller simulations and on the other hand a large computational performance is needed for the estimations of the scale at zero temperature. Our project is just the first investigation of the new physics beyond the standard model of particle physics and we hope to proceed with our studies towards more involved Technicolour candidates, supersymmetric QCD, and extended supersymmetry.

  5. Group theory in particle, nuclear, and hadron physics

    CERN Document Server

    Abbas, Syed Afsar

    2016-01-01

    This user-friendly book on group theory introduces topics in as simple a manner as possible and then gradually develops those topics into more advanced ones, eventually building up to the current state-of-the-art. By using simple examples from physics and mathematics, the advanced topics become logical extensions of ideas already introduced. In addition to being used as a textbook, this book would also be useful as a reference guide for graduates and researchers in particle, nuclear and hadron physics.

  6. Unified relativistic physics from a standing wave particle model

    CERN Document Server

    Vera, R A

    1995-01-01

    An extremely simple and unified base for physics comes out by starting all over from a single postulate on the common nature of matter and stationary forms of radiation quanta. Basic relativistic, gravitational (G) and quantum mechanical properties of a standing wave particle model have been derived. This has been done from just dual properties of radiation's and strictly homogeneous relationships for nonlocal cases in G fields. This way reduces the number of independent variables and puts into relief (and avoid) important inhomogeneity errors of some G theories. It unifies and accounts for basic principles and postulates physics. The results for gravity depend on linear radiation properties but not on arbitrary field relations. They agree with the conventional tests. However they have some fundamental differences with current G theories. The particle model, at a difference of the conventional theories, also fixes well-defined cosmological and astrophysical models that are different from the rather convention...

  7. Academic Training Lecture: Statistical Methods for Particle Physics

    CERN Multimedia

    PH Department

    2012-01-01

    2, 3, 4 and 5 April 2012 Academic Training Lecture  Regular Programme from 11:00 to 12:00 -  Bldg. 222-R-001 - Filtration Plant Statistical Methods for Particle Physics by Glen Cowan (Royal Holloway) The series of four lectures will introduce some of the important statistical methods used in Particle Physics, and should be particularly relevant to those involved in the analysis of LHC data. The lectures will include an introduction to statistical tests, parameter estimation, and the application of these tools to searches for new phenomena.  Both frequentist and Bayesian methods will be described, with particular emphasis on treatment of systematic uncertainties.  The lectures will also cover unfolding, that is, estimation of a distribution in binned form where the variable in question is subject to measurement errors.

  8. UCLA Particle Physics Research Group annual progress report

    Energy Technology Data Exchange (ETDEWEB)

    Nefkens, B.M.K.

    1983-11-01

    The objectives, basic research programs, recent results, and continuing activities of the UCLA Particle Physics Research Group are presented. The objectives of the research are to discover, to formulate, and to elucidate the physics laws that govern the elementary constituents of matter and to determine basic properties of particles. The research carried out by the Group last year may be divided into three separate programs: (1) baryon spectroscopy, (2) investigations of charge symmetry and isospin invariance, and (3) tests of time reversal invariance. The main body of this report is the account of the techniques used in our investigations, the results obtained, and the plans for continuing and new research. An update of the group bibliography is given at the end.

  9. Gauge theories in particle physics a practical introduction

    CERN Document Server

    Aitchison, Ian J R

    2013-01-01

    The fourth edition of this well-established, highly regarded two-volume set continues to provide a fundamental introduction to advanced particle physics while incorporating substantial new experimental results, especially in the areas of CP violation and neutrino oscillations. It offers an accessible and practical introduction to the three gauge theories included in the Standard Model of particle physics: quantum electrodynamics (QED), quantum chromodynamics (QCD), and the Glashow-Salam-Weinberg (GSW) electroweak theory. In the first volume, a new chapter on Lorentz transformations and discrete symmetries presents a simple treatment of Lorentz transformations of Dirac spinors. Along with updating experimental results, this edition also introduces Majorana fermions at an early stage, making the material suitable for a first course in relativistic quantum mechanics. Covering much of the experimental progress made in the last ten years, the second volume remains focused on the two non-Abelian quantum gauge field...

  10. A Masterclass in Particle Physics for High School Students

    Science.gov (United States)

    Cecire, Kenneth; Entwistle, T.

    2006-12-01

    The European Particle Physics Outreach Group (EPPOG) developed the Masterclass in 2004 to bring particle physics to high school classrooms in Europe. They put real data on a website (http://wyp.teilchenphysik.org/mc.htm) from the Large Electron-Positron (LEP) collider at CERN. Students analyze this data and draw conclusions at their schools. They then compare their results with those found at other schools in Masterclass live video conferences hosted by CERN over the internet. In March 2004, six students at Ward Melville High School on Long Island were sponsored by QuarkNet and Brookhaven National Laboratory to become the first U.S. team to participate in the EPPOG Masterclass. The Ward Melville group was positive about the experience and their results tracked well with those of their colleagues in the video conference from high schools in Greece, Slovakia, and Poland.

  11. Presenting particle physics and quantum mechanics to the general public

    CERN Document Server

    Strauss, J

    2015-01-01

    The job of a physicist is to describe Nature. General features, hypotheses and theories help to describe physics phenomena at a more abstract, fundamental level, and are sometimes tacitly assigned some sort of real existence; doing so appears to be of little harm in most of classical physics. However, missing any tangible connection to everyday experience, one better always bears in mind the descriptive nature of any efforts to grasp the quantum. And elementary particles interact in the quantum world, of course. When communicating the world of elementary particles to the general public, the Bayesian approach of an ever ongoing updating of the depiction of reality turns out to be virtually indispensable. The human experience of providing a series of increasingly better descriptions generates plenty of personal pleasures, for researchers as well as for amateurs. A suggestive analogy for improving our understanding of the world, even the seemingly paradoxical quantum world, may be found in recent insight into ho...

  12. MAJOR DETECOTRS IN ELEMENTARY PARTICLE PHYSICS - May 1985 Suppl.

    Energy Technology Data Exchange (ETDEWEB)

    Gidal, G.; Armstrong, B.; Rittenberg, A.

    1985-05-01

    This report is the second edition of a loose-leaf compendium of the properties and performance characteristics of the major detectors of elementary particle physics. This introduces the second edition of the LBL-91 Supplement 'Major Detectors in Elementary Particle Physics.' For some detectors the update merely documents minor modifications or provides additional references. Others have undergone major rebuilding or have been augmented with new subsystems. The new LEP, SLC, TRISTAN, BEPC, and FNAL detectors have had their designs fixed and are now under construction. Some detectors have completed their programs since the last edition and so are omitted. The use of colored loose-leaf paper should allow users to maintain a historical record of each detector. We again thank those physicists working with each detector who took the time to summarize its properties and supply us with the appropriate drawings.

  13. Particle physics catalysis of thermal big bang nucleosynthesis.

    Science.gov (United States)

    Pospelov, Maxim

    2007-06-08

    We point out that the existence of metastable, tau>10(3) s, negatively charged electroweak-scale particles (X-) alters the predictions for lithium and other primordial elemental abundances for A>4 via the formation of bound states with nuclei during big bang nucleosynthesis. In particular, we show that the bound states of X- with helium, formed at temperatures of about T=10(8) K, lead to the catalytic enhancement of 6Li production, which is 8 orders of magnitude more efficient than the standard channel. In particle physics models where subsequent decay of X- does not lead to large nonthermal big bang nucleosynthesis effects, this directly translates to the level of sensitivity to the number density of long-lived X- particles (tau>10(5) s) relative to entropy of nX-/s less, approximately <3x10(-17), which is one of the most stringent probes of electroweak scale remnants known to date.

  14. Performance of a new generation RPCs for particle physics at colliders of the next generation

    CERN Document Server

    Paolozzi, L; The ATLAS collaboration

    2013-01-01

    The upgrade of present and future experiments in particle physics at high luminosity colliders will require a level one trigger of high selectivity and robustness in order to cope with the very heavy background levels. This selectivity requires detectors with very good space and time resolution operating at high rate. We present in this paper the latest developments of the RPC detectors concerning rate capability (up to 30kHz/cm2), space resolution (few hundred microns) and time resolution (few hundred pico s). We also show that this improvement required the development of a fast, low noise and large dynamics front end electronics and a better understanding of the detector physics.

  15. Current experiments in elementary-particle physics - March 1983

    Energy Technology Data Exchange (ETDEWEB)

    Wohl, C.G.; Armstrong, F.E.; Rittenberg, A.

    1983-03-01

    Microfiche are included which contain summaries of 479 experiments in elementary particle physics. Experiments are included at the following laboratories: Brookhaven (BNL); CERN; CESR; DESY; Fermilab (FNAL); Institute for Nuclear Studies (INS); KEK; LAMPF; Serpukhov (SERP); SIN; SLAC; and TRIUMF. Also, summaries of proton decay experiments are included. A list of experiments and titles is included; and a beam-target-momentum index and a spokesperson index are given. Properties of beams at the facilities are tabulated. (WHK)

  16. The use of minimal spanning trees in particle physics

    Science.gov (United States)

    Lovelace Rainbolt, J.; Schmitt, M.

    2017-02-01

    Minimal spanning trees (MSTs) have been used in cosmology and astronomy to distinguish distributions of points in a multi-dimensional space. They are essentially unknown in particle physics, however. We briefly define MSTs and illustrate their properties through a series of examples. We show how they might be applied to study a typical event sample from a collider experiment and conclude that MSTs may prove useful in distinguishing different classes of events.

  17. The Use of Minimal Spanning Trees in Particle Physics

    CERN Document Server

    Rainbolt, Jessica Lovelace

    2016-01-01

    Minimal spanning trees (MSTs) have been used in cosmology and astronomy to distinguish distributions of points in a multi-dimensional space. They are essentially unknown in particle physics, however. We briefly define MSTs and illustrate their properties through a series of examples. We show how they might be applied to study a typical event sample from a collider experiment and conclude that MSTs may prove useful in distinguishing different classes of events.

  18. Attitudes towards disability showed by future physical education teachers

    Directory of Open Access Journals (Sweden)

    Jorge Abellán Hernández

    2015-09-01

    Full Text Available The present paper aims to study the attitudes towards disability of future physical education teachers. For this purpose two questionnaires were administered and the results were compared by gender (male and female, the participants' experience in dealing with people with disabilities and the particants’ course level (third or fourth grade. The results show that students in the Minor in Physical Education have a very positive attitude towards disability. Men obtain a more positive attitude in RICE variable, also is observed the trend of the previous contact with people with disabilities positively affects attitudes towards disability. Finally higher values in CG variable will be obtained by students of fourth grade.

  19. Neutrino physics today, important issues and the future

    Energy Technology Data Exchange (ETDEWEB)

    Parke, Stephen J.; /Fermilab

    2010-10-01

    The status and the most important issues in neutrino physics will be summarized as well as how the current, pressing questions will be addressed by future experiments. Since the discovery of neutrino flavor transitions by the SuperKamiokande experiment in 1998, which demonstrates that neutrinos change and hence their clocks tick, i.e. they are not traveling at the speed of light and hence are not massless, the field of neutrino physics has made remarkable progress in untangling the nature of the neutrino. However, there are still many important questions to answer.

  20. What is a Particle in Classical Physics? A Wave?

    Science.gov (United States)

    Mickens, Ronald E.

    2005-11-01

    The concepts of ``particle" and ``wave" play important roles in quantum mechanics in that a given microscopic system can, under the proper circumstances, display properties of each.ootnotetextA Messiah, Quantum Mechanics, Vols. I and II (Wiley, 1961). However, these categories have their genesis in classical mechanicsootnotetextH. Goldstein, Classical Mechanics (Addison-Wesley, 1980, 2nd edition). and we must turn to this area to understand what they mean. In particular, it must be clearly understood that these concepts are idealistic representations of physical phenomena and, as a consequence, each may not correspond to any actual physical system. We discuss the definition of ``particle'' from the perspective of how it has been defined in standard textbooks and carry out a similar analysis for the notion of ``wave.'' We then define ``particle'' and ``wave'' within the context of classical mechanics by means of their respective equations of motion. The general (tentative) conclusion is that within the framework of classical mechanics the concepts of ``particle'' and ``wave'' systems may be unambiguously defined.

  1. Electrodynamic metaphors: communicating particle physics with Feynman diagrams

    Directory of Open Access Journals (Sweden)

    Pietroni Massimo

    2002-03-01

    Full Text Available The aim of this project is to communicate the basic laws of particle physics with Feynman diagrams - visual tools which represent elementary particle processes. They were originally developed as a code to be used by physicists and are still used today for calculations and elaborations of theoretical nature. The technical and mathematical rules of Feynman diagrams are obviously the exclusive concern of physicists, but on a pictorial level they can help to popularize many concepts, ranging from matter and the antimatter; the creation, destruction and transformation of particles; the role of ‘virtual’ particles in interactions; the conservation laws, symmetries, etc. Unlike the metaphors often used to describe the microcosm, these graphic representations provide an unequivocal translation of the physical content of the underlying quantum theory. As such they are perfect metaphors, not misleading constructions. A brief introduction on Feynman diagrams will be followed by the practical realization of this project, which will be carried out with the help of an experiment based on three-dimensional manipulable objects. The Feynman rules are expressed in terms of mechanical constraints on the possible conjuctions among the various elements of the experiment. The final part of the project will present the results of this experiment, which has been conducted among high-school students.

  2. High Intensity Particle Physics at PW-class laser facilities

    Science.gov (United States)

    Bulanov, Stepan; Schroeder, Carl; Esarey, Eric; Esirkepov, Timur; Kando, Masaki; Rosanov, Nikolay; Korn, Georg; Bulanov, Sergey V.; Leemans, Wim P.

    2015-11-01

    The processes typical for high intensity particle physics, i.e., the interactions of charged particles with strong electromagnetic fields, have attracted considerable interest recently. Some of these processes, previously believed to be of theoretical interest only, are now becoming experimentally accessible. High intensity electromagnetic (EM) fields significantly modify the interactions of particles and EM fields, giving rise to the phenomena that are not encountered either in classical or perturbative quantum theory of these interactions. One of such phenomena is the radiation reaction, which radically influences the electron motion in an electromagnetic standing wave formed by two super-intense counter-propagating laser pulses. Depending on the laser intensity and wavelength, either classical or quantum mode of radiation reaction prevail, or both are strong. When radiation reaction dominates, electron motion evolves to limit cycles and strange attractors. This creates a new framework for high energy physics experiments on an interaction of energetic charged particle beams and colliding super-intense laser pulses. Work supported by U.S. DOE under Contract No. DE-AC02-05CH11231.

  3. Theoretical and Experimental Studies of Elementary Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Evans, Harold G [Indiana University; Kostelecky, V Alan [Indiana University; Musser, James A [Indiana University

    2013-07-29

    The elementary particle physics research program at Indiana University spans a broad range of the most interesting topics in this fundamental field, including important contributions to each of the frontiers identified in the recent report of HEPAP's Particle Physics Prioritization Panel: the Energy Frontier, the Intensity Frontier, and the Cosmic Frontier. Experimentally, we contribute to knowledge at the Energy Frontier through our work on the D0 and ATLAS collaborations. We work at the Intensity Frontier on the MINOS and NOvA experiments and participate in R&D for LBNE. We are also very active on the theoretical side of each of these areas with internationally recognized efforts in phenomenology both in and beyond the Standard Model and in lattice QCD. Finally, although not part of this grant, members of the Indiana University particle physics group have strong involvement in several astrophysics projects at the Cosmic Frontier. Our research efforts are divided into three task areas. The Task A group works on D0 and ATLAS; Task B is our theory group; and Task C contains our MINOS, NOvA, and LBNE (LArTPC) research. Each task includes contributions from faculty, senior scientists, postdocs, graduate and undergraduate students, engineers, technicians, and administrative personnel. This work was supported by DOE Grant DE-FG02-91ER40661. In the following, we describe progress made in the research of each task during the final period of the grant, from November 1, 2009 to April 30, 2013.

  4. Structural elements in particle physics and statistical mechanics

    Energy Technology Data Exchange (ETDEWEB)

    Honerkamp, J.; Pohlmeyer, K.; Romer, H.

    1983-01-01

    The NATO Advanced Summer Institute on Theoretical Physics 1981 had as its main objective a thorough comparison of structures and methods of two different branches of Theoretical Physics, namely Elementary Particle Physics and Statistical Mechanics, and the idea was to exhibit the structural similarities, to trace them until their origins, to compare solution and approximation schemes and to report on those new results and methods in either of the two branches which are indicative of an intimate connection between them. Thus stimulation of a deeper understanding and development of new Methods could be hoped for in both fields. One group of contributions gives concise up-to-date information on basic topics in Statistical Mechanics and Phase Transitions, Dynamical Systems, Solvable Lattice Models and Lattice Gauge Theories. A second group is devoted to special topics which illustrate the interrelationship between Statistical Mechanics and Elementary Particle Physics, like topological quantum numbers on a lattice, model studies on the confinement problem, etc. Supplementary information on experimental implications and on neighbouring fields is provided in a third group.

  5. Current status and future trends of medical physics in Mexico

    Science.gov (United States)

    Azorin Nieto, J.

    2015-01-01

    Medical Physics is an area that applies the principles of physics to medicine, particularly in the prevention, diagnosis and treatment of diseases using ionizing and nonionizing radiation. The main attractive of medical physics is that it has a direct impact on the quality and safety of medical care in humans; this social component with direct implications for the population is of high value for Mexico. This paper describes the concepts of medical physics, trends and the current status of this discipline as a profession, which is directly related to the efforts of clinical research. It is also described what is, in my opinion, the future of medical physics in Mexico, emphasizing the fact that this field requires a substantial boost from universities and hospitals to recruit highly qualified young medical physicists and the support from government agencies such as Secretaria de Salud, Instituto Mexicano del Seguro Social and Instituto de Seguridad y Servicios Sociales para los Trabajadores del Estado through clinical research projects that allow the necessary evolution of medical physics into the hospital setting.

  6. Heavy-ion physics studies for the Future Circular Collider

    CERN Document Server

    Armesto, Nestor; d'Enterria, David; Masciocchi, Silvia; Roland, Christof; Salgado, Carlos; van Leeuwen, Marco; Wiedemann, Urs

    2014-01-01

    The Future Circular Collider (FCC) design study is aimed at assessing the physics potential and the technical feasibility of a new collider with centre-of-mass energies, in the hadron-hadron collision mode including proton and nucleus beams, more than seven-times larger than the nominal LHC energies. An electron-positron collider in the same tunnel is also considered as an intermediate step, which would provide the electron-hadron option in the long term. First ideas on the physics opportunities with heavy ions at the FCC are presented, covering the physics of Quark-Gluon Plasma, gluon saturation, photon-induced collisions, as well as connections with ultra-high-energy cosmic rays.

  7. Physics Projects for a Future CERN-LNGS Neutrino Programme

    CERN Document Server

    Picchi, P

    1999-01-01

    We present an overview of the future projects concerning the neutrino oscillation physics in Europe. Recently a joint CERN-LNGS scientific committee has reviewed several proposals both for the study of atmospheric neutrinos and for long (LBL) and short baseline (SBL) neutrino oscillation experiments. The committee has indicated the priority that the European high energy physics community should follows in the field of neutrino physics, namely a new massive, atmospheric neutrino detector and a nu_tau appearance campaign exploiting the new CERN-LNGS Neutrino Facility (NGS), freshly approved by CERN and INFN. The sensitivity and the discovery potential of the whole experimental program in the Super-Kamiokande allowed region are discussed.

  8. Safe physical human robot interaction- past, present and future

    Energy Technology Data Exchange (ETDEWEB)

    Pervez, Aslam; Ryu, Jeha [Gwangju Institute of Science and Technology, Gwangju (Korea, Republic of)

    2008-03-15

    When a robot physically interacts with a human user, the requirements should be drastically changed. The most important requirement is the safety of the human user in the sense that robot should not harm the human in any situation. During the last few years, research has been focused on various aspects of safe physical human robot interaction. This paper provides a review of the work on safe physical interaction of robotic systems sharing their workspace with human users (especially elderly people). Three distinct areas of research are identified: interaction safety assessment, interaction safety through design, and interaction safety through planning and control. The paper then highlights the current challenges and available technologies and points out future research directions for realization of a safe and dependable robotic system for human users

  9. Resolution of a conflict between Laser and Elementary Particle Physics

    CERN Document Server

    Leader, Elliot

    2015-01-01

    The claim some years ago, contrary to all textbooks, that the angular momentum of a photon (and gluon) can be split in a gauge-invariant way into an orbital and spin term, sparked a major controversy in the Particle Physics community. A further cause of upset was the realization that the gluon polarization in a nucleon, a supposedly physically meaningful quantity, corresponds only to the gauge-variant gluon spin derived from Noether's theorem, evaluated in a particular gauge. On the contrary, Laser Physicists have, for decades, been happily measuring physical quantities which correspond to orbital and spin angular momentum evaluated in a particular gauge. This paper reconciles the two points of view.

  10. Recipients of 2013 EPS High Energy & Particle Physics Prize

    CERN Multimedia

    ATLAS, Experiment

    2014-01-01

    (From left) Joe Incandela, Peter Higgs, Francois Englert, Tejinder Virdee, Dave Charlton, and Peter Jenni. Higgs and Englert gave the prizes to the recipients of the 2013 European Physical Society's High Energy and Particle Physics Prize, for an outstanding contribution to high energy physics. "For the discovery of a Higgs boson, as predicted by the Brout-Englert-Higgs mechanism," the prize was awarded to the ATLAS and CMS collaborations. Spokesperson for CMS, Incandela, and Spokesperson for ATLAS, Charlton, accepted the awards on their collaborations' behalf. "For their pioneering and outstanding leadership roles in the making of the ATLAS and CMS experiments," the prize was awarded to Jenni, Virdee, and Michel Della Negra (not present). Image: ATLAS

  11. Physics of the Blues: Music, Fourier and Wave - Particle Duality

    Energy Technology Data Exchange (ETDEWEB)

    Gibson, J. Murray (ANL)

    2003-10-15

    Art and science are intimately connected. There is probably no art that reveals this more than music. Music can be used as a tool to teach physics and engineering to non-scientists, illustrating such diverse concepts as Fourier analysis and quantum mechanics. This colloquium is aimed in reverse, to explain some interesting aspects of music to physicists. Topics include: What determines the frequency of notes on a musical scale? What is harmony and why would Fourier care? Where did the blues come from? (We' re talking the 'physics of the blues', and not 'the blues of physics' - that's another colloquium). Is there a musical particle? The presentation will be accompanied by live keyboard demonstrations. The presenter will attempt to draw tenuous connections between the subject of his talk and his day job as Director of the Advanced Photon Source at Argonne National Laboratory.

  12. The Current Status and Future Directions of Heavy Charged Particle Therapy in Medicine

    Science.gov (United States)

    Levy, Richard P.; Blakely, Eleanor A.; Chu, William T.; Coutrakon, George B.; Hug, Eugen B.; Kraft, Gerhard; Tsujii, Hirohiko

    2009-03-01

    will require: (1) sophisticated target delineation that integrates CT, MRI and PET imaging; (2) reliable RBE modeling algorithms; (3) efficient beam-scanning technology that compensates for organ movements; (4) online beam control proximal to and within the patient; and (5) better understanding of dose-fractionation parameters. The current status and the anticipated future directions of the role of particle therapy in medicine is a complex subject that involves a very intimate interplay of radiobiology, accelerator physics and radiation oncology. The intention of this relatively brief manuscript is to describe the underlying principles, present the historical developments, highlight the clinical results, focus on the technical advances, and suggest likely future directions. We have also attempted to present a balanced, consensus view of the past achievements and current strategies in particle therapy, in a manner of interest both to long-term experts and to educated newcomers to this field.

  13. Establishing a consortium for Open Access (OA) publishing in particle physics

    CERN Document Server

    Dallman, David Peter; Vigen, Jens; Voss, Rüdiger; Yeomans, Joanne

    2006-01-01

    A meeting has been called at CERN on November 3rd 2006 to work towards establishing a consortium of major particle physics funding agencies, aimed at guiding a transition of the current subscription model for journals to a more stable, more competitive and more affordable future for the dissemination of quality-assured scientific information adapted to the era of electronic publishing. The meeting will gather representatives of major European particle physics agencies and library consortia. In order to be successful it is vital that the stakeholders, representing as they do the funding bodies and academia, see themselves responsible for the financing and organization of the dissemination of scientific information and its quality assurance. In particular the transition to a wider availability of research results cannot afford to be held back due to a lack of concerted effort among the agencies financing the research.

  14. 22nd SLAC Summer Institute on Particle Physics: Particle physics, astrophysics and cosmology

    Science.gov (United States)

    Chan, J.; Deporcel, L.

    The seven-day school portion of the Institute revolved around the question of dark matter: where is it and what is it? Reviews were given of microlensing searches for baryonic dark matter, of dark matter candidates in the form of neutrinos and exotic particles, and of low-noise detection techniques used to search for the latter. The history of the universe, from the Big Bang to the role of dark matter in the formation of large-scale structure, was also covered. Other lecture series described the astrophysics that might be done with x-ray timing experiments and through the detection of gravitational radiation. As in past years, the lectures each morning were followed by stimulating afternoon discussion sessions, in which students could pursue with the lecturers the topics that most interested them. The Institute concluded with a three-day topical conference covering recent developments in theory and experiment. Highlights from the astrophysical and cosmological arenas included observations of anisotropy in the cosmic microwave background, and of the mysterious gamma-ray bursters. From terrestrial accelerators came tantalizing hints of the top quark and marked improvements in precision electroweak measurements, among many other results. Selected papers are indexed separately for inclusion in the Energy Science and Technology Database.

  15. Effects of the quantum vacuum in particle physics and cosmology

    Energy Technology Data Exchange (ETDEWEB)

    Smirnov, Juri

    2014-11-26

    In this work we investigate numerous effects of virtual particles on processes relevant for particle physics and cosmology. A central question is, whether radiative spontaneous electroweak symmetry breaking can be combined with neutrino mass generation, we find that the answer is affirmative. We discuss the implication of the RSSB on the neutrino mass phenomenology and low-energy observables. Furthermore, by comparing the models to experimental data we find that several anomalies in the present observations favour particular scenarios over the pure Standard Model hypothesis. We are able to show, that the presence of sterile neutrinos with active-sterile mixing of order 10{sup -3} and masses in the TeV range leads to a reduced invisible decay width of the Z-boson and can bring the NuTeV observations in agreement with theoretical expectations. The models we discuss naturally incorporate long lived particles which can serve as dark matter candidates and we investigate this phenomenologically. We find that the combination of the requirements leads to interesting constraints on the model and parameter space. We find that loop induced electromagnetic moments for the neutral dark matter candidates, lead to interactions with charged particles. We use this and derive new constraints from existing XENON100 and LUX data. In addition we study how vacuum effects can backreact on a given geometry in electromagnetism and semiclassical gravity. We find that in the case of gravity the conformal set up plays a special role and indicate several ideas for further investigation of this topic.

  16. A physics-motivated Centroidal Voronoi Particle domain decomposition method

    Science.gov (United States)

    Fu, Lin; Hu, Xiangyu Y.; Adams, Nikolaus A.

    2017-04-01

    In this paper, we propose a novel domain decomposition method for large-scale simulations in continuum mechanics by merging the concepts of Centroidal Voronoi Tessellation (CVT) and Voronoi Particle dynamics (VP). The CVT is introduced to achieve a high-level compactness of the partitioning subdomains by the Lloyd algorithm which monotonically decreases the CVT energy. The number of computational elements between neighboring partitioning subdomains, which scales the communication effort for parallel simulations, is optimized implicitly as the generated partitioning subdomains are convex and simply connected with small aspect-ratios. Moreover, Voronoi Particle dynamics employing physical analogy with a tailored equation of state is developed, which relaxes the particle system towards the target partition with good load balance. Since the equilibrium is computed by an iterative approach, the partitioning subdomains exhibit locality and the incremental property. Numerical experiments reveal that the proposed Centroidal Voronoi Particle (CVP) based algorithm produces high-quality partitioning with high efficiency, independently of computational-element types. Thus it can be used for a wide range of applications in computational science and engineering.

  17. Speculative Physics: the Ontology of Theory and Experiment in High Energy Particle Physics and Science Fiction

    CERN Document Server

    Lee, Clarissa Ai Ling

    2014-01-01

    The dissertation brings together approaches across the fields of physics, critical theory, literary studies, philosophy of physics, sociology of science, and history of science to synthesize a hybrid approach for instigating more rigorous and intense cross-disciplinary interrogations between the sciences and the humanities. There are two levels of conversations going on in the dissertation; at the first level, the discussion is centered on a critical historiography and philosophical implications of the discovery Higgs boson in relation to its position at the intersection of old (current) and the potential for new possibilities in quantum physics; I then position my findings on the Higgs boson in connection to the double-slit experiment that represents foundational inquiries into quantum physics, to demonstrate the bridge between fundamental physics and high energy particle physics. The conceptualization of the variants of the double-slit experiment informs the aforementioned critical comparisons. At the secon...

  18. A system for designing and simulating particle physics experiments

    Science.gov (United States)

    Żelazny, Roman; Strzałkowski, Piotr

    1987-01-01

    In view of the rapid development of experimental facilities and their costs, the systematic design and preparation of particle physics experiments have become crucial. A software system is proposed as an aid for the experimental designer, mainly for experimental geometry analysis and experimental simulation. The following model is adopted: the description of an experiment is formulated in a language (here called XL) and put by its processor in a data base. The language is based on the entity-relationship-attribute approach. The information contained in the data base can be reported and analysed by an analyser (called XA) and modifications can be made at any time. In particular, the Monte Carlo methods can be used in experiment simulation for both physical phenomena in experimental set-up and detection analysis. The general idea of the system is based on the design concept of ISDOS project information systems. The characteristics of the simulation module are similar to those of the CERN Geant system, but some extensions are proposed. The system could be treated as a component of a greater, integrated software environment for the design of particle physics experiments, their monitoring and data processing.

  19. Major detectors in elementary-particle physics. [Portfolio

    Energy Technology Data Exchange (ETDEWEB)

    Gidal, G.; Armstrong, B.; Rittenberg, A.

    1983-03-01

    With the 1983 issue of LBL-91 we introduce a supplement - a folio of descriptions of the world's major elementary particle physics detectors. Modern high energy physics usually involves the use of massive, costly, carefully engineered, large solid angle detectors. These detectors require a long lead time for construction, are often integrated with an accelerator, accumulate data over many years, and are in reality a combination of numerous subsystems. As was the case with bubble chambers, many experiments are performed with the same data, or with data taken after relatively minor changes or additions to the detector configuration. These experiments are often reported in journals whose space limitations make repeated full descriptions of the detector impossible. The detailed properties and performance of the detector are usually described in a fragmented series of papers in more specialized, technologically oriented journals. New additions are often not well documented. Several detectors often make similar measurements and physicists want to make quick comparisons of their respective capabilities. Designers of new large detectors and even of smaller experiments need to know what already exists and what performance has been achieved. To aid the physics community, the Particle Data Group has produced this brief folio of the world's major large detectors. This first edition has some notable omissions: in particular, the bubble chambers and any associated spectrometers, and the still somewhat tentative LEP, SLC, and TRISTAN detectors.

  20. Major detectors in elementary-particle physics. [Portfolio

    Energy Technology Data Exchange (ETDEWEB)

    Gidal, G.; Armstrong, B.; Rittenberg, A.

    1983-03-01

    With the 1983 issue of LBL-91 we introduce a supplement - a folio of descriptions of the world's major elementary particle physics detectors. Modern high energy physics usually involves the use of massive, costly, carefully engineered, large solid angle detectors. These detectors require a long lead time for construction, are often integrated with an accelerator, accumulate data over many years, and are in reality a combination of numerous subsystems. As was the case with bubble chambers, many experiments are performed with the same data, or with data taken after relatively minor changes or additions to the detector configuration. These experiments are often reported in journals whose space limitations make repeated full descriptions of the detector impossible. The detailed properties and performance of the detector are usually described in a fragmented series of papers in more specialized, technologically oriented journals. New additions are often not well documented. Several detectors often make similar measurements and physicists want to make quick comparisons of their respective capabilities. Designers of new large detectors and even of smaller experiments need to know what already exists and what performance has been achieved. To aid the physics community, the Particle Data Group has produced this brief folio of the world's major large detectors. This first edition has some notable omissions: in particular, the bubble chambers and any associated spectrometers, and the still somewhat tentative LEP, SLC, and TRISTAN detectors.

  1. Research in Neutrino Physics and Particle Astrophysics: Final Technical Report

    Energy Technology Data Exchange (ETDEWEB)

    Kearns, Edward [Boston Univ., MA (United States)

    2016-06-30

    The Boston University Neutrino Physics and Particle Astrophysics Group investigates the fundamental laws of particle physics using natural and man-made neutrinos and rare processes such as proton decay. The primary instrument for this research is the massive Super-Kamiokande (SK) water Cherenkov detector, operating since 1996 at the Kamioka Neutrino Observatory, one kilometer underground in a mine in Japan. We study atmospheric neutrinos from cosmic rays, which were first used to discover that neutrinos have mass, as recognized by the 2015 Nobel Prize in Physics. Our latest measurements with atmospheric neutrinos are giving valuable information, complementary to longbaseline experiments, on the ordering of massive neutrino states and as to whether neutrinos violate CP symmetry. We have studied a variety of proton decay modes, including the most frequently predicted modes such as p → e+π0 and p → ν K+, as well as more exotic baryon number violating processes such as dinucleon decay and neutronantineutron oscillation. We search for neutrinos from dark matter annihilation or decay in the universe. Our group has made significant contributions to detector operation, particularly in the area of electronics. Most recently, we have contributed to planning for an upgrade to the SK detector by the addition of gadolinium to the water, which will enable efficient neutron capture detection.

  2. Gauge bosons and heavy quarks: Proceedings of Summer Institute on Particle Physics

    Science.gov (United States)

    Hawthorne, J. F.

    1991-01-01

    This report contains papers on the following topics: Z decays and tests of the standard model; future possibilities for LEP; studies of the interactions of electroweak gauge bosons; top quark topics; the next linear collider; electroweak processes in hadron colliders; theoretical topics in B-physics; experimental aspects of B-physics; B-factory storage ring design; rare kaon decays; CP violation in K(sup 0) decays at CERN; recent K(sup 0) decay results from Fermilab E-731; results from LEP on heavy quark physics; review of recent results on heavy flavor production; weak matrix elements and the determination of the weak mixing angles; recent results from CLEO I and a glance at CLEO II data; recent results from ARGUS; neutrino lepton physics with the CHARM 2 detector; recent results from the three TRISTAN experiments; baryon number violation at high energy in the standard model: fact or fiction? New particle searches at LEP; review of QCD at LEP; electroweak interactions at LEP; recent results on W physics from the UA2 experiment at the CERN rho(bar rho) collider; B physics at CDF; and review of particle astrophysics.

  3. Gauge bosons and heavy quarks: Proceedings of Summer Institute on Particle Physics

    Energy Technology Data Exchange (ETDEWEB)

    Hawthorne, J.F. (ed.)

    1991-01-01

    This report contains papers on the following topics: Z decays and tests of the standard model; future possibilities for LEP; studies of the interactions of electroweak gauge bosons; top quark topics; the next linear collider; electroweak processes in hadron colliders; theoretical topics in B-physics; experimental aspects of B-physics; B-factory storage ring design; rare kaon decays; CP violation in K{sup 0} decays at CERN; recent K{sup 0} decay results from Fermilab E-731; results from LEP on heavy quark physics; review of recent results on heavy flavor production; weak matrix elements and the determination of the weak mixing angles; recent results from CLEO I and a glance at CLEO II data; recent results from ARGUS; neutrino lepton physics with the CHARM 2 detector; recent results from the three TRISTAN experiments; baryon number violation at high energy in the standard model: fact or fiction New particle searches at LEP; review of QCD at LEP; electroweak interactions at LEP; recent results on W physics from the UA2 experiment at the CERN {rho}{bar {rho}} collider; B physics at CDF; and review of particle astrophysics.

  4. SU-8 as a Material for Microfabricated Particle Physics Detectors

    CERN Document Server

    Maoddi, Pietro; Jiguet, Sebastien; Renaud, Philippe

    2014-01-01

    Several recent detector te chnologies developed for particle physics applications are based on microfabricated structures. Dete ctors built with this approach generally exhibit the overall best performance in te rms of spatial and time resolution. Many properties of the SU-8 photoepoxy make it suitable for the manufacturing of microstructured particle detectors. This arti cle aims to review some emerging detector technologies making use of SU-8 microstructu ring, namely micropatte rn gaseous detectors and microfluidic scintillation detectors. Th e general working principle and main process steps for the fabrication of each device are reported, with a focus on the advantages brought to the device functionality by the us e of SU-8. A novel process based on multiple bonding steps for the fabrication of thin multila yer microfluidic scin tillation detectors developed by the authors is presented. Finally, a brief overview of the applications for the discussed devices is given.

  5. Highest energy particle physics with the Pierre Auger Observatory

    CERN Document Server

    ,

    2014-01-01

    Astroparticles offer a new path for research in the field of particle physics, allowing investigations at energies above those accesible with accelerators. Ultra-high energy cosmic rays can be studied via the observation of the showers they generate in the atmosphere. The Pierre Auger Observatory is a hybrid detector for ultra-high energy cosmic rays, combining two complementary measurement techniques used by previous experiments, to get the best possible measurements of these air showers. Shower observations enable one to not only estimate the energy, direction and most probable mass of the primary cosmic particles but also to obtain some information about the properties of their hadronic interactions. Results that are most relevant in the context of determining hadronic interaction characteristics at ultra-high energies will be presented.

  6. Physics of leptoquarks in precision experiments and at particle colliders

    CERN Document Server

    Doršner, I; Greljo, A; Kamenik, J F; Košnik, N

    2016-01-01

    We present a comprehensive review of physics effects generated by leptoquarks (LQs), i.e., hypothetical particles that can turn quarks into leptons and vice versa, of either scalar or vector nature. These considerations include discussion of possible completions of the Standard Model that contain LQ fields. The main focus of the review is on those LQ scenarios that are not problematic with regard to proton stability. We accordingly concentrate on the phenomenology of light leptoquarks that is relevant for precision experiments and particle colliders. Important constraints on LQ interactions with matter are derived from precision low energy observables such as electric dipole moments, (g-2) of charged leptons, atomic parity violation, neutral meson mixing, Kaon, B, and D meson decays, etc. We provide a general analysis of indirect constraints on LQ Yukawa interactions to make statements that are as model independent as possible. We address complementary constraints that originate from electroweak precision mea...

  7. Eleven years that changed the face of particle physics

    CERN Multimedia

    2000-01-01

    Director General Luciano Maiani opens the proceedings at the LEP Celebration. Members of government from around the world gathered at CERN on Monday 9 October to celebrate the achievements of the Large Electron Positron collider (LEP), the Laboratory’s flagship particle accelerator. Over the eleven years of its operational lifetime, LEP has not only added greatly to mankind’s pool of knowledge about the Universe, but has also changed the way that particle physics research is done, and proved to be a valuable training ground for young professionals in many walks of life. The celebration took place in building 180 and the audience of politicians and scientists listened to speeches from:   Prof. Luciano Maiani CERN’s Director-General Prof. Martinus Veltman Nobel Prize Laureat 1999 M. Adolf Ogi President of the Swiss Confederation Switzerland M. Roger-Gérard Schwartzenberg Minister of Research  France Mme Edelgard Bulmahn Minister of Education and R...

  8. Elementary particle physics at the University of Florida. Annual report

    Energy Technology Data Exchange (ETDEWEB)

    Field, R.D.; Ramond, P.M.; Sikivie, P. [and others

    1995-12-01

    This is the annual progress report of the University of Florida`s elementary particle physics group. The theoretical high energy physics group`s research covers a broad range of topics, including both theory and phenomenology. Present work of the experimental high energy physics group is directed toward the CLEO detector, with some effort going to B physics at Fermilab. The Axion Search project is participating in the operation of a large-scale axion detector at Lawrence Livermore National Laboratory, with the University of Florida taking responsibility for this experiment`s high-resolution spectrometer`s assembly, programming, and installation, and planning to take shifts during operation of the detector in FY96. The report also includes a continuation of the University`s three-year proposal to the United States Department of Energy to upgrade the University`s high-energy physics computing equipment and to continue student support, system manager/programmer support, and maintenance. Report includes lists of presentations and publications by members of the group.

  9. The Future of Superconducting Technology for Particle Accelerators

    CERN Document Server

    Yamamoto, Akira

    2015-01-01

    Introduction: - Colliders constructed and operated - Future High Energy Colliders under Study - Superconducting Phases and Applications - Possible Choices among SC Materials Superconducting Magnets and the Future - Advances in SC Magnets for Accelerators - Nb3Sn for realizing Higher Field - NbTi to Nb3Sn for realizing High Field (> 10 T) - HL-LHC as a critical milestone for the Future of Acc. Magnet Technology - Nb3Sn Superconducting Magnets (> 11 T)and MgB2 SC Links for HL-LHC - HL-LHC, 11T Dipole Magnet - Nb3Sn Quadrupole (MQXF) at IR - Future Circular Collider Study - Conductor development (1998-2008) - Nb3Sn conductor program - 16 T Dipole Options and R&D sharing - Design Study and Develoment for SppC in China - High-Field Superconductor and Magnets - HTS Block Coil R&D for 20 T - Canted Cosine Theta (CCT) Coil suitable with Brittle HTS Conductor - A topic at KEK: S-KEKB IRQs just integrated w/ BELLE-II ! Superconducting RF and the Future - Superconducting Phases and Applications - Poss...

  10. UCLA Particle and Nuclear Physics Research Group, 1993 progress report

    Energy Technology Data Exchange (ETDEWEB)

    Nefkens, B.M.K.; Clajus, M.; Price, J.W.; Tippens, W.B.; White, D.B.

    1993-09-01

    The research programs of the UCLA Particle and Nuclear Physics Research Group, the research objectives, results of experiments, the continuing activities and new initiatives are presented. The primary goal of the research is to test the symmetries and invariances of particle/nuclear physics with special emphasis on investigating charge symmetry, isospin invariance, charge conjugation, and CP. Another important part of our work is baryon spectroscopy, which is the determination of the properties (mass, width, decay modes, etc.) of particles and resonances. We also measure some basic properties of light nuclei, for example the hadronic radii of {sup 3}H and {sup 3}He. Special attention is given to the eta meson, its production using photons, electrons, {pi}{sup {plus_minus}}, and protons, and its rare and not-so-rare decays. In Section 1, the physics motivation of our research is outlined. Section 2 provides a summary of the research projects. The status of each program is given in Section 3. We discuss the various experimental techniques used, the results obtained, and we outline the plans for the continuing and the new research. Details are presented of new research that is made possible by the use of the Crystal Ball Detector, a highly segmented NaI calorimeter and spectrometer with nearly 4{pi} acceptance (it was built and used at SLAC and is to be moved to BNL). The appendix contains an update of the bibliography, conference participation, and group memos; it also indicates our share in the organization of conferences, and gives a listing of the colloquia and seminars presented by us.

  11. 12th DESY Workshop on Elementary Particle Physics: Loops and Legs in Quantum Field Theory

    CERN Document Server

    LL2014

    2014-01-01

    The bi-annual international conference “Loops and Legs in Quantum Field Theory” has been held at Weimar, Germany, from April 27 to May 02, 2014. It has been the 12th conference of this series, started in 1992. The main focus of the conference are precision calculations of multi- loop and multi-leg processes in elementary particle physics for processes at present and future high-energy facilities within and beyond the Standard Model. At present many physics questions studied deal with processes at the LHC and future facilities like the ILC. A growing number of contributions deals with important developments in the field of computational technologies and algorithmic methods, including large-scale computer algebra, efficient methods to compute large numbers of Feynman diagrams, analytic summation and integration methods of various kinds, new related function spaces, precise numerical methods and Monte Carlo simulations. The present conference has been attended by more than 110 participants from all over the ...

  12. Statistical Methods for Particle Physics (4/4)

    CERN Document Server

    CERN. Geneva

    2012-01-01

    The series of four lectures will introduce some of the important statistical methods used in Particle Physics, and should be particularly relevant to those involved in the analysis of LHC data. The lectures will include an introduction to statistical tests, parameter estimation, and the application of these tools to searches for new phenomena. Both frequentist and Bayesian methods will be described, with particular emphasis on treatment of systematic uncertainties. The lectures will also cover unfolding, that is, estimation of a distribution in binned form where the variable in question is subject to measurement errors.

  13. Statistical Methods for Particle Physics (2/4)

    CERN Document Server

    CERN. Geneva

    2012-01-01

    The series of four lectures will introduce some of the important statistical methods used in Particle Physics, and should be particularly relevant to those involved in the analysis of LHC data. The lectures will include an introduction to statistical tests, parameter estimation, and the application of these tools to searches for new phenomena. Both frequentist and Bayesian methods will be described, with particular emphasis on treatment of systematic uncertainties. The lectures will also cover unfolding, that is, estimation of a distribution in binned form where the variable in question is subject to measurement errors.

  14. Statistical Methods for Particle Physics (1/4)

    CERN Document Server

    CERN. Geneva

    2012-01-01

    The series of four lectures will introduce some of the important statistical methods used in Particle Physics, and should be particularly relevant to those involved in the analysis of LHC data. The lectures will include an introduction to statistical tests, parameter estimation, and the application of these tools to searches for new phenomena. Both frequentist and Bayesian methods will be described, with particular emphasis on treatment of systematic uncertainties. The lectures will also cover unfolding, that is, estimation of a distribution in binned form where the variable in question is subject to measurement errors.

  15. Statistical Methods for Particle Physics (3/4)

    CERN Document Server

    CERN. Geneva

    2012-01-01

    The series of four lectures will introduce some of the important statistical methods used in Particle Physics, and should be particularly relevant to those involved in the analysis of LHC data. The lectures will include an introduction to statistical tests, parameter estimation, and the application of these tools to searches for new phenomena. Both frequentist and Bayesian methods will be described, with particular emphasis on treatment of systematic uncertainties. The lectures will also cover unfolding, that is, estimation of a distribution in binned form where the variable in question is subject to measurement errors.

  16. A Brief Note on "Un-Particle" Physics

    Directory of Open Access Journals (Sweden)

    Goldfain E.

    2008-07-01

    Full Text Available The possibility of a hidden sector of particle physics that lies beyond the energy range of the Standard Model has been recently advocated by many authors. A bizarre implication of this conjecture is the emergence of a continuous spectrum of massless fields with non-integral scaling dimensions called “un-particles”. The purpose of this Letter is to show that the idea of “un-particles” was considered in at least two previous independent publications, prior to its first claimed disclosure.

  17. Strong field effects on physics processes at the Interaction Point of future linear colliders

    CERN Document Server

    Hartin, A; Porto, S

    2013-01-01

    Future lepton colliders will be precision machines whose physics program includes close study of the Higgs sector and searches for new physics via polarised beams. The luminosity requirements of such machines entail very intense lepton bunches at the interaction point with associated strong electromagnetic fields. These strong fields not only lead to obvious phenomena such as beamstrahlung, but also potentially affect every particle physics process via virtual exchange with the bunch fields. For precision studies, strong field effects have to be understood to the sub-percent level. Strong external field effects can be taken into account exactly via the Furry Picture or, in certain limits, via the Quasi-classical Operator method . Significant theoretical development is in progress and here we outline the current state of play.

  18. Physical sciences at Diamond: past achievements and future opportunities.

    Science.gov (United States)

    McMorrow, D F

    2015-03-06

    The start of user operation at the Diamond Light Source in January 2007 marks a major milestone for the physical sciences in the UK. The routine delivery to the UK community of ultra-bright X-ray beams from the third-generation source has provided us with capabilities that were available previously only at international sources, and indeed has created some that are unique. Here, a personal view is given of some of the achievements to date, and possible future opportunities outlined.

  19. Modern elementary particle physics explaining and extending the standard model

    CERN Document Server

    Kane, Gordon

    2017-01-01

    This book is written for students and scientists wanting to learn about the Standard Model of particle physics. Only an introductory course knowledge about quantum theory is needed. The text provides a pedagogical description of the theory, and incorporates the recent Higgs boson and top quark discoveries. With its clear and engaging style, this new edition retains its essential simplicity. Long and detailed calculations are replaced by simple approximate ones. It includes introductions to accelerators, colliders, and detectors, and several main experimental tests of the Standard Model are explained. Descriptions of some well-motivated extensions of the Standard Model prepare the reader for new developments. It emphasizes the concepts of gauge theories and Higgs physics, electroweak unification and symmetry breaking, and how force strengths vary with energy, providing a solid foundation for those working in the field, and for those who simply want to learn about the Standard Model.

  20. Resummation and renormalization in effective theories of particle physics

    CERN Document Server

    Jakovac, Antal

    2015-01-01

    Effective models of strong and electroweak interactions are extensively applied in particle physics phenomenology, and in many instances can compete with large-scale numerical simulations of Standard Model physics. These contexts include but are not limited to providing indications for phase transitions and the nature of elementary excitations of strong and electroweak matter. A precondition for obtaining high-precision predictions is the application of some advanced functional techniques to the effective models, where the sensitivity of the results to the accurate choice of the input parameters is under control and the insensitivity to the actual choice of ultraviolet regulators is ensured. The credibility of such attempts ultimately requires a clean renormalization procedure and an error estimation due to a necessary truncation in the resummation procedure. In this concise primer we discuss systematically and in sufficient technical depth the features of a number of approximate methods, as applied to vario...

  1. Nuclear and particle physics in the early universe

    Science.gov (United States)

    Schramm, D. N.

    1981-01-01

    Basic principles and implications of Big Bang cosmology are reviewed, noting the physical evidence of a previous universe temperature of 10,000 K and theoretical arguments such as grand unification decoupling indicating a primal temperature of 10 to the 15th eV. The Planck time of 10 to the -43rd sec after the Big Bang is set as the limit before which gravity was quantized and nothing is known. Gauge theories of elementary particle physics are reviewed for successful predictions of similarity in weak and electromagnetic interactions and quantum chromodynamic predictions for strong interactions. The large number of photons in the universe relative to the baryons is considered and the grand unified theories are cited as showing the existence of baryon nonconservation as an explanation. Further attention is given to quark-hadron phase transition, the decoupling for the weak interaction and relic neutrinos, and Big Bang nucleosynthesis.

  2. A problem in particle physics and its Bayesian analysis

    Science.gov (United States)

    Landon, Joshua

    An up and coming field in contemporary nuclear and particle physics is "Lattice Quantum Chromodynamics", henceforth Lattice QCD. Indeed the 2004 Nobel Prize in Physics went to the developers of equations that describe QCD. In this dissertation, following a layperson's introduction to the structure of matter, we outline the statistical aspects of a problem in Lattice QCD faced by particle physicists, and point out the difficulties encountered by them in trying to address the problem. The difficulties stem from the fact that one is required to estimate a large -- conceptually infinite -- number of parameters based on a finite number of non-linear equations, each of which is a sum of exponential functions. We then present a plausible approach for solving the problem. Our approach is Bayesian and is driven by a computationally intensive Markov Chain Monte Carlo based solution. However, in order to invoke our approach we first look at the underlying anatomy of the problem and synthesize its essentials. These essentials reveal a pattern that can be harnessed via some assumptions, and this in turn enables us to outline a pathway towards a solution. We demonstrate the viability of our approach via simulated data, followed by its validation against real data provided to us by our physicist colleagues. Our approach yields results that in the past were not obtainable via alternate approaches. The contribution of this dissertation is two-fold. The first is a use of computationally intensive statistical technology to produce results in physics that could not be obtained using physics based techniques. Since the statistical architecture of the problem considered here can arise in other contexts as well, the second contribution of this dissertation is to indicate a plausible approach for addressing a generic class of problems wherein the number of parameters to be estimated exceeds the number of constraints, each constraint being a non-linear equation that is the sum of

  3. The standard model of particle physics. Neutrino oscillations

    Energy Technology Data Exchange (ETDEWEB)

    Giacomelli, Giorgio, E-mail: giacomelli@bo.infn.i [Physics Department, University of Bologna and INFN Sez. of Bologna, Viale Berti Pichat 6/2, Bologna (Italy)

    2009-10-15

    The Standard Model (SM) of Particle Physics was tested to great precision by experiments at the highest energy colliders (LEP, Hera, Tevatron, Slac). The only missing particle is the Higgs boson, which will be the first particle to be searched for at the new Large Hadron Collider (LHC) at CERN. The SM anticipated that there are 3 types of left handed neutrinos. Experiments on atmospheric and solar neutrinos (made in Japan, Italy, Canada, Russia and the US) have shown the existence of neutrino oscillations, which imply that neutrinos have very small mass differences and violate the conservation of individual leptonic numbers. Neutrino oscillations were verified in long baseline neutrino experiments (in Japan and in the USA); and cosmology has given reasonably precise indications on the sum of the neutrino masses. In this paper will be summarized some of the main properties of the SM and some of the main results obtained in the field and the experiments in preparation. Some of the main open questions will be briefly discussed.

  4. Particle physics: a valuable driver of innovation in medicine… and physics

    CERN Multimedia

    2012-01-01

    This year marks the 10th anniversary of the European Network for Light Ion Therapy (ENLIGHT), which is a good occasion a look back over the important contributions particle physics has made to medicine over the years. It’s hard to know exactly where to start, but since this year also marks the 20th anniversary of Georges Charpak’s Nobel Prize, that seems as good a place as any.   Charpak’s prize was a long time coming. It was awarded for “his invention and development of particle detectors, in particular the multiwire proportional chamber” in 1968. Over the following years, these devices transformed particle physics, allowing particle collisions to be recorded electronically instead of optically, and they led to a wide range of electronic particle detection techniques in use today. All this was duly noted by the Nobel committee, which also pointed out Charpak’s energy in applying the technology to medicine. Today, Charpak-like detec...

  5. Salivary Gland. Photon beam and particle radiotherapy: Present and future.

    Science.gov (United States)

    Orlandi, Ester; Iacovelli, Nicola Alessandro; Bonora, Maria; Cavallo, Anna; Fossati, Piero

    2016-09-01

    Salivary gland cancers (SGCs) are rare diseases and their treatment depends upon histology, stage and site of origin. Radical surgery is the mainstay of treatment but radiotherapy (RT) plays a key role in both the postoperative and the inoperable setting, as well as in recurrent disease. In the absence of prospective randomized trials, a wide retrospective literature suggests postoperative RT (PORT) in patients with high risk pathological features. SGCs, and adenoid cystic carcinoma (ACC) in particular, are known to be radio-resistant tumors and should therefore respond well to particle beam therapy. Recently, excellent outcome has been reported with radical carbon ion RT (CIRT) in particular for ACC. Both modern photon- and hadron-based treatments are effective and are characterized by a favourable toxicity profile. But it is not clear whether one modality is superior to the other for disease control, due to the differences in patients' selection, techniques, fractionation schedules and outcome measurements among clinical experiences. In this paper, we review the role of photon and particle RT for malignant SGCs, discussing the difference between modalities in terms of biological and technical characteristics. RT dose and target volumes for different histologies (ACC versus non-ACC) have also been taken into consideration.

  6. An Idea for Generating Diversity Conversations: Physics Jeopardy and the Future Faces of Physics Kit

    Science.gov (United States)

    Rand, Kendra; White, Gary

    2008-10-01

    Is there a way to engage typical physics undergraduates in a conversation about under-represented groups in physics that doesn't result in rolled-eyes or fingers-in-the-ears? The Society of Physics Students (SPS) has begun an experiment using a jeopardy-like game at physics meetings in an attempt to generate conversations about diversity. The physics jeopardy game is part of a "Future Faces of Physics" kit that includes a variety of materials that are of interest to those wanting to address under-represented audiences in physics, such as video clips exhibiting common physics words in sign language, tactile representations of the lunar surface for blind students, guidelines regarding lab procedures for the wheel-chair bound, and the book, Einstein on Race and Racism with a challenge letter directed at SPS chapters from the authors. While attempts to assess the impact of the game are modest, we report anecdotally some of the qualitative features seen in the discussions when the game is played. We also strive to indulge in a few physics jeopardy game moments to give a sense of how the game works. If you are hosting a meeting, large or small, and would like to receive this kit for use at your meeting, notify Kendra Rand, SPS Program Coordinator at krand@aip.org.

  7. [Participation in high energy physics]: Task C, Particle physics and cosmology. Progress report, January 1991--April 1992

    Energy Technology Data Exchange (ETDEWEB)

    Turner, M.S.

    1992-05-01

    Over the past year or so the research of our group has spanned many topics at the boundary of particle physics and cosmology. The major focus has been in the general areas of inflation, cosmological phase transitions, astrophysical constraints to particle physics theories, and dark matter/structure formation as it relates to particle physics. Narrative summaries of the research of the individual group members are given in this paper.

  8. Cost-effectiveness of particle therapy : Current evidence and future needs

    NARCIS (Netherlands)

    Pijls-Johannesma, Madelon; Pommier, Pascal; Lievens, Yolande

    2008-01-01

    Purpose: Questions are being raised regarding the cost of particle therapy (PT), and with them criticism that PT is too expensive to allow the expected gain in effectiveness. This paper aims to get more insight in the cost and cost-effectiveness of particle therapy and to discuss a future strategy t

  9. Laser induced x-ray `RADAR' particle physics model

    Science.gov (United States)

    Lockley, D.; Deas, R.; Moss, R.; Wilson, L. A.; Rusby, D.; Neely, D.

    2016-05-01

    The technique of high-power laser-induced plasma acceleration can be used to generate a variety of diverse effects including the emission of X-rays, electrons, neutrons, protons and radio-frequency radiation. A compact variable source of this nature could support a wide range of potential applications including single-sided through-barrier imaging, cargo and vehicle screening, infrastructure inspection, oncology and structural failure analysis. This paper presents a verified particle physics simulation which replicates recent results from experiments conducted at the Central Laser Facility at Rutherford Appleton Laboratory (RAL), Didcot, UK. The RAL experiment demonstrated the generation of backscattered X-rays from test objects via the bremsstrahlung of an incident electron beam, the electron beam itself being produced by Laser Wakefield Acceleration. A key initial objective of the computer simulation was to inform the experimental planning phase on the predicted magnitude of the backscattered X-rays likely from the test objects. This objective was achieved and the computer simulation was used to show the viability of the proposed concept (Laser-induced X-ray `RADAR'). At the more advanced stages of the experimental planning phase, the simulation was used to gain critical knowledge of where it would be technically feasible to locate key diagnostic equipment within the experiment. The experiment successfully demonstrated the concept of X-ray `RADAR' imaging, achieved by using the accurate timing information of the backscattered X-rays relative to the ultra-short laser pulse used to generate the electron beam. By using fast response X-ray detectors it was possible to derive range information for the test objects being scanned. An X-ray radar `image' (equivalent to a RADAR B-scan slice) was produced by combining individual X-ray temporal profiles collected at different points along a horizontal distance line scan. The same image formation process was used to generate

  10. Where is Particle Physics Going? arXiv

    CERN Document Server

    Ellis, John

    The answer to the question in the title is: in search of new physics beyond the Standard Model, for which there are many motivations, including the likely instability of the electroweak vacuum, dark matter, the origin of matter, the masses of neutrinos, the naturalness of the hierarchy of mass scales, cosmological inflation and the search for quantum gravity. So far, however, there are no clear indications about the theoretical solutions to these problems, nor the experimental strategies to resolve them. It makes sense now to prepare various projects for possible future accelerators, so as to be ready for decisions when the physics outlook becomes clearer. Paraphrasing George Harrison, "If you don't yet know where you're going, any road may take you there."

  11. From physical principles to relativistic classical Hamiltonian and Lagrangian particle mechanics

    CERN Document Server

    Carcassi, Gabriele

    2015-01-01

    We show that classical particle mechanics (Hamiltonian and Lagrangian consistent with relativistic electromagnetism) can be derived from three fundamental assumptions: infinite reducibility, deterministic and reversible evolution, and kinematic equivalence. The core idea is that deterministic and reversible systems preserve the cardinality of a set of states, which puts considerable constraints on the equations of motion. This perspective links different concepts from different branches of math and physics (e.g. cardinality of a set, cotangent bundle for phase space, Hamiltonian flow, locally Minkowskian space-time manifold), providing new insights. The derivation strives to use definitions and mathematical concepts compatible with future extensions to field theories and quantum mechanics.

  12. The Particle Physics Playground website: tutorials and activities using real experimental data

    Science.gov (United States)

    Bellis, Matthew; CMS Collaboration

    2016-03-01

    The CERN Open Data Portal provides access to data from the LHC experiments to anyone with the time and inclination to learn the analysis procedures. The CMS experiment has made a significant amount of data availible in basically the same format the collaboration itself uses, along with software tools and a virtual enviroment in which to run those tools. These same data have also been mined for educational exercises that range from very simple .csv files that can be analyzed in a spreadsheet to more sophisticated formats that use ROOT, a dominant software package in experimental particle physics but not used as much in the general computing community. This talk will present the Particle Physics Playground website (http://particle-physics-playground.github.io/), a project that uses data from the CMS experiment, as well as the older CLEO experiment, in tutorials and exercises aimed at high school and undergraduate students and other science enthusiasts. The data are stored as text files and the users are provided with starter Python/Jupyter notebook programs and accessor functions which can be modified to perform fairly high-level analyses. The status of the project, success stories, and future plans for the website will be presented. This work was supported in part by NSF Grant PHY-1307562.

  13. A Word from the DG: Preparing the strategy for European particle physics

    CERN Multimedia

    2006-01-01

    Particle physics is an increasingly globalized field, with the LHC marking the turning point from regional to world-wide organization. Although still a European-led project, the LHC is the first accelerator that CERN has built with help from non-Member States, and its experiments are the most international collaboration that particle physics has ever known. For Europe to engage in this process of globalization for future projects, and to maintain a leading position in the field, we need a European strategy. The European Commission is considering introducing basic research in possible actions during its R&D framework programme (2007-2013). It is with this in mind that the CERN Council established a strategy group in 2005. The group was asked to define and prioritize technical options in preparing a long-term vision for European particle physics for presentation to Council at a special meeting in Lisbon on 14 July this year. CERN Council's decision to establish the strategy group recognizes the distinctio...

  14. Charting the future frontier(s) of particle production

    CERN Document Server

    Rafelski, Jan

    2016-01-01

    This short note describes the long collaborative effort between Arizona and Krak\\'ow, showing some of the key strangeness signatures of quark-gluon plasma. It further presents an annotated catalog of foundational questions defining the research frontiers which I believe can be addressed in the foreseeable future in the context of relativistic heavy ion collision experiments. The list includes topics that are specific to the field, and ventures towards the known-to-be-unknown that may have a better chance with ions as compared to elementary interactions.

  15. New Concepts in Particle Physics from Solution of old Problem

    CERN Document Server

    Schrör, B

    2000-01-01

    This is a survey on recent progress in the understanding of some profound issues concerning the relation between on- and off-shell concepts in local quantum physics. Proofs for special situations have already appeared in previous publications. This present frame built on modular localization is wide enough to cover such disparate looking issues as d=1+1 factorizing theories, holographic images of QFT and scanning of higher dimensional QFT by families of chiral conformal theories. The present theory has common historical roots with the (old) string theory. But in contrast to string theory these new structures are primarily used as new tools in constructing models of local quantum particle physics i.e. they are not placed exclusively to the realm of quantum matter in curved spacetime. The new framework is within an algebraic setting of local quantum physics which de-emphasizes field-coordinatizations in favor of nets of algebras and relations between different nets, i.e. it is the same framework in which Rehren...

  16. Review of lattice results concerning low-energy particle physics

    CERN Document Server

    Aoki, S; Becirevic, D; Bernard, C; Blum, T; Colangelo, G; Della Morte, M; Dimopoulos, P; Dürr, S; Fukaya, H; Golterman, M; Gottlieb, Steven; Hashimoto, S; Heller, U M; Horsley, R; Jüttner, A; Kaneko, T; Lellouch, L; Leutwyler, H; Lin, C -J D; Lubicz, V; Lunghi, E; Mawhinney, R; Onogi, T; Pena, C; Sachrajda, C T; Sharpe, S R; Simula, S; Sommer, R; Vladikas, A; Wenger, U; Wittig, H

    2016-01-01

    We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0), arising in the semileptonic K -> pi transition at zero momentum transfer, as well as the decay constant ratio fK/fpi and its consequences for the CKM matrix elements Vus and Vud. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of SU(2)LxSU(2)R and SU(3)LxSU(3)R Chiral Perturbation Theory. We review the determination of the BK parameter of neutral kaon mixing as well as the additional four B parameters that arise in theories of physics beyond the Standard Model. The latter quantities are an addition compared to the previous review. For the heavy-quark sector, we provide results for mc and mb (also new compared to the previous review), as well as those for D- and B-meson decay constants, form factors, and mixing p...

  17. Report of the first three years of the initiative in accelerator R and D for particle physics

    CERN Document Server

    Norton, P

    2002-01-01

    The 'Particle Accelerators for Particle Physics' initiative was jointly funded by PPARC and CCLRC for three years, starting in 1999. The main objective was to re-create and re-establish within the UK the tradition of research and development into accelerator technology for particle physics applications, either at the high energy or the high luminosity frontier. This would enable the UK to evaluate for itself how it would wish to contribute to future international particle physics facilities, with the option of making the contribution to the machine 'in kind' (as is done with the detectors). The major international particle physics laboratories (CERN, DESY, FNAL, SLAC) with whom the UK particle physics community has worked over the past twenty years warmly welcomed this initiative. The scientific case for the next generation of facilities beyond the LHC, HERA, the B-factories and the Tevatron is now well developed. There is general agreement, underlined by the OECD Global Science Forum report by the Consultati...

  18. Particle physics brick by brick atomic and subatomic physics explained... in LEGO

    CERN Document Server

    Still, Ben

    2017-01-01

    Using LEGO (R) blocks to create a uniquely visual and clear depiction of the way our universe is put together. This is the perfect introduction to the enigmatic and fascinating world of Quantum Physics.Our story starts with the Big Bang, and along the way, the constructs and interactions within and among atoms and sub-atomic particles, and the forces that play upon them, are clearly explained, with each LEGO (R) block representing a different atomic or sub-atomic particle. The different colours and size denote what that particle is and its relationship with the other 'building blocks'.Each chapter is presented in digestible chunks, using toy building blocks to illustrate the ideas and experiments that have led to some of the biggest discoveries of the past 150 years.Soon you'll be able to construct every element in the Universe using a box of LEGO (R) and this book!

  19. Particle physics and cosmology, Task C. Progress report, January 1992--April 1993

    Energy Technology Data Exchange (ETDEWEB)

    Turner, M.S.

    1993-05-01

    The research has spanned many topics at the boundary of particle physics and cosmology. The major focus has been in the general areas of inflationary cosmology, cosmological phase transitions, astrophysical constraints to particle physics theories, and dark matter/structure formation as it relates to particle physics. Some attention is given to axion physics. Narrative summaries of the research of the individual group members are given, followed by a list of publications.

  20. Searching for ``Preparation for Future Learning'' in Physics

    Science.gov (United States)

    Etkina, Eugenia; Gentile, Michael; Karelina, Anna; Ruibal-Villasenor, Maria R.; Suran, Gregory

    2009-11-01

    "Preparation for future learning" is a term describing a new approach to transfer. In addition to focusing on learning environments that help students better apply developed knowledge in new situations; education researchers are searching for educational interventions that better prepare students to learn new information. The pioneering studies in this field were conducted by J. Branford and D. Schwartz in psychology and mathematics, specifically in the area of statistics. They found that students who engaged in innovation before being exposed to new material, learned better. We attempted to replicate their experiments in the field of physics, specifically in the area of conductivity. Using two experimental conditions and one control, we compared student learning of thermal and electrical conductivity from a written text. We present the results of groups' performance on seven qualitative questions after their learning in this area.

  1. Proceedings of the Summer institute on particle physics: The top quark and the electroweak interaction

    Energy Technology Data Exchange (ETDEWEB)

    Burke, D.; Dixon, L.; Leith, D.W.G.S.

    1997-01-01

    The XXIII SLAC Summer Institute on Particle Physics addressed the physics of the recently discovered top quark, and its connection to the electroweak interaction and to physics beyond the Standard Model. The seven-day school portion of the Institute covered many avenues for studying the top quark, from its direct production at hadron colliders and at future electron-positron colliders, to its virtual effects in precision electroweak quantities, in heavy flavor physics, and in the renormalization of supersymmetric theories, Vertex detectors - critical for identifying the b quark decay products of the top - and Cherenkov techniques for particle identification were also reviewed. The Institute concluded with a three-day topical conference covering recent developments in theory and experiment; this year, the highlights were the CDF and D0 top quark discovery. Also featured were updated precision electroweak measurements from SLC, LEP, and the Tevatron, heavy quark results from these facilities as well as CLEO, and new photoproduction and deep-inelastic scattering data from HERA. Separate abstracts have been submitted to the energy database for articles from this proceedings.

  2. Towards Reproducible Research Data Analyses in LHC Particle Physics

    CERN Document Server

    Simko, Tibor

    2017-01-01

    The reproducibility of the research data analysis requires having access not only to the original datasets, but also to the computing environment, the analysis software and the workflow used to produce the original results. We present the nascent CERN Analysis Preservation platform with a set of tools developed to support particle physics researchers in preserving the knowledge around analyses so that capturing, sharing, reusing and reinterpreting data becomes easier. The presentation will focus on three pillars: (i) capturing structured knowledge information about data analysis processes; (ii) capturing the computing environment, the software code, the datasets, the configuration and other information assets used in data analyses; (iii) re-instantiating of preserved analyses on a containerised computing cloud for the purposes of re-validation and re-interpretation.

  3. [Research in theoretical and experimental elementary particle physics. Final report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-11-01

    This report gives summaries of particle physics research conducted by different group members for Task A. A summary of work on the CLEO experiment and detector is included for Task B along with a list of CLEO publications. During the present grant period for Task C, the authors had responsibility for the design, assembly, and programming of the high-resolution spectrometer which looks for narrow peaks in the output of the cavity in the LLNL experiment. They successfully carried out this task. Velocity peaks are expected in the spectrum of dark matter axions on Earth. The computing proposal (Task S) is submitted in support of the High Energy Experiment (CLEO, Fermilab, CMS) and the Theory tasks.

  4. Particle Physics Seminar: Towards 3+1 Neutrino Mixing

    CERN Multimedia

    Geneva University

    2011-01-01

    GENEVA UNIVERSITY Ecole de physique Département de physique nucléaire et corspusculaire 24, quai Ernest-Ansermet 1211 Genève 4 Tél.: (022) 379 62 73 Fax: (022) 379 69 92 Wednesday  12 October  2011 PARTICLE PHYSICS SEMINAR at 17.00 hrs – Stückelberg Auditorium “Towards 3+1 Neutrino Mixing” Par Prof. Carlo Giunti, INFN Torino I will review the recent experimental indications in favor of  short-baseline neutrino oscillations. I will discuss their interpretation in the framework of neutrino mixing schemes with one or more sterile neutrinos which have masses around the eV scale. Taking into account also cosmological constraints, I will present arguments in favor of 3+1 neutrino mixing with one sterile neutrino at the eV scale. Information : http://dpnc.unige.ch/seminaire/annonce.html Organizer : G. Pasztor

  5. Cross-platform validation and analysis environment for particle physics

    CERN Document Server

    Chekanov, S V; Wilbern, D

    2015-01-01

    A multi-platform validation and analysis framework for public Monte Carlo simulation for high-energy particle collisions is discussed. The front-end of this framework uses the Python programming language, while the back-end is written in Java, which provides a multi-platform environment that can be run from a web browser and can easily be deployed at the grid sites. The analysis package includes all major software tools used in high-energy physics, such as Lorentz vectors, jet algorithms, histogram packages, graphic canvases, and tools for providing data access. This multi-platform software suite, designed to minimize OS-specific maintenance and deployment time, is used for online validation of Monte Carlo event samples through a web interface.

  6. Cross-platform validation and analysis environment for particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Chekanov, S. V.; Pogrebnyak, I.; Wilbern, D.

    2017-01-01

    A multi-platform validation and analysis framework for public Monte Carlo simulation for high-energy particle collisions is discussed. The front-end of this framework uses the Python programming language, while the back-end is written in Java, which provides a multi-platform environment that can be run from a web browser and can easily be deployed at the grid sites. The analysis package includes all major software tools used in high-energy physics, such as Lorentz vectors, jet algorithms, histogram packages, graphic canvases, and tools for providing data access. This multi-platform software suite, designed to minimize OS-specific maintenance and deployment time, is used for online validation of Monte Carlo event samples through a web interface.

  7. REPORT OF RESEARCH ACCOMPLISHMENTS AND FUTURE GOALS HIGH ENERGY PHYSICS

    Energy Technology Data Exchange (ETDEWEB)

    Wise, Mark B. [California Institute of Technology; Kapustin, Anton N. [California Institute of Technology; Schwarz, John Henry [California Institute of Technology; Carroll, Sean [California Institute of Technology; Ooguri, Hirosi [California Institute of Technology; Gukov, Sergei [California Institute of Technology; Preskill, John [California Institute of Technology; Hitlin, David G. [California Institute of Technology; Porter, Frank C. [California Institute of Technology; Patterson, Ryan B. [California Institute of Technology; Newman, Harvey B. [California Institute of Technology; Spiropulu, Maria [California Institute of Technology; Golwala, Sunil [California Institute of Technology; Zhu, Ren-Yuan

    2014-08-26

    Caltech High Energy Physics (HEP) has a broad program in both experimental and theoretical physics. We are known for our creativity and leadership. The future is uncertain and we strive to be involved in all the major areas of experimental and theoretical HEP physics so no matter where the important discoveries occur we are well positioned to play an important role. An outstanding group of postdoctoral scholars, graduate students, staff scientists, and technical and administrative personnel support our efforts in experimental and theoretical physics. The PI’s on this grant are involved in the following program of experimental and theoretical activities: I) EXPERIMENTAL PHYSICS Our CMS group, led by Harvey Newman and Maria Spiropulu, has played a key role in the discovery and interpretation of the Higgs boson and in searches for new physics. They have important hardware responsibilities in both ECAL and HCAL and are also involved in the upgrades needed for the High Luminosity LHC. Newman's group also develops and operates Grid-based computing, networking, and collaborative systems for CMS and the US HEP community. The charged lepton (Mu2e) and quark BaBar flavor physics group is led by David Hitlin and Frank Porter. On Mu2e they have been instrumental in the design of the calorimeter. Construction responsibilities include one third of the crystals and associated readout as well as the calibration system. They also will have responsibility for a major part of the online system software. Although data taking ceased in 2008 the Caltech BaBar group is active on several new forefront analyses. The neutrino group is led by Ryan Patterson. They are central to NOvA's core oscillation physics program, to calibration, and to detector readiness being responsible for the production and installation of 12,000 APD arrays. They have key roles in neutrino appearance and disappearance analysis in MINOS and MINOS+. Sunil Golwala leads the dark matter direct detection

  8. European Particle Physics Masterclasses Make Students into Scientists for a Day

    Science.gov (United States)

    Johansson, K. E.; Kobel, M.; Hillebrandt, D.; Engeln, K.; Euler, M.

    2007-01-01

    In 2005 the European particle physics masterclasses attracted 3000 students from 18 European countries to visit one of 58 universities and education centres. The participants worked with data from real high energy particle collisions, learned about particle physics, and experienced research and education environments at European universities. In…

  9. Physics prospects of future neutrino oscillation experiments in Asia

    CERN Document Server

    Hagiwara, K

    2004-01-01

    The three neutrino model has 9 physical parameters, 3 neutrino masses, 3 mixing angles and 3 CP violating phases. Among them, neutrino oscillation experiments can probe 6 parameters: 2 mass squared differences, 3 mixing angles, and 1 CP phase. The experiments performed so far determined the magnitudes of the two mass squared differences, the sign of the smaller mass squared difference, the magnitudes of two of the three mixing angles, and the upper bound on the third mixing angle. The sign of the larger mass squared difference (the neutrino mass hierarchy pattern), the magnitude of the third mixing angle and the CP violating phase, and a two-fold ambiguity in the mixing angle that dictates the atmospheric neutrino oscillation should be determined by future oscillation experiments. In this talk, I introduce a few ideas of future long baseline neutrino oscillation experiments which make use of the super neutrino beams from J-PARC (Japan Proton Accelerator Research Complex) in Tokai village. We examine the poten...

  10. ICARUS T600: physics results and future activities

    Science.gov (United States)

    Zani, Andrea

    2016-11-01

    The ICARUS T600 detector has proven the effectiveness of Liquid Argon TPC technology with a successful three-year long run at the INFN Gran Sasso National Laboratories (LNGS). ICARUS T600 LNGS data strongly contributed to the global effort in searching for neutrino oscillations mediated by sterile states. A definitive clarification of the sterile neutrino puzzle will come from the new multi-station, Short Baseline Neutrino (SBN) experiment at the Booster Neutrino Beam (BNB) at Fermilab, where a refurbished T600 will act as Far Detector. Presently the T600 detector is located at CERN, undergoing a major overhauling which will allow its participation in the 5 years program of the Fermilab upcoming SBN project. Moreover, ICARUS T600 is also foreseen to collect data with the NUMI Beam to be later exploited in the wider picture of the DUNE Long-Baseline project, recently undertaken by the United States community. This contribution will report the present physics results obtained by the ICARUS Collaboration, as well as describe the overhauling activities and the physics program for the detector in its future deployment at Fermilab.

  11. In the depths of the particle world. Searched for: New physics beyond the Higgs; In den Tiefen der Teilchenwelt. Gesucht: Eine neue Physik jenseits des Higgs

    Energy Technology Data Exchange (ETDEWEB)

    Beckers, Mike (comp.)

    2015-07-01

    The following topics are dealt with: Particle accelerators of the future, expected surprises from the LHC, the reality in quantum field theory, expected LHC results in string theory, the internal structure of the quarks, supersymmetry in the crisis, the search for ultralight particles, new physics with neutrinos, the still unknown properties of the neutrinos, the proton radius, the internal structure of the neutron. (HSI)

  12. J. J. Sakurai Prize for Theoretical Particle Physics Talk: Collider Physics: Yesterday, Today and Tomorrow

    Science.gov (United States)

    Eichten, Estia

    2011-04-01

    More than a quarter century ago, theoretical issues with the Standard Model scalar boson sector inspired theorists to develop alternative models of electroweak symmetry breaking. The goal of the EHLQ study of hadron collider physics was to help determine the basic parameters of a supercollider that could distinguish these alternatives. Now we await data from the CMS and ATLAS experiments at CERN's Large Hadron Collider to solve this mystery. Does the Standard Model survive or, as theorists generally expect, does new physics appear (Strong Dynamics, SUSY, Extra Dimensions,...)? Even well into the LHC era it is likely that questions about the origin of fermion mass and mixings will remain and new physics will bring new puzzles. This time, the associated new scales are unknown. The opportunity to address new physics at a future multi-TeV lepton collider is briefly addressed.

  13. Review of lattice results concerning low-energy particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Colangelo, G.; Leutwyler, H.; Wenger, U. [Universitaet Bern, Albert Einstein Center for Fundamental Physics, Institut fuer Theoretische Physik, Bern (Switzerland); Duerr, S. [Bergische Universitaet Wuppertal, Wuppertal (Germany); Forschungszentrum Juelich, Juelich Supercomputing Centre, Juelich (Germany); Juettner, A.; Necco, S. [CERN, Physics Department, TH Unit, Geneva 23 (Switzerland); Lellouch, L. [Centre de Physique Theorique, Marseille (France); Lubicz, V. [Universita Roma Tre (Italy); INFN, Dipartimento di Fisica, Rome (Italy); Sachrajda, C.T. [University of Southampton, School of Physics and Astronomy, Southampton (United Kingdom); Simula, S. [INFN, Sezione di Roma Tre, Rome (Italy); Vladikas, A. [Universita di Roma Tor Vergata (Italy); INFN, Sezione di Tor Vergata, Rome (Italy); Wittig, H. [University of Mainz, Institut fuer Kernphysik (Germany); Helmholtz Institute Mainz, Mainz (Germany)

    2011-07-15

    We review lattice results relevant for pion and kaon physics with the aim of making them easily accessible to the particle physics community. Specifically, we review the determination of the light-quark masses, the form factor f{sub +}(0), relevant for the semileptonic K{yields}{pi} transition at zero momentum transfer as well as the ratio f{sub K} /f{sub {pi}} of decay constants and discuss the consequences for the elements V{sub us} and V{sub ud} of the CKM matrix. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of SU(2){sub L} x SU(2){sub R} and SU(3){sub L} x SU(3){sub R} Chiral Perturbation Theory and review the determination of the B{sub K} parameter of neutral kaon mixing. We introduce quality criteria and use these when forming averages. Although subjective and imperfect, these criteria may help the reader to judge different aspects of current lattice computations. Our main results are summarized in Sect. 1.2, but we stress the importance of the detailed discussion that underlies these results and constitutes the bulk of the present review. (orig.)

  14. Review of lattice results concerning low-energy particle physics

    Energy Technology Data Exchange (ETDEWEB)

    Aoki, S. [Kyoto University, Yukawa Institute for Theoretical Physics, Kyoto (Japan); Aoki, Y. [Nagoya University, Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI), Nagoya (Japan); Brookhaven National Laboratory, RIKEN BNL Research Center, Upton, NY (United States); Bernard, C. [Washington University, Department of Physics, Saint Louis, MO (United States); Blum, T. [Brookhaven National Laboratory, RIKEN BNL Research Center, Upton, NY (United States); University of Connecticut, Physics Department, Storrs, CT (United States); Colangelo, G.; Leutwyler, H.; Necco, S.; Wenger, U. [Institut fuer theoretische Physik, Universitaet Bern, Albert Einstein Center for Fundamental Physics, Bern (Switzerland); Della Morte, M. [University of Southern Denmark, CP3-Origins and Danish IAS, Odense M (Denmark); IFIC (CSIC), Paterna (Spain); Duerr, S. [Bergische Universitaet Wuppertal, Wuppertal (Germany); Juelich Supercomputing Center, Juelich (Germany); El-Khadra, A.X. [University of Illinois, Department of Physics, Urbana, IL (United States); Fukaya, H.; Onogi, T. [Osaka University, Department of Physics, Osaka (Japan); Horsley, R. [University of Edinburgh, School of Physics, Edinburgh (United Kingdom); Juettner, A.; Sachrajda, C.T. [University of Southampton, School of Physics and Astronomy, Southampton (United Kingdom); Kaneko, T. [High Energy Accelerator Research Organization (KEK), Ibaraki (Japan); Laiho, J. [University of Glasgow, SUPA, Department of Physics and Astronomy, Glasgow (United Kingdom); Syracuse University, Department of Physics, Syracuse, New York (United States); Lellouch, L. [Aix-Marseille Universite, CNRS, CPT, UMR 7332, Marseille (France); Universite de Toulon, CNRS, CPT, UMR 7332, La Garde (France); Lubicz, V. [Universita Roma Tre, Dipartimento di Matematica e Fisica, Rome (Italy); Sezione di Roma Tre, INFN, Rome (Italy); Lunghi, E. [Indiana University, Physics Department, Bloomington, IN (United States); Pena, C. [Universidad Autonoma de Madrid, Instituto de Fisica Teorica UAM/CSIC and Departamento de Fisica Teorica, Madrid (Spain); Sharpe, S.R. [University of Washington, Physics Department, Seattle, WA (United States); Simula, S. [Sezione di Roma Tre, INFN, Rome (Italy); Sommer, R. [NIC rate at DESY, Zeuthen (Germany); Water, R.S.V. de [Fermi National Accelerator Laboratory, Batavia, IL (United States); Vladikas, A. [Universita di Roma Tor Vergata, INFN, Sezione di Tor Vergata, c/o Dipartimento di Fisica, Rome (Italy); Wittig, H. [University of Mainz, PRISMA Cluster of Excellence, Institut fuer Kernphysik and Helmholtz Institute Mainz, Mainz (Germany); Collaboration: FLAG Working Group

    2014-09-15

    We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the lightquark masses, the form factor f{sub +}(0), arising in semileptonic K → π transition at zero momentum transfer, as well as the decay-constant ratio f{sub K}/f{sub π} of decay constants and its consequences for the CKM matrix elements V{sub us} and V{sub ud}. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of SU(2){sub L} x SU(2){sub R} andSU(3)L{sub L} x SU(3){sub R} Chiral Perturbation Theory and review the determination of the BK parameter of neutral kaon mixing. The inclusion of heavy-quark quantities significantly expands the FLAG scope with respect to the previous review. Therefore, we focus here on D- and B-meson decay constants, form factors, and mixing parameters, since these are most relevant for the determination of CKM matrix elements and the global CKM unitarity-triangle fit. In addition we review the status of lattice determinations of the strong coupling constant α{sub s}. (orig.)

  15. Review of lattice results concerning low energy particle physics

    CERN Document Server

    Colangelo, Gilberto; Juttner, Andreas; Lellouch, Laurent; Leutwyler, Heinrich; Lubicz, Vittorio; Necco, Silvia; Sachrajda, Christopher T; Simula, Silvano; Vladikas, Anastassios; Wenger, Urs; Wittig, Hartmut

    2011-01-01

    We review lattice results relevant for pion and kaon physics with the aim of making them easily accessible to the particle physics community. Specifically, we review the determination of the light-quark masses, the form factor f_+(0), relevant for the semileptonic K -> pi transition at zero momentum transfer as well as the ratio f_K/f_pi of decay constants and discuss the consequences for the elements V_{us} and V_{ud} of the CKM matrix. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of SU(2)_LxSU(2)_R and SU(3)_LxSU(3)_R Chiral Perturbation Theory and review the determination of the B_K parameter of neutral kaon mixing. We introduce quality criteria and use these when forming averages. Although subjective and imperfect, these criteria may help the reader to judge different aspects of current lattice computations. Our main results are summarized in section 1.2, but we stress the importance of the detailed discussion that underlies these results and constitute...

  16. Computational Particle Physics for Event Generators and Data Analysis

    CERN Document Server

    Perret-Gallix, Denis

    2013-01-01

    High-energy physics data analysis relies heavily on the comparison between experimental and simulated data as stressed lately by the Higgs search at LHC and the recent identification of a Higgs-like new boson. The first link in the full simulation chain is the event generation both for background and for expected signals. Nowadays event generators are based on the automatic computation of matrix element or amplitude for each process of interest. Moreover, recent analysis techniques based on the matrix element likelihood method assign probabilities for every event to belong to any of a given set of possible processes. This method originally used for the top mass measurement, although computing intensive, has shown its power at LHC to extract the new boson signal from the background. Serving both needs, the automatic calculation of matrix element is therefore more than ever of prime importance for particle physics. Initiated in the eighties, the techniques have matured for the lowest order calculations (tree-le...

  17. String theory and the crisis of particle physics II

    CERN Document Server

    Schroer, Bert

    2008-01-01

    This is a completely reformulated presentation of a previous paper hep-th/0611132 with the same title; this time with a much stronger emphasis on conceptual aspects of string theory and a detailed review of its already more than four decades lasting history within a broader context, including some little-known details. Although there have been several books and essays on the sociological impact and its philosophical implications, there is yet no serious attempt to scrutinize its claims about particle physics using the powerful conceptual arsenal of contemporary local quantum physics. I decided to leave the previous first version on the arXiv because it may be interesting to the reader to notice the change of viewpoint and the reason behind it. Other reasons for preventing my fist version to go into print and to rewite it in such a way that its content complies with my different actual viewpoint can be found at the end of the article. The central message, contained in sections 5 and 6, is that string theory is...

  18. Review of lattice results concerning low-energy particle physics.

    Science.gov (United States)

    Aoki, S; Aoki, Y; Bernard, C; Blum, T; Colangelo, G; Della Morte, M; Dürr, S; El-Khadra, A X; Fukaya, H; Horsley, R; Jüttner, A; Kaneko, T; Laiho, J; Lellouch, L; Leutwyler, H; Lubicz, V; Lunghi, E; Necco, S; Onogi, T; Pena, C; Sachrajda, C T; Sharpe, S R; Simula, S; Sommer, R; Van de Water, R S; Vladikas, A; Wenger, U; Wittig, H

    We review lattice results related to pion, kaon, [Formula: see text]- and [Formula: see text]-meson physics with the aim of making them easily accessible to the particle-physics community. More specifically, we report on the determination of the light-quark masses, the form factor [Formula: see text], arising in semileptonic [Formula: see text] transition at zero momentum transfer, as well as the decay-constant ratio [Formula: see text] of decay constants and its consequences for the CKM matrix elements [Formula: see text] and [Formula: see text]. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of [Formula: see text] and [Formula: see text] Chiral Perturbation Theory and review the determination of the [Formula: see text] parameter of neutral kaon mixing. The inclusion of heavy-quark quantities significantly expands the FLAG scope with respect to the previous review. Therefore, we focus here on [Formula: see text]- and [Formula: see text]-meson decay constants, form factors, and mixing parameters, since these are most relevant for the determination of CKM matrix elements and the global CKM unitarity-triangle fit. In addition we review the status of lattice determinations of the strong coupling constant [Formula: see text].

  19. Review of lattice results concerning low energy particle physics

    CERN Document Server

    Aoki, Sinya; Bernard, Claude; Blum, Tom; Colangelo, Gilberto; Della Morte, Michele; Dürr, Stephan; Khadra, Aida X El; Fukaya, Hidenori; Horsley, Roger; Kaneko, Takeshi; Jüttner, Andreas; Laiho, Jack; Lellouch, Laurent; Leutwyler, Heinrich; Lubicz, Vittorio; Lunghi, Enrico; Necco, Silvia; Onogi, Tetsuya; Pena, Carlos; Sachrajda, Christopher T; Sharpe, Stephen R; Shigemitsu, Junko; Simula, Silvano; Sommer, Rainer; Van de Water, Ruth S; Vladikas, Anastassios; Wenger, Urs; Wittig, Hartmut

    2013-01-01

    We review lattice results related to pion, kaon, D- and B-meson physics with the aim of making them easily accessible to the particle physics community. More specifically, we report on the determination of the light-quark masses, the form factor f+(0), arising in semileptonic K -> pi transition at zero momentum transfer, as well as the decay constant ratio fK/fpi of decay constants and its consequences for the CKM matrix elements Vus and Vud. Furthermore, we describe the results obtained on the lattice for some of the low-energy constants of SU(2)LxSU(2)R and SU(3)LxSU(3)R Chiral Perturbation Theory and review the determination of the BK parameter of neutral kaon mixing. The inclusion of heavy-quark quantities significantly expands the FLAG scope with respect to the previous review. Therefore, for this review, we focus on D- and B-meson decay constants, form factors, and mixing parameters, since these are most relevant for the determination of CKM matrix elements and the global CKM unitarity-triangle fit.

  20. Data acquisition and control in particle physics and astronomy

    Science.gov (United States)

    Nixon, Gilbert

    To help understand the nature of matter and energy, Man has built sophisticated instruments with which to study the interactions of particles that have been accelerated to very high energies, creating, in microcosm, conditions thought to have existed at the time of origin of the universe (according to the big bang theory). These so-called particle colliders have been developed over a number of years to yield increasing interaction energies and energy resolution, resulting in improved particle identification. In this way, scientists have been able to detect particles produced as interaction products, leading to a 'standard model' of the structure of matter. At the same time the greatest laboratory of all, the universe itself, has been yielding ever increasing amounts of information. New telescopes such as the 'Hubble" and a new generation of 8-10 metre ground-based telescopes are already opening up new vistas of space, promising a much more detailed picture of the universe than hitherto. This thesis is about data acquisition and control in the two areas of research mentioned above. The first part deals with the design and construction of two data readout controllers for high energy physics experiments. Of these, the former was intended (and has been adopted in essence) for the data acquisition system of the ZEUS central tracking detector at DESY, Hamburg, and is based on the use of transputers for both controlling and data processing functions. The latter was developed with the much more demanding requirements of the projected Large Hadron Collider experiments in mind, and uses transputers as system controllers alongside other, more specialised, processors used for data reduction and trigger formation. The second part of the thesis concerns the use of an embedded processor in a totally different environment, namely, as the controlling element of an active polishing device intended for the production of highly aspherical optical mirrors for astronomical telescopes