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Sample records for 4th atlas physics

  1. 4th ATLAS Physics Workshop (Athens) - Report from the Physics Sessions

    Kersevan, B P

    The 4th ATLAS Physics Workshop provided a showcase for studies of some of the most exciting aspects of LHC physics, both within the Standard Model and beyond. It was clear from the wide range of topics covered, from QCD studies to TeV-scale Black Hole production, that preparations are well in hand for understanding whatever Nature, and the LHC, may throw at us. The Standard Model session concentrated on QCD and Electroweak physics, which will form the core of the ATLAS physics program during the first years of LHC operation. Convenor Matt Dobbs began by summarising recent and ongoing studies and pointed out that the first ATLAS papers will aim to prove that we understand LHC physics in the regime where the Standard Model is reliable. Only then will we be able to make convincing claims for the existence of New Physics. Subsequent talks discussed our understanding of this 'bread-and-butter' physics, including minimum bias processes and underlying events (Arthur Moraes), Parton Distribution Functions (Jon Butte...

  2. The 4th ATLAS Physics Workshop in Athens: The discussions, social events, environment, atmosphere, etc.

    Kawagoe, K

    Over 220 people attended the 4th Atlas Software Workshop in Athens, Greece, a place with a history of thousands of years of scientific achievement. The workshop was hosted by the University of Athens, the National Technical University of Athens, and the Aristotle University of Thessalonki. The venue for the meeting was the newly opened Conference Center of the Physics Department of the University of Athens which featured very comfortable plush red chairs (too comfortable for some of the more jet-lagged workshop participants!). Fig.1. Participants gathering in front of the Conference Center. The workshop schedule was structured to allow plenty of time during breaks for the many lively discussions that developed from the presentations. Ample supplies of coffee, juice, and cookies fueled the discussions. Discussions continued over lunches featuring Greek Salads and other tasty fare. The food was so good that one speaker offered the meal tickets as prize for answering a quiz at the end of her talk! The w...

  3. Medical Imaging Physics, 4th Edition

    Hendee, William R.; Ritenour, E. Russell

    2002-05-01

    This comprehensive publication covers all aspects of image formation in modern medical imaging modalities, from radiography, fluoroscopy, and computed tomography, to magnetic resonance imaging and ultrasound. It addresses the techniques and instrumentation used in the rapidly changing field of medical imaging. Now in its fourth edition, this text provides the reader with the tools necessary to be comfortable with the physical principles, equipment, and procedures used in diagnostic imaging, as well as appreciate the capabilities and limitations of the technologies.

  4. Search for 4th family quarks with the ATLAS detector

    Ozcan, V E; Ünel, G

    2007-01-01

    The pair production of heavy fourth-generation quarks, which are predicted under the hypothesis of flavor democracy, is studied using tree-level Monte Carlo generators and fast detector simulation. Two heavy-quark mass values, 500 and 750$\\gev$, are considered with the assumption that the fourth family mixes primarily with the two light families. It is shown that a clear signature will be observed in the data collected by the ATLAS detector, after the first year of low-luminosity running at the Large Hadron Collider.

  5. Proceedings of the 4th Australian experimental high energy physics meeting and workshop

    The 4th Annual Meeting of the Australian High Energy Physics Consortium was held at ANSTO on the 11th and 12th of December, with a workshop on software development and applications held at the University f Sydney on the 13th. A wide range of talks on the progress of NOMAD and ATLAS experiments and related research were presented, plus talks on heavy ion physics which is also carried out in collaboration with CERN. Extended abstracts of the presentations are included in this volume

  6. PREFACE: 4th International Hadron Physics Conference (TROIA'14)

    Dağ, Hüseyin; Erkol, Güray; Küçükarslan, Ayşe; Özpineci, Altuğ

    2014-11-01

    The 4th International Conference on Hadron Physics, TROIA'14, was held at Canakkale, Turkey on 1-5 July 2014. Ozyegin University, Middle East Technical University, Canakkale Onsekiz Mart University, Turkish Atomic Energy Authority and HadronPhysics2 Consortium sponsored the conference. It aimed at bringing together the experts and the young scientists working on experimental and theoretical hadron physics. About 50 participants from 10 countries attended the conference. The topics covered included: . Chiral Perturbation Theory . QCD Sum Rules . Effective Field Theory . Exotic Hadrons . Hadron Properties from Lattice QCD . Experimental Results and Future Perspectives . Hadronic Distribution Amplitudes The conference presentations were organized such that the morning sessions contained invited talks and afternoon sessions were devoted to contributed talks. The speakers of the invited talks were: C. Alexandrou, A. Gal, L. Tolos, J.R. Pelaez and M. Schindler. We had also guest speakers D. A. Demir and T. Senger. The conference venue was a resort hotel around Canakkale. As a social program, a guided full-day excursion to the excavation site of the ancient Troia town and Assos was organized. We believe that this conference provided a medium for young scientists and experts in the field to effectively communicate and share ideas. We would like to express our sincere thanks to supporting agencies and to all participants for their contributions and stimulating discussions. We are also grateful to the Scientific Secretary, Bora Işıldak, and all other members of the Organizing Committee for their patience and efforts. 30.10.2014 The Editors

  7. 4th July 2011 - Russian Deputy Director-General Director of Directorate for Scientific and Technical Complex ROSATOM V. Pershukov in the ATLAS underground experimental area with Adviser T. Kurtyka, ATLAS Technical Coordinator M. Nessi and ATLAS Russian users.

    Maximilien Brice

    2011-01-01

    4th July 2011 - Russian Deputy Director-General Director of Directorate for Scientific and Technical Complex ROSATOM V. Pershukov in the ATLAS underground experimental area with Adviser T. Kurtyka, ATLAS Technical Coordinator M. Nessi and ATLAS Russian users.

  8. Physics Computing '92: Proceedings of the 4th International Conference

    de Groot, Robert A.; Nadrchal, Jaroslav

    1993-04-01

    The Table of Contents for the book is as follows: * Preface * INVITED PAPERS * Ab Initio Theoretical Approaches to the Structural, Electronic and Vibrational Properties of Small Clusters and Fullerenes: The State of the Art * Neural Multigrid Methods for Gauge Theories and Other Disordered Systems * Multicanonical Monte Carlo Simulations * On the Use of the Symbolic Language Maple in Physics and Chemistry: Several Examples * Nonequilibrium Phase Transitions in Catalysis and Population Models * Computer Algebra, Symmetry Analysis and Integrability of Nonlinear Evolution Equations * The Path-Integral Quantum Simulation of Hydrogen in Metals * Digital Optical Computing: A New Approach of Systolic Arrays Based on Coherence Modulation of Light and Integrated Optics Technology * Molecular Dynamics Simulations of Granular Materials * Numerical Implementation of a K.A.M. Algorithm * Quasi-Monte Carlo, Quasi-Random Numbers and Quasi-Error Estimates * What Can We Learn from QMC Simulations * Physics of Fluctuating Membranes * Plato, Apollonius, and Klein: Playing with Spheres * Steady States in Nonequilibrium Lattice Systems * CONVODE: A REDUCE Package for Differential Equations * Chaos in Coupled Rotators * Symplectic Numerical Methods for Hamiltonian Problems * Computer Simulations of Surfactant Self Assembly * High-dimensional and Very Large Cellular Automata for Immunological Shape Space * A Review of the Lattice Boltzmann Method * Electronic Structure of Solids in the Self-interaction Corrected Local-spin-density Approximation * Dedicated Computers for Lattice Gauge Theory Simulations * Physics Education: A Survey of Problems and Possible Solutions * Parallel Computing and Electronic-Structure Theory * High Precision Simulation Techniques for Lattice Field Theory * CONTRIBUTED PAPERS * Case Study of Microscale Hydrodynamics Using Molecular Dynamics and Lattice Gas Methods * Computer Modelling of the Structural and Electronic Properties of the Supported Metal Catalysis

  9. Preface: 4th DAE-BRNS Workshop on Hadron Physics

    The present volume contains the lectures and seminars presented at the Fourth Workshop in this series, which was held in Department of Physics, Aligarh Muslim University, Aligarh from February 18-23, 2008. The scope of the present workshop was to highlight the hadron structure as studied by the electroweak and strong probes. With the running of various electron accelerators at Bonn, MIT, Mainz and JLab, the study of hadron structure with electron and photon probes is of great topical interest. The production of mesons using photon and electron beams and the interaction of these mesons with the nucleons and nuclei gives important information about the hadron dynamics which can be obtained by studying processes like π-nucleus, K-nucleus and η-nucleus scattering. These topics were covered in most of the lectures presented at this workshop.

  10. PREFACE: 4th International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare2015)

    Vlachos, Dimitrios; Vagenas, Elias C.

    2015-09-01

    The 4th International Conference on Mathematical Modeling in Physical Sciences (IC-MSQUARE) took place in Mykonos, Greece, from Friday 5th June to Monday 8th June 2015. The Conference was attended by more than 150 participants and hosted about 200 oral, poster, and virtual presentations. There were more than 600 pre-registered authors. The 4th IC-MSQUARE consisted of different and diverging workshops and thus covered various research fields where Mathematical Modeling is used, such as Theoretical/Mathematical Physics, Neutrino Physics, Non-Integrable Systems, Dynamical Systems, Computational Nanoscience, Biological Physics, Computational Biomechanics, Complex Networks, Stochastic Modeling, Fractional Statistics, DNA Dynamics, Macroeconomics etc. The scientific program was rather intense as after the Keynote and Invited Talks in the morning, three parallel oral and one poster session were running every day. However, according to all attendees, the program was excellent with a high quality of talks creating an innovative and productive scientific environment for all attendees. We would like to thank the Keynote Speaker and the Invited Speakers for their significant contribution to IC-MSQUARE. We also would like to thank the Members of the International Advisory and Scientific Committees as well as the Members of the Organizing Committee.

  11. ATLAS fast physics monitoring

    Karsten Köneke; on behalf of the ATLAS Collaboration

    2012-11-01

    The ATLAS experiment at the Large Hadron Collider is recording data from proton–proton collisions at a centre-of-mass energy of 7 TeV since the spring of 2010. The integrated luminosity has grown nearly exponentially since then and continues to rise fast. The ATLAS Collaboration has set up a framework to automatically process the rapidly growing dataset and produce performance and physics plots for the most interesting analyses. The system is designed to give fast feedback. The histograms are produced within hours of data reconstruction (2–3 days after data taking). Hints of potentially interesting physics signals obtained this way are followed up by physics groups.

  12. Report on the 4th International IUPAP Women in Physics Conference

    Correa, Cynthia

    2011-10-01

    Stellenbosch, South Africa was the site of the 4^th International Union of Pure and Applied Physics (IUPAP) International Conference on Women in Physics, which took place on April 5^th-8^th. This conference brought together the diverse contributions of 250 female physicist attendees from nearly 60 countries worldwide to dissect the challenges faced by female physicists worldwide and to propose strategies to attract and retain more girls and women to the field. Having served as a member of the U.S. Delegation, I will discuss the resolutions reached and highlight the most important results of Global Survey of Physicists, where nearly 15,000 physicists shine light on how gender affects their lives and careers.

  13. ATLAS forward physics program

    HELLER, M; The ATLAS collaboration

    2010-01-01

    The variety of forward detectors installed in the vicinity of the ATLAS experiment allows to look over a wide range of forward physics topics. They ensure a good information about rapidity gaps, and the installation of very forward detectors (ALFA and AFP) will allow to tag the leading proton(s) remaining from the different processes studied. Most of the studies have to be done at low luminosity to avoid pile-up, but the AFP project offers a really exiting future for the ATLAS forward physics program. We also present how these forward detectors can be used to measure the relative and absolute luminosity.

  14. ATLAS Forward Detectors and Physics

    Soni, N

    2010-01-01

    In this communication I describe the ATLAS forward physics program and the detectors, LUCID, ZDC and ALFA that have been designed to meet this experimental challenge. In addition to their primary role in the determination of ATLAS luminosity these detectors - in conjunction with the main ATLAS detector - will be used to study soft QCD and diffractive physics in the initial low luminosity phase of ATLAS running. Finally, I will briefly describe the ATLAS Forward Proton (AFP) project that currently represents the future of the ATLAS forward physics program.

  15. Electroweak Physics at ATLAS

    Conti, G; The ATLAS collaboration

    2013-01-01

    Various electroweak measurements have already been performed at the ATLAS experiment since the start of the Large Hadron Collider at CERN. A review of the latest results in $W/Z$ and diboson physics will be given here. The $W/Z$ physics results include the measurement of the high-mass Drell-Yan di-lepton production cross section, the $Wb(b)$ production cross section and the study of the transverse momentum of $Z/\\gamma^*$. The latest $WW$, $WZ$, $ZZ$, $W\\gamma$ and $Z\\gamma$ production cross sections will be summarized, including updated $WW$ and $ZZ$ results. In particular, the $ZZ^*$ channel has been added. The ATLAS diboson results are also used to set limits on charged triple gauge couplings ($WWZ$, $WW\\gamma$) and on neutral triple gauge couplings ($Z\\gamma\\gamma$, $ZZ\\gamma$, $ZZZ$).

  16. The ATLAS Forward Physics Program

    Royon, Christophe

    2010-01-01

    We describe the ATLAS Forward Physics Program at low luminosity using the rapidity gap method and a dedicated detector called ALFA to tag the protons. We also describe the physics topics of the ATLAS Forward Physics Project at high instantaneous luminosity.

  17. Top Physics at ATLAS

    Barisonzi, Marcello

    2005-01-01

    The Large Hadron Collider LHC is a top quark factory: due to its high design luminosity, LHC will produce about 200 millions of top quarks per year of operation. The large amount of data will allow to study with great precision the properties of the top quark, most notably cross-section, mass and spin. The Top Physics Working Group has been set up at the ATLAS experiment, to evaluate the precision reach of physics measurements in the top sector, and to study the systematic effects of the ATLA...

  18. Electroweak Physics with ATLAS

    Akhundov, Arif

    2008-01-01

    The precision measurements of electroweak parameters of the Standard Model with the ATLAS detector at LHC are reviewed. An emphasis is put on the bridge connecting the ATLAS measurements with the SM analysis at LEP/SLC and the Tevatron.

  19. ATLAS cavern hand-over ceremony on 4th June 2003 in the presence of the President of the Swiss Confederation

    Jenni, P

    The 4th of June 2003 will be remembered as a very major milestone in the history of the ATLAS detector construction. In the presence of the President of the Swiss Confederation, Mr. Pascal Couchepin, the ATLAS cavern was handed over by the CERN Director-General, Professor Luciano Maiani, to the Collaboration. For this highly press-mediated event the CERN Director-General had invited some 100 political personalities and representatives from the Geneva and the neighbouring French regions, and from CERN Member and Non-Member States. The surface building was transformed for this occasion into an attractive multi- media hall with films and exhibitions from ATLAS and the civil engineering, with a bar and the CERN jazz band. Besides of course the cavern itself, the Swiss President visited also the ATLAS barrel toroid magnet and the LAr calorimeter assembly activities in Hall 180. The Swiss President visiting the Barrel Toroid integration work in Hall 180 He was very interested and impressed by these, aski...

  20. The ATLAS Forward Physics Program

    Pinfold, J L

    2009-01-01

    The ATLAS forward physics program is discussed in the light of the future detector upgrades under study. These developments will enhance the overall physics potential of the experiment. The physics topics presented include: luminosity determination using the LUCID and ALFA detectors; diffractive measurements that should be possible with early data; and, the AFP project which plans to deploy proton taggers at 220 and 420 m from the ATLAS IP. The AFP program includes such physics topics as hard diffraction; diffractive Higgs production,two photon physics; and, new physics in the forward region.

  1. ATLAS status and physics program

    Full text: The ATLAS detector will observe proton collisions in the Large Hadron Collider (LHC) at CERN, which is scheduled for commissioning in 2007. When operational the LHC will collide protons at a centre-of-mass energy of 14 TeV with nominally 2 X 108 collisions per second at each of four beam-crossing points. ATLAS has been optimised for the detection of the hypothesised Higgs Boson, the only missing component of the otherwise experimentally well-verified electro-weak theory. In addition ATLAS is also sensitive to many other physics processes including QCD, b-physics, heavy ion interactions and those that could provide first evidence for super-symmetry. The current status of the LHC and the various aspects of the ATLAS detector will be discussed as well as the ability of ATLAS to observe new physics. The Australian contributions to the ATLAS project will also be described. These include: 1. Development and implementation of components of the Semi-Conductor Tracker (SCT), which provides spatial information for charged particles traversing the ATLAS inner detector. 2. Fast algorithms for simulating electromagnetic events in the calorimeter. 3. Development and application of fast reconstruction algorithms within the ATLAS software framework. 4. Analysis of Monte-Carlo data produced using simulated models of the ATLAS detector. The information provided will determine the most efficient strategies in searching for new physics once collisions at the LHC commence. 5. Advances in grid computing to handle the storage, transfer and offline processing of data amassed by LHC experiments, which totals over 2.4 P-bytes per annum. Copyright (2005) Australian Institute of Physics

  2. Electroweak Physics at ATLAS

    Conti, G; The ATLAS collaboration

    2012-01-01

    Various electroweak measurements have already been performed at ATLAS since the start of the LHC. These allow for precision tests of the electroweak dynamics of the Standard Model, but also challenge next-to-next-to-leading-order predictions. Differences between measurements and SM predictions could prove evidence for new phenomena. A review of the latest results in W/Z and diboson physics will be given. Those consist of the measurement of the high-mass drell-yan differential cross section, the Wb(b) production cross section and the study of the transverse momentum of the Z/$\\gamma*$ using the $\\phi*$ variable, with 5fb$^{-1}$ of 2011 data. The latest diboson WW, WZ, ZZ, W$\\gamma$ and Z$\\gamma$ production cross sections will be summarized, including new WW and ZZ results. In particular, the ZZ* channel has been added. The diboson processes are an important source of background to Higgs production decaying into vector boson pairs, such as H$\\rightarrow$WW and H$\\rightarrow$ZZ, and also to other new physics pro...

  3. ATLAS physics results

    Mitsou, Vasiliki A

    2015-01-01

    The ATLAS experiment at the Large Hadron Collider at CERN has been successfully taking data since the end of 2009 in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV, and in heavy ion collisions. In these lectures, some of the most recent ATLAS results will be given on Standard Model measurements, the discovery of the Higgs boson, searches for supersymmetry and exotics and on heavy-ion results.

  4. PREFACE: 4th International Workshop & Summer School on Plasma Physics 2010

    2014-06-01

    Fourth International Workshop & Summer School on Plasma Physics 2010 The Fourth International Workshop & Summer School on Plasma Physics (IWSSPP'10) is organized by St. Kliment Ohridsky University of Sofia, with co-organizers TCPA Foundation, Association EURATOM/IRNRE, The Union of the Physicists in Bulgaria, and the Bulgarian Academy of Sciences. It was held in Kiten, Bulgaria, at the Black Sea Coast, from July 5 to July 10, 2010. The scientific programme covers the topics Fusion Plasma and Materials; Plasma Modeling and Fundamentals; Plasma Sources, Diagnostics and Technology. As the previous issues of this scientific meeting (IWSSPP'05, J. Phys.: Conf. Series 44 (2006) and IWSSPP'06, J. Phys.: Conf. Series 63 (2007), IWSSPP'08, J. Phys.: Conf. Series 207 (2010), its aim was to stimulate the creation and support of a new generation of young scientists for further development of plasma physics fundamentals and applications, as well as to ensure an interdisciplinary exchange of views and initiate possible collaborations by bringing together scientists from various branches of plasma physics. This volume of Journal of Physics: Conference Series includes 34 papers (invited lectures, contributed talks and posters) devoted to various branches of plasma physics, among them fusion plasma and materials, dc and microwave discharge modelling, transport phenomena in gas discharge plasmas, plasma diagnostics, cross sections and rate constants of elementary processes, material processing, plasma-chemistry and technology. Some of them have been presented by internationally known and recognized specialists in their fields; others are MSc or PhD students' first steps in science. In both cases, we believe they will raise readers' interest. We would like to thank the members of both the International Advisory Committee and the Local Organizing Committee, the participants who sent their manuscripts and passed through the (sometimes heavy and troublesome) refereeing and editing

  5. Top physics in ATLAS

    Naranjo, Roger

    2016-01-01

    These proceedings summarize the latest measurements on top production, top properties and searches using the ATLAS detector at the LHC. The measurements are performed on $pp$ collision data with a center of mass energy $\\sqrt{s} = 7, 8$ and $13$ TeV.

  6. PREFACE: 4th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE2014)

    Di Domenico, Antonio; Mavromatos, Nick E.; Mitsou, Vasiliki A.; Skliros, Dimitri P.

    2015-07-01

    The DISCRETE 2014: Fourth Symposium in the Physics of Discrete Symmetries took place at King's College London, Strand Campus, London WC2R 2LS, from Tuesday, December 2 2014 till Saturday, December 6 2014. This is the fourth Edition of the DISCRETE conference series, which is a biannual event, having been held previously in Valencia (Discrete'08), Rome (Discrete2010) and Lisbon (Discrete2012). The topics covered at the DISCRETE series of conferences are: T, C, P, CP symmetries; accidental symmetries (B, L conservation); CPT symmetry, decoherence and entangled states, Lorentz symmetry breaking (phenomenology and current bounds); neutrino mass and mixing; implications for cosmology and astroparticle physics, dark matter searches; experimental prospects at LHC, new facilities. In DISCRETE 2014 we have also introduced two new topics: cosmological aspects of non-commutative space-times as well as PT symmetric Hamiltonians (non-Hermitian but with real eigenvalues), a topic that has wide applications in particle physics and beyond. The conference was opened by the King's College London Vice Principal on Research and Innovation, Mr Chris Mottershead, followed by a welcome address by the Chair of DISCRETE 2014 (Professor Nick E. Mavromatos). After these introductory talks, the scientific programme of the DISCRETE 2014 symposium started. Following the tradition of DISCRETE series of conferences, the talks (138 in total) were divided into plenary-review talks (25), invited research talks (50) and shorter presentations (63) — selected by the conveners of each session in consultation with the organisers — from the submitted abstracts. We have been fortunate to have very high-quality, thought stimulating and interesting talks at all levels, which, together with the discussions among the participants, made the conference quite enjoyable. There were 152 registered participants for the event.

  7. DEGRO'98. 4th German congress on radiation oncology, biology, physics. Book of abstracts

    The special issue contains all abstracts of the congress papers and compact information on the subjects of poster sessions and refresher courses. The themes of the technical and poster sessions are: Radiation physics of brachytherapy, CT-simulation and dosimetry, positioning and verification, 3D planning, quality assurance, irradiation planning and imaging, portal imaging; radiobiology in the context of interactions in combined chemotherapy and radiotherapy, cytokine and fibrosis, radiosensitivity and repair, apoptosis, oxygen and radiation effects; CNS; Amifostine as a protective agent in radiotherapy and chemotherapy: breast cancer; upper gastro-intestinal tract; anti-inflammation and proliferation irradiation; stereotaxy; palliative treatments; head and neck cancer, irradiation techniques; hyperthermia; rectal carcinoma; urogenital tract; malignant lymphoma; eyes and orbita; cervical and corpus carcinoma; non-cat-cell bronchial carcinoma. (MG/CB)

  8. New ATLAS Higgs physics results

    CERN. Geneva

    2014-01-01

    New Higgs physics results from the ATLAS experiment using the full Run-1 LHC dataset, corresponding to an integrated luminosity of approximately 25 fb-1, of proton-proton collisions at 7 TeV and 8 TeV, will be presented.

  9. New Physics Searches with ATLAS

    Serhan Mete Alaettin

    2014-04-01

    Full Text Available Highlights from new physics searches with the ATLAS detector at the CERN Large Hadron Collider are presented. Results are based on the analysis of data collected in pp collisions at a center-of-mass energy of 7 TeV corresponding to integrated luminosities of 1-5 fb−1. No excess beyond the Standard Model expectations is observed.

  10. Forward Physics at the ATLAS experiment

    The ATLAS collaboration

    2009-01-01

    Poster summarize forward physics at the ATLAS experiment. It aims to AFP project which is the project to install forward detectors at 220m (AFP220) and 420m (AFP420) around ATLAS for measurements at high luminosity.

  11. U.S. Dietary and Physical Activity Guideline Knowledge and Corresponding Behaviors among 4th and 5th Grade Students: A Multi-Site Pilot Study

    Bea, Jennifer W.; Martinez, Stephanie; Armstrong-Florian, Traci; Farrell, Vanessa; Martinez, Cathy; Whitmer, Evelyn; Hartz, Vern; Blake, Samuel; Nicolini, Ariana; Misner, Scottie

    2014-01-01

    Knowledge of U.S. dietary and physical activity recommendations and corresponding behaviors were surveyed among 4th and 5th graders in five Arizona counties to determine the need for related education in SNAP-Ed eligible schools. A <70% target response rate was the criterion. Participants correctly identified recommendations for: fruit, 20%;…

  12. Forward Detectors and Physics at ATLAS

    Soni, N; The ATLAS collaboration

    2010-01-01

    This talk will cover the current Atlas forward detectors LUCID, ZDC, ALFA and the upgrade project AFP. The current forward detectors are dedicated for the luminosity measurements and the forward physics measurements at first low luminosity LHC phase. The AFP project will significantly extend the ATLAS physics program at high luminosities by tagging the very forward tagging protons.

  13. Forward physics at the ATLAS experiment

    Ruzicka, Pavel; The ATLAS collaboration

    2010-01-01

    This contribution describes forward physics measurements possible to make with current ATLAS forward detectors including the upgrade project AFP. The aim of AFP is to tag very forward going protons at high luminosities.

  14. An Exploratory Study of 4th, 5th, and 6th Grade Summer Camp Participants’ Attitudes and Intentions Towards Physical Activity

    Melissa Cater

    2015-10-01

    Full Text Available Physical inactivity is a growing problem among children, particularly school-aged youth. Research suggests children are especially prone to inactivity in the summer months when access to structured school-time and extra-curricular activities is reduced. Community programs like residential summer camps offer an excellent environment for engaging children in enjoyable physical activities while also helping them learn to be more physically active when they return home. Pre-existing attitudes often influence how much change a program inspires in an individual. The purpose of this study was to explore 4th, 5th, and 6th grade summer camp participants’ attitudes towards physical activity. Results of this study indicate that youth have a fairly neutral, though positive, attitude towards physical activity and that parental support of physical activity is still extremely important, even at this age. Campers also indicated relatively high intentions to remain physically active in the two weeks after the camp ended

  15. ATLAS trigger for first physics and beyond

    Fonseca-Martin, T

    2009-01-01

    ATLAS is a multi-purpose spectrometer built to perform precision measurements of Standard Model parameters and is aiming at discovery of Higgs particle, Super Symmetry and possible other physics channels beyond Standard Model. Operating at 14 TeV center of mass energy ATLAS will see 40 million events per second at nominal luminosity with about 25 overlapping interactions. Most of the events are inelastic proton-proton interactions with only few W, Z bosons or ttbar pairs produced each second, and expectations for Higgs or SUSY production cross-section are much smaller than that. ATLAS trigger has a difficult task to select one out of $10^5$ events online and to ensure that most physics channels of interests are preserved for analysis. In this talk we will review the design of ATLAS trigger system, the trigger menu prepared for initial LHC run as well as for high luminosity run. The expected trigger performance of the base-line ATLAS physics programs will be reviewed and first results from the commissioning pe...

  16. The 4th Thermodynamic Principle?

    It should be emphasized that the 4th Principle above formulated is a thermodynamic principle and, at the same time, is mechanical-quantum and relativist, as it should inevitably be and its absence has been one of main the theoretical limitations of the physical theory until today.We show that the theoretical discovery of Dimensional Primitive Octet of Matter, the 4th Thermodynamic Principle, the Quantum Hexet of Matter, the Global Hexagonal Subsystem of Fundamental Constants of Energy and the Measurement or Connected Global Scale or Universal Existential Interval of the Matter is that it is possible to be arrived at a global formulation of the four 'forces' or fundamental interactions of nature. The Einstein's golden dream is possible

  17. 4th IAEA technical meeting on ECRH physics and technology for ITER. Book of abstracts and programme

    In order to attain the necessary temperatures in a fusion reactor, auxiliary heating will have to be implemented in addition to the ohmic heating generated by the induced plasma current. Current profile control, which is indispensable to access advanced operation of a tokamak, can also be accomplished by auxiliary power systems. Moreover, some auxiliary power systems can in principle be used for instability suppression, thus improving the plasma performance. For ITER, several auxiliary power systems are foreseen which can deposit energy at different radial locations. These are the Neutral Beams and three wave launching systems: i) Electron Cyclotron (EC), ii) Ion Cyclotron (IC) and iii) Lower Hybrid (LH). The auxiliary power system for launching Electron Cyclotron (EC) waves for ITER is one of major importance because it can provide effective bulk heating, bulk current drive, and localized heating and current drive for instability control. Physics studies concerning wave/plasma interaction are progressing and new technology developments are being tested. These studies are necessary in order to better predict the operation and optimise the EC system for ITER. The IAEA-TM on ECRH Physics and Technology for ITER provided a forum for open discussion on the most recent experimental achievements both in technology and physics, focusing on those with implications for the ITER system design. Three meetings have already been held in the past (1999, Oharai, Japan, 2003, Kloster Seeon, Germany, and 2005, Como, Italy)

  18. New physics and DM searches from ATLAS

    Ould-Saada, Farid; The ATLAS collaboration

    2016-01-01

    Recent new physics results from the ATLAS experiment are presented. This includes searches for Dark Matter, in particular mono-X searches, interpreted within simplified models, effective field theory and supersymmetry. Other exotic searches are mentioned, including the few channels where small excess was reported.

  19. ATLAS B-physics overview

    Prospects on measurements in the B system with the ATLAS detector at the LHC are reviewed. Measurements of sin 2β in the Bd0→J/ψKS0 channel and δγ in the Bd0→J/ψphi channel are described. Two approaches for extracting angles from the hadronic two-body decays Bd0→π+π- and Bs0→K+K- are presented. Studies of Bs0 oscillations and of rare decays B→μ+μ-(X) are also conducted

  20. Physics with Photons in ATLAS

    CERN. Geneva

    2011-01-01

    The fine granularity ATLAS electromagnetic calorimeter provides a precise measurement of the photon energy and direction, as well as efficient rejection of background from fake photons, while the high precision inner detector allows also the reconstruction of photons that convert into electron-positron pairs.Isolated photons are measured using well-defined infrared-safe isolation criteria corrected for underlying event and the effects of additional proton-proton collisions. Differential cross sections for inclusive photons and diphotons are presented, and the spectrum of diphoton production is used to search for the Higgs boson in this decay channel.

  1. Latest B -physics results from ATLAS

    Kirk, J.; Atlas Collaboration

    2016-07-01

    Recent B -physics measurements from the ATLAS detector at the LHC are presented using data collected during 2011 and 2012. Charmonium production cross-sections are measured and compared to theoretical predictions. First measurements of the production of J/ ψ mesons in association with vector bosons are presented. The first observation of an excited Bc meson and a search for the Xb are also reported.

  2. Physics analysis tools for beauty physics in ATLAS

    Anastopoulos, C [Physics Department, Aristotle University Of Thessaloniki (Greece); Bouhova-Thacker, E; Catmore, J; Mora, L de [Department of Physics, Lancaster University (United Kingdom); Dallison, S [Particle Physics Department, CCLRC Rutherford Appleton Laboratory (United Kingdom); Derue, F [LPNHE, IN2P3 - CNRS - Universites Paris VI et Paris VII (France); Epp, B; Jussel, P [Institute for Astro- and Particle Physics, University of Innsbruck (Austria); Kaczmarska, A [Institute of Nuclear Physics, Polish Academy of Sciences (Poland); Radziewski, H v; Stahl, T [Department of Physics, University of Siegen (Germany); Reznicek, P [IPNP, Faculty of Mathematics and Physics, Charles University in Prague (Czech Republic)], E-mail: pavel.reznicek@cern.ch

    2008-07-15

    The Large Hadron Collider experiments will search for physics phenomena beyond the Standard Model. Highly sensitive tests of beauty hadrons will represent an alternative approach to this research. The analysis of complex decay chains of the beauty hadrons have to efficiently extract the detector tracks made by these reactions and reject other events in order to make sufficiently precise measurement. This places severe demands on the software used to analyze the B-physics data. The ATLAS B-physics group has written a series of tools and algorithms for performing these tasks, to be run within the ATLAS offline software framework Athena. This paper describes this analysis suite, paying particular attention to mechanisms for handling combinatorics, interfaces to secondary vertex fitting packages, B-flavor tagging tools and finally Monte Carlo true information association to pursue simulation data in process of the software validations which is an important part of the development of the physics analysis tools.

  3. Tau Physics with First Data in ATLAS

    Tau leptons, and particularly their hadronic decays, will play an important role at the LHC. The goals for early tau physics in ATLAS include collecting a sample of tau leptons from data with a purity as high as possible so that the identification efficiency of hadronically decaying tau leptons can be measured and the simulation can be tuned. Collecting data with an integrated luminosity of a few hundred pb-1 at an instantaneous luminosity of 1031 cm-2s-1 will provide a unique opportunity in ATLAS to access and understand statistically significant tau samples from Standard Model processes at relatively low transverse momenta. Identification of tau leptons in ATLAS is particularly challenging due to overwhelming background coming from QCD dijet production. Processes like the production of W and Z bosons and top quark pairs will lead to samples of a few hundred to a few thousand identified hadronic tau decays. Hadronically decaying tau leptons will then become a well understood probe for discovery physics like searches for Higgs bosons, SUSY, or exotic phenomena. Feasibility studies for analyses which can be envisaged with an integrated luminosity of 100 pb-1 to 1 fb-1 are presented.

  4. Heavy Ion Physics at the ATLAS Detector

    Takai, H; The ATLAS collaboration

    2009-01-01

    The ATLAS detector is one of the two large detectors built to carry on high pT physics  at the Large Hadron Collider. The detector is designed to perform optimally at the challenging nominal LHC machine luminosity of 10^34 cm-2s-1. ATLAS has a finely segmented electromagnetic and hadronic calorimeters covering 10 units of rapidity. The inner tracking system is composed of  sicilicon pixel detector, silicon central tracker, transition radiation tracker and a 2T solenoidal magnet, covering 5 units of rapidity. The muon spectrometer is located outside the calorimeter volume. Muon chambers and air core toroids are used to track muons of momentum larger than 4 GeV.  The ATLAS detector has a superb performance for jet physics because of its calorimeters. Simulation studies also indicate that it will be possible to tag b-jets in the heavy ion environment. Upsilon and J/Psi can be reconstructed through the di-muon decay channel. The detector is ideal for the study of global variables, namely total energy flow and ...

  5. Single Top Physics at ATLAS and CMS

    zur Nedden, Martin; The ATLAS collaboration

    2016-01-01

    A summary over the single top analyses in the ATLAS and CMS experiments is given. In this talk, the measurements of the single top cross sections in the t-channel, the Wt-channel and the s-channel are shown as the basis for a rich physics program with single top quarks. After discussing also the differential and fiducial cross sections and the V_tb properties, the single-top analyses are used as the bases for searches for physics beyond the Standard Model. Searches for Mono-tops, Flavour Changing Neutral Currents and anomalous couplings are discussed.

  6. ATLAS

    Federal Laboratory Consortium — ATLAS is a particle physics experiment at the Large Hadron Collider at CERN, the European Organization for Nuclear Research. Scientists from Brookhaven have played...

  7. Heavy Ion Physics with the ATLAS Detector

    Takai, H

    2003-01-01

    I guess the first thing that comes to people's mind is why is an experiment such as ATLAS interested in heavy ion physics. What is heavy ion physics anyway? The term heavy ion physics refers to the study of collisions between large nuclei such as lead, atomic number 208. But why would someone collide something as large and extensive as lead nuclei? When two nuclei collide there is a unique opportunity to study QCD at extreme energy densities. This said why do we think ATLAS is a good detector to study this particular physics? Among many of the simultaneous collisions that takes place when two nuclei encouter, hard scattering takes place. The unique situation now is that before hadronization partons from hard scattering may feel the surrounding media serving as an ideal probe for the matter formed in these collisions. As a consequence of this, jets may be quenched and their properties, e.g. fragmentation function or cone radius, modified when compared to proton-proton collisions. This is precisely where ATL...

  8. Searches for New Physics in Boosted Topologies at ATLAS

    Nobe, Takuya; The ATLAS collaboration

    2016-01-01

    The Large Hadron Collider started data taking in proton-proton collisions at a centre-of-mass energy of 13 TeV. Using the dataset collected with the ATLAS detector in 2015 corresponding to an integrated luminosity of 3.2 fb^{-1}, many interesting physics results are already reported. One of the most important physics programs with ATLAS is searches for new physics beyond the Standard Model at high mass region above approximately 1 TeV. The `boosted' object tagging technique is an important key of the analyses. This letter reports on the latest ATLAS search results for new physics using the boosted object tagging techniques.

  9. 4th Abel Symposium

    Friedlander, Eric; Jahren, Björn; Østvær, Paul

    2009-01-01

    The 2007 Abel Symposium took place at the University of Oslo in August 2007. The goal of the symposium was to bring together mathematicians whose research efforts have led to recent advances in algebraic geometry, algebraic K-theory, algebraic topology, and mathematical physics. A common theme of this symposium was the development of new perspectives and new constructions with a categorical flavor. As the lectures at the symposium and the papers of this volume demonstrate, these perspectives and constructions have enabled a broadening of vistas, a synergy between once-differentiated subjects, and solutions to mathematical problems both old and new.

  10. Third ATLAS Physics Workshop in Lund

    Gianotti, F

    The 3rd ATLAS Physics Workshop was held in Lund (Sweden) on September 12-16 2001. It was a very successful meeting, attended by more than 170 people and characterised by an impressive amount of work presented and discussed. The meeting was opened by the Dean of the Faculty of Mathematics and Natural Sciences, Prof. Bengt Söderström. We were all in a shocked state of mind because of the attacks the previous day on the WTC in New York. The Dean therefore asked us to observe a minute of silence to express our sorrow over the event, and sympathy to all the victims and their families. He then welcomed the ATLAS collaboration to Lund University. He explained the broad range of activities at the University, and also its history. The Faculty of Mathematics and Natural Sciences has a strong research profile and an international orientation through collaborations, visitors and many students from outside Sweden. He expressed his satisfaction with Lund University hosting our workshop, and wished us an inspiring meet...

  11. Overview of Standard Model physics at ATLAS

    Laporte, Jean-Francois; The ATLAS collaboration

    2014-01-01

    The ATLAS collaboration has carried out a large set of measurements of Standard Model processes at 7 and 8 TeV centre of mass energies of p-p collisions, covering soft QCD and hard jet and photon production processes together with W, Z and multi-boson processes. ATLAS has measured the total p-p cross section at the LHC at 7 TeV in a special LHC run with high beta* beam optics. The elastic scattering process is measured as a function of the momentum transfer t, which when extrapolated to t=0 gives the total cross section from the optical theorem. Differential measurements of inclusive, di- and tri-jet production provide stringent tests of high-order QCD predictions and provide input for determination of parton density functions. Measurements of isolated inclusive and di-photons cross sections for energetic photons test various theoretical predictions and constrain parton density functions. The nucleon strange density plays an important role for a number of physics processes, including the formation of strange ...

  12. Fuel for Fun: a cluster-randomized controlled study of cooking skills, eating behaviors, and physical activity of 4th graders and their families

    Cunningham-Sabo, Leslie; Lohse, Barbara; Smith, Stephanie; Browning, Ray; Strutz, Erin; Nigg, Claudio; Balgopal, Meena; Kelly, Kathleen; Ruder, Elizabeth

    2016-01-01

    Background Childhood obesity remains a serious concern in the United States and in many other countries. Direct experience preparing and tasting healthful foods and increasing activity during the school day are promising prevention approaches. Engaging parents and families remains an important challenge. Fuel for Fun: Cooking with Kids Plus Parents and Play is a multi-component school- and family-based intervention for 4th graders and their families intended to promote positive food and activ...

  13. W± Z and Diboson physics at ATLAS

    Edwards Nick

    2014-04-01

    Full Text Available A summary of recent results from the ATLAS experiment at the LHC in the field of W± Z and diboson physics is presented. Inclusive W± and Z production cross sections were measured di erentially and compared to different PDF sets. The ratio of the total W± and Z cross section was used to measure the strange quark density in the light quark sea. The first measurement of tau polarisation made at a hadron collider is presented. Cross section measurements for the diboson processes W±γ, Zγ, W±W−, W±Z and ZZ are presented. The diboson measurements are used to set limits on anomalous Triple Gauge Couplings; the results are consistent with the Standard Model values.

  14. Physics with Tau Lepton Final States in ATLAS

    Pingel Almut M.

    2013-05-01

    Full Text Available The ATLAS detector records collisions from two high-energetic proton beams circulating in the LHC. An integral part of the ATLAS physics program are analyses with tau leptons in the final state. Here an overview is given over the studies done in ATLAS with hadronically-decaying final state tau leptons: Standard Model cross-section measurements of Z → ττ, W → τν and tt̅ → bb̅ e/μν τhadν; τ polarization measurements in W → τν decays; Higgs searches and various searches for physics beyond the Standard Model.

  15. Impact and Amount of Academic Self-efficacy and Stress on the Mental and Physical Well-Being of Students Competing in the 4th Olympiad of Iranian Universities of Medical Sciences

    Leila Vahedi; Negar TaleschianTabrizi; Kasra Kolahdouzan; Mohhamad Chavoshi; Babak Rad; Sara Soltani; Morteza Ghojazadeh

    2014-01-01

    Introduction: Studying mental and physical health and their determinants is an important issue, especially among future health providers.Methods: This is a sectional-analytical study whose target population was students who had participated in the 4th National Olympiad of Medical Sciences Universities in Tabriz, Iran, held in February 4-7 2013.Web-based designed questionnaires were sent to all 328 participating students’ emails containing our questionnaires that were designed as web-based thr...

  16. New physics searches in heavy flavours in ATLAS

    Precision determinations of the flavour sector allow the search for indirect new physics signatures. At the forefront of these studies are the determinations of interference of new physics with known ΔF = 1 and ΔF = 2 processes. The ATLAS collaboration explores this area with competitive results measuring the CP violating phase φs from Bs0 → J/ψφ decays and investigating rare B decays with dileptons in the final state with data collected at the Large Hadron Collider. In this paper, the latest ATLAS results relevant for new physics searches in the heavy flavour sector will be discussed. (authors)

  17. 4th Machining Innovations Conference

    2014-01-01

    This contributed volume contains the research results presented at the 4th Machining Innovations Conference, Hannover, September 2013. The topic of the conference are new production technologies in aerospace industry and the focus is on energy efficient machine tools as well as sustainable process planning. The target audience primarily comprises researchers and experts in the field but the book may also be beneficial for graduate students.

  18. The 4th concept detector

    John Hauptman

    2007-12-01

    The 4th concept detector consists of four detector subsystems, a small-pixel vertex detector, a high-resolution TPC, a new multiple-readout fiber calorimeter and a new dual-solenoid iron-free muon system. We discuss the design of a comprehensive facility that measures and identifies all partons of the standard model, including hadronic → and → decays, with high precision and high e±ciency. We emphasis here the calorimeter and muon systems.

  19. Forward and Diffractive Physics with Early ATLAS data

    Monk, JW

    2009-01-01

    Proton-proton collisions at the Large Hadron Collider will soon commence and measurements of diffractive processes may be some of the first physics results produced. These proceedings outline some of the plans for early measurements of diffractive physics and forward jets by the ATLAS collaboration.

  20. ATLAS Future Plans: Upgrade and the Physics with High Luminosity

    Rajagopalan S.

    2013-05-01

    Full Text Available The ATLAS experiment is planning a series of detector upgrades to cope with the planned increases in instantaneous luminosity and multiple interactions per crossing to maintain its physics capabilities. During the coming decade, the Large Hadron Collider will collide protons on protons at a center of mass energy up to 14 TeV with luminosities steadily increasing in a phased approach to over 5 × 1034 cm−2s−1. The resulting large data sets will significantly enhance the physics reach of the ATLAS detector building on the recent discovery of the Higgs-like boson. The planned detector upgrades being designed to cope with the increasing luminosity and its impact on the ATLAS physics program will be discussed.

  1. Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics

    Aad, G.; Abat, E.; Abbott, B.; Abdallah, J.; Abdelalim, A.A.; Abdesselam, A.; Abdinov, O.; Abi, B.; Abolins, M.; Abramowicz, H.; Acharya, Bobby Samir; Adams, D.L.; Addy, T.N.; Adorisio, C.; Adragna, P.; Adye, T.; Aguilar-Saavedra, J.A.; Aharrouche, M.; Ahlen, S.P.; Ahles, F.; Ahmad, A.; /SUNY, Albany /Alberta U. /Ankara U. /Annecy, LAPP /Argonne /Arizona U. /Texas U., Arlington /Athens U. /Natl. Tech. U., Athens /Baku, Inst. Phys. /Barcelona, IFAE /Belgrade U. /VINCA Inst. Nucl. Sci., Belgrade /Bergen U. /LBL, Berkeley /Humboldt U., Berlin /Bern U., LHEP /Birmingham U. /Bogazici U. /INFN, Bologna /Bologna U.

    2011-11-28

    The Large Hadron Collider (LHC) at CERN promises a major step forward in the understanding of the fundamental nature of matter. The ATLAS experiment is a general-purpose detector for the LHC, whose design was guided by the need to accommodate the wide spectrum of possible physics signatures. The major remit of the ATLAS experiment is the exploration of the TeV mass scale where groundbreaking discoveries are expected. In the focus are the investigation of the electroweak symmetry breaking and linked to this the search for the Higgs boson as well as the search for Physics beyond the Standard Model. In this report a detailed examination of the expected performance of the ATLAS detector is provided, with a major aim being to investigate the experimental sensitivity to a wide range of measurements and potential observations of new physical processes. An earlier summary of the expected capabilities of ATLAS was compiled in 1999 [1]. A survey of physics capabilities of the CMS detector was published in [2]. The design of the ATLAS detector has now been finalised, and its construction and installation have been completed [3]. An extensive test-beam programme was undertaken. Furthermore, the simulation and reconstruction software code and frameworks have been completely rewritten. Revisions incorporated reflect improved detector modelling as well as major technical changes to the software technology. Greatly improved understanding of calibration and alignment techniques, and their practical impact on performance, is now in place. The studies reported here are based on full simulations of the ATLAS detector response. A variety of event generators were employed. The simulation and reconstruction of these large event samples thus provided an important operational test of the new ATLAS software system. In addition, the processing was distributed world-wide over the ATLAS Grid facilities and hence provided an important test of the ATLAS computing system - this is the origin of

  2. The heavy-ion physics programme with the ATLAS detector

    The CERN LHC collider will operate with lead ions at √s of 5.5 TeV/nucleon. The ATLAS detector, designed to study high-pT physics in pp mode of the LHC, has potential to study ultrarelativistic heavy-ion collisions in a full range of observables characterizing the extremely dense matter and the formation of a quark-gluon plasma. The ATLAS physics programme includes global event measurements (particle multiplicities, transverse momentum), suppression of heavy-quarkonia production, jet quenching and study of ultraperipheral collisions

  3. Diffraction and Forward Physics in ATLAS: results and perspectives

    Bruschi, M; The ATLAS collaboration

    2014-01-01

    The present and future potential of ATLAS for diffraction and forward physics is presented. As recent results the rapidity gap cross section and elastic and total pp cross sections are reported. The phase 1 upgrade project AFP is presented and it is shown how it will complement the ALFA acceptance for diffractive physics in measurements taken with beta*=90m. Moreover, the AFP detector will guarantee good acceptance on diffractive events also with normal running conditions optics allowing not only to improve the ATLAS detector performances, but also being fundamental for potential discoveries (for instance, extra dimensions) in case the high luminosity program will be feasible.

  4. Diffraction and Forward Physics in ATLAS: results and perspectives

    Bruschi, Marco; The ATLAS collaboration

    2015-01-01

    The present and future potential of ATLAS for diffraction and forward physics is presented. As recent results the rapidity gap cross section and elastic and total pp cross sections are reported. The upgrade project AFP is presented and it is shown how it will complement the ALFA acceptance for diffractive physics in measurements taken with \\(\\beta^{*}\\)=90 m LHC\\ beam optics. Moreover, the AFP detector will guarantee good acceptance on diffractive events also with normal running conditions optics allowing not only to improve the ATLAS detector performances, but also being fundamental for potential discoveries (for instance, extra dimensions) in case the high luminosity program will be feasible.

  5. The physics analysis tools project for the ATLAS experiment

    The Large Hadron Collider is expected to start colliding proton beams in 2009. The enormous amount of data produced by the ATLAS experiment (≅1 PB per year) will be used in searches for the Higgs boson and Physics beyond the standard model. In order to meet this challenge, a suite of common Physics Analysis Tools has been developed as part of the Physics Analysis software project. These tools run within the ATLAS software framework, ATHENA, covering a wide range of applications. There are tools responsible for event selection based on analysed data and detector quality information, tools responsible for specific physics analysis operations including data quality monitoring and physics validation, and complete analysis tool-kits (frameworks) with the goal to aid the physicist to perform his analysis hiding the details of the ATHENA framework. (authors)

  6. ATLAS Collaboration Reaction to 2013 Physics Nobel Prize Announcement

    Abdeslam Hoummada

    2013-01-01

    Physicists from ATLAS took a brief time out from their collaboration week in Marrakech, Morocco to watch the announcement of the Nobel Prize in Physics for 2013. To their delight, it was awarded to Francois Englert and Peter Higgs for their pioneering work on the electroweak-symmetry-breaking mechanism in 1964.

  7. Promoting physical activity for psychosocial well-being among school-aged children and youth (4.th-6.th grade): Applying the RE-AIM evaluation framework

    Smedegaard, Søren

    2016-01-01

    best available research evidence with local context and experiences, adaptation, implementation and evaluation of the intervention. The RE-AIM model, initially developed to evaluate public health interventions, is adapted to the present intervention program on physical activity and well......Purpose This study focuses on the stepwise development of a multicomponent school-based physical activity intervention Move for Well-being in Schools using the RE-AIM framework (Glasgow et al. 1999, Glasgow & Emmons 2007). The framework is applied to guide integrative use of both process and...... corresponded to what was intended. Conclusions Project results will enable us to point out new and evidence-informed ways to design, pilot, implement and evaluate multicomponent physical activity interventions in the school setting. In this way we contribute to ongoing discussions on how best to enhance well...

  8. Status of the ATLAS Forward Physics (AFP) project

    Chytka, Ladislav; Atlas Collaboration

    2013-04-01

    The ATLAS Forward Physics (AFP) project plans to add a set of detectors - silicon 3D pixel tracking detectors and QUARTIC time of flight detectors - in the forward region of the ATLAS experiment at the LHC. The AFP detectors will be placed around 210 m from the interaction point and are meant to detect protons produced at small angles. The detectors are to be housed in the so called Hamburg beam pipe - a movable beam pipe allowing horizontal movement of the detectors. The AFP is currently under approval with possible installation in 2014/15.

  9. Status of the ATLAS Forward Physics (AFP) Project

    Chytka, L; The ATLAS collaboration

    2012-01-01

    The ATLAS Forward Physics (AFP) project plans to add a set of detectors --- silicon 3D pixel tracking detectors and QUARTIC time of flight detectors --- in the forward region of the ATLAS experiment at the LHC. The AFP detectors will be placed around 210 m from the interaction point and are meant to detect protons produced at small angles. The detectors are to be housed in the so called Hamburg beam pipe --- a movable beam pipe allowing horizontal movement of the detectors. The AFP is currently under approval with possible installation in 2014/15.

  10. Results and Perspectives in Forward Physics with ATLAS

    Giacobbe, Benedetto; The ATLAS collaboration

    2015-01-01

    A review of the ATLAS forward physics results is given with particular emphasis on the aspects of relevance for the cosmic rays community. These include proton-proton cross section measurements at $\\sqrt{s} = 7$~TeV, diffractive physics studies using rapidity gaps, measurements of energy flow as a function of pseudorapidity, and the first cross section measurement performed in the recently started Run 2 at $\\sqrt{s} = 13$~TeV. The ATLAS future perspectives will also be discussed, focused on the phase 1 upgrade project AFP, underlying its complementarity with the existing ALFA detector in terms of acceptance for diffractive processes, and its potential for a wide forward physics program both at low and high luminosity.

  11. DEGRO`98. 4th German congress on radiation oncology, biology, physics. Book of abstracts; DEGRO`98. 4. Deutscher Kongress fuer Radioonkologie, Strahlenbiologie und Medizinische Physik. Abstractband

    Anon.

    1998-11-01

    The special issue contains all abstracts of the congress papers and compact information on the subjects of poster sessions and refresher courses. The themes of the technical and poster sessions are: Radiation physics of brachytherapy, CT-simulation and dosimetry, positioning and verification, 3D planning, quality assurance, irradiation planning and imaging, portal imaging; radiobiology in the context of interactions in combined chemotherapy and radiotherapy, cytokine and fibrosis, radiosensitivity and repair, apoptosis, oxygen and radiation effects; CNS; Amifostine as a protective agent in radiotherapy and chemotherapy: breast cancer; upper gastro-intestinal tract; anti-inflammation and proliferation irradiation; stereotaxy; palliative treatments; head and neck cancer, irradiation techniques; hyperthermia; rectal carcinoma; urogenital tract; malignant lymphoma; eyes and orbita; cervical and corpus carcinoma; non-cat-cell bronchial carcinoma. (MG/CB) [Deutsch] Der vorliegende Sonderband legt alle Abstracts der Tagung sowie die Inhaltsangaben der Poster-Sessions und der Refresher-Kurse vor. Die Themen der Vortraege und Poster waren wie folgt: Strahlenphysik der Brachytherapie, der CT-Simulation und Dosimetrie, der Lagerung und Verifikation, der 3D-Planung, der Qualitaetssicherung, der Bestrahlungsplanung und Bildgebung und des Portal Imagings; Strahlenbiologie in Bezug auf Interaktion von Chemo- und Radiotherapie, Zytokine und Fibrose, Strahlenempfindlichkeit und Reparatur, Apoptose, Sauerstoff und Strahlenwirkung; ZNS; Amifostin als Protektor in Radio- und Chemotherapie: Mammakarzinom; oberer Gastrointestinaltrakt; entzuendungs- und antiproliferative Bestrahlung; Stereotaxie; Palliativmedizin; Kopf-Hals-Bereich; Bestrahlungstechniken; Hyperthermie; Rektum- und Analkarzinom; Urogenitaltrakt; maligne Lymphome; Auge und Orbita; Zervix- und Korpuskarzinom; nichtkleinzelliges Bronchialkarzinom. (MG)

  12. Detector development for ATLAS and supersymmetry physics studies

    The Large Hadron Collider at CERN promises to offer an exciting opportunity to study particle physics at energies of up to 14 TeV. In order to exploit the potential of the LHC, the ATLAS collaboration intends to build a complex general-purpose detector. The detector must have the ability to study known physics to a higher accuracy as well as be capable of studying as yet unknown physical phenomenon. This thesis is concerned with the development of certain key components of the ATLAS inner detector as well as the ability of the detector to study certain aspects of Supersymmetry. The ATLAS Semi-Conductor Tracker is an enormously complex sub-detector with over six million channels. A scheme using pulse height modulation to transmit clock and control information to the detector is developed. Furthermore, in order to facilitate the readout of these channels as efficiently as possible with a bunch crossing frequency of 40 MHz three different readout architectures were investigated by the ATLAS collaboration - analogue, digital and binary. Work in this thesis contributed to the decision by ATLAS to adopt the binary readout architecture after it was successfully tested in test-beam and bench-top studies. The physics studies to be performed at ATLAS impose stringent requirements on the precision with which the various trackers of the detector must measure the position of track points created by charged particles as they traverse the detector. The tracking resolutions achievable with these detectors are dependent on, among other things, the precision with which positions of detector elements are known during data taking. An optical metrology system known as frequency scanning interferometry (FSI) is shown in this thesis to be capable of providing real time detector alignment information. Finally, B-quark tagging is expected to play a major role in studying a large fraction of interesting physics signatures at the LHC. This thesis studies the degradation to b

  13. ATLAS

    Akhnazarov, V; Canepa, A; Bremer, J; Burckhart, H; Cattai, A; Voss, R; Hervas, L; Kaplon, J; Nessi, M; Werner, P; Ten kate, H; Tyrvainen, H; Vandelli, W; Krasznahorkay, A; Gray, H; Alvarez gonzalez, B; Eifert, T F; Rolando, G; Oide, H; Barak, L; Glatzer, J; Backhaus, M; Schaefer, D M; Maciejewski, J P; Milic, A; Jin, S; Von torne, E; Limbach, C; Medinnis, M J; Gregor, I; Levonian, S; Schmitt, S; Waananen, A; Monnier, E; Muanza, S G; Pralavorio, P; Talby, M; Tiouchichine, E; Tocut, V M; Rybkin, G; Wang, S; Lacour, D; Laforge, B; Ocariz, J H; Bertoli, W; Malaescu, B; Sbarra, C; Yamamoto, A; Sasaki, O; Koriki, T; Hara, K; Da silva gomes, A; Carvalho maneira, J; Marcalo da palma, A; Chekulaev, S; Tikhomirov, V; Snesarev, A; Buzykaev, A; Maslennikov, A; Peleganchuk, S; Sukharev, A; Kaplan, B E; Swiatlowski, M J; Nef, P D; Schnoor, U; Oakham, G F; Ueno, R; Orr, R S; Abouzeid, O; Haug, S; Peng, H; Kus, V; Vitek, M; Temming, K K; Dang, N P; Meier, K; Schultz-coulon, H; Geisler, M P; Sander, H; Schaefer, U; Ellinghaus, F; Rieke, S; Nussbaumer, A; Liu, Y; Richter, R; Kortner, S; Fernandez-bosman, M; Ullan comes, M; Espinal curull, J; Chiriotti alvarez, S; Caubet serrabou, M; Valladolid gallego, E; Kaci, M; Carrasco vela, N; Lancon, E C; Besson, N E; Gautard, V; Bracinik, J; Bartsch, V C; Potter, C J; Lester, C G; Moeller, V A; Rosten, J; Crooks, D; Mathieson, K; Houston, S C; Wright, M; Jones, T W; Harris, O B; Byatt, T J; Dobson, E; Hodgson, P; Hodgkinson, M C; Dris, M; Karakostas, K; Ntekas, K; Oren, D; Duchovni, E; Etzion, E; Oren, Y; Ferrer, L M; Testa, M; Doria, A; Merola, L; Sekhniaidze, G; Giordano, R; Ricciardi, S; Milazzo, A; Falciano, S; De pedis, D; Dionisi, C; Veneziano, S; Cardarelli, R; Verzegnassi, C; Soualah, R; Ochi, A; Ohshima, T; Kishiki, S; Linde, F L; Vreeswijk, M; Werneke, P; Muijs, A; Vankov, P H; Jansweijer, P P M; Dale, O; Lund, E; Bruckman de renstrom, P; Dabrowski, W; Adamek, J D; Wolters, H; Micu, L; Pantea, D; Tudorache, V; Mjoernmark, J; Klimek, P J; Ferrari, A; Abdinov, O; Akhoundov, A; Hashimov, R; Shelkov, G; Khubua, J; Ladygin, E; Lazarev, A; Glagolev, V; Dedovich, D; Lykasov, G; Zhemchugov, A; Zolnikov, Y; Ryabenko, M; Sivoklokov, S; Vasilyev, I; Shalimov, A; Lobanov, M; Paramoshkina, E; Mosidze, M; Bingul, A; Nodulman, L J; Guarino, V J; Yoshida, R; Drake, G R; Calafiura, P; Haber, C; Quarrie, D R; Alonso, J R; Anderson, C; Evans, H; Lammers, S W; Baubock, M; Anderson, K; Petti, R; Suhr, C A; Linnemann, J T; Richards, R A; Tollefson, K A; Holzbauer, J L; Stoker, D P; Pier, S; Nelson, A J; Isakov, V; Martin, A J; Adelman, J A; Paganini, M; Gutierrez, P; Snow, J M; Pearson, B L; Cleland, W E; Savinov, V; Wong, W; Goodson, J J; Li, H; Lacey, R A; Gordeev, A; Gordon, H; Lanni, F; Nevski, P; Rescia, S; Kierstead, J A; Liu, Z; Yu, W W H; Bensinger, J; Hashemi, K S; Bogavac, D; Cindro, V; Hoeferkamp, M R; Coelli, S; Iodice, M; Piegaia, R N; Alonso, F; Wahlberg, H P; Barberio, E L; Limosani, A; Rodd, N L; Jennens, D T; Hill, E C; Pospisil, S; 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Wickens, F J; Martin, V J; Jackson, J N; Prichard, P; Kretzschmar, J; Martin, A J; Walker, C J; Potter, K M; Kourkoumelis, C; Tzamarias, S; Houiris, A G; Iliadis, D; Fanti, M; Bertolucci, F; Maleev, V; Sultanov, S; Rosenberg, E I; Krumnack, N E; Bieganek, C; Diehl, E B; Mc kee, S P; Eppig, A P; Harper, D R; Liu, C; Schwarz, T A; Mazor, B; Looper, K A; Wiedenmann, W; Huang, P; Stahlman, J M; Battaglia, M; Nielsen, J A; Zhao, T; Khanov, A; Kaushik, V S; Vichou, E; Liss, A M; Gemme, C; Morettini, P; Parodi, F; Passaggio, S; Rossi, L; Kuzhir, P; Ignatenko, A; Ferrari, R; Spairani, M; Pianori, E; Sekula, S J; Firan, A I; Cao, T; Hetherly, J W; Gouighri, M; Vassilakopoulos, V; Long, M C; Shimojima, M; Sawyer, L H; Brummett, R E; Losada, M A; Schorlemmer, A L; Mantoani, M; Bawa, H S; Mornacchi, G; Nicquevert, B; Palestini, S; Stapnes, S; Veness, R; Kotamaki, M J; Sorde, C; Iengo, P; Campana, S; Goossens, L; Zajacova, Z; Pribyl, L; Poveda torres, J; Marzin, A; Conti, G; Carrillo montoya, G D; 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Vasilyeva, L; Speransky, M; Smirnov, S; Antonov, A; Bulekov, O; Tikhonov, Y; Sargsyan, L; Vardanyan, G; Budick, B; Kocian, M L; Luitz, S; Young, C C; Grenier, P J; Kelsey, M; Black, J E; Kneringer, E; Jussel, P; Horton, A J; Beaudry, J; Chandra, A; Ereditato, A; Topfel, C M; Mathieu, R; Bucci, F; Muenstermann, D; White, R M; He, M; Urban, J; Straka, M; Vrba, V; Schumacher, M; Parzefall, U; Mahboubi, K; Sommer, P O; Koepke, L H; Bethke, S; Moser, H; Wiesmann, M; Walkowiak, W A; Fleck, I J; Martinez-perez, M; Sanchez sanchez, C A; Jorgensen roca, S; Accion garcia, E; Sainz ruiz, C A; Valls ferrer, J A; Amoros vicente, G; Vives torrescasana, R; Ouraou, A; Formica, A; Hassani, S; Watson, M F; Cottin buracchio, G F; Bussey, P J; Saxon, D; Ferrando, J E; Collins-tooth, C L; Hall, D C; Cuhadar donszelmann, T; Dawson, I; Duxfield, R; Argyropoulos, T; Brodet, E; Livneh, R; Shougaev, K; Reinherz, E I; Guttman, N; Beretta, M M; Vilucchi, E; Aloisio, A; Patricelli, S; Caprio, M; Cevenini, F; De vecchi, C; 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Shupe, M A; Wolin, S; Oshita, H; Gaudio, G; Das, R; Konig, A C; Croft, V A; Harvey, A; Maaroufi, F; Melo, I; Greenwood jr, Z D; Shabalina, E; Mchedlidze, G; Drechsler, E; Rieger, J K; Blackston, M; Colombo, T

    2002-01-01

    % ATLAS \\\\ \\\\ ATLAS is a general-purpose experiment for recording proton-proton collisions at LHC. The ATLAS collaboration consists of 144 participating institutions (June 1998) with more than 1750~physicists and engineers (700 from non-Member States). The detector design has been optimized to cover the largest possible range of LHC physics: searches for Higgs bosons and alternative schemes for the spontaneous symmetry-breaking mechanism; searches for supersymmetric particles, new gauge bosons, leptoquarks, and quark and lepton compositeness indicating extensions to the Standard Model and new physics beyond it; studies of the origin of CP violation via high-precision measurements of CP-violating B-decays; high-precision measurements of the third quark family such as the top-quark mass and decay properties, rare decays of B-hadrons, spectroscopy of rare B-hadrons, and $ B ^0 _{s} $-mixing. \\\\ \\\\The ATLAS dectector, shown in the Figure includes an inner tracking detector inside a 2~T~solenoid providing an axial...

  14. Electroweak Physics (diboson production) measurements with ATLAS

    Bachas, K.; Atlas Collaboration

    2016-07-01

    This paper is intended to give an overview of the ATLAS results on the production cross sections of gauge boson pairs using data from pp collisions at √{{s}} = 7 TeV for W γ, Z γ, W± W±, ZZ, W± Z and WV , where V = W± or Z decaying hadronically and √{{s}} = 8 TeV for ZZ, W± W±, W± Z and W± W± at the LHC at CERN. The cross sections are found to be in agreement with the expectations from the Standard Model within the estimated uncertainties. The production cross section measurements also allow for studies of anomalous triple and quartic gauge couplings for which 95% confidence limits are set.

  15. Searches for New Physics in Unconventional Signatures at ATLAS

    Otono, Hidetoshi; The ATLAS collaboration

    2016-01-01

    Various physics models predict new long-lived particles to be generated at the Large Hadron Collider, which leave unconventional signatures in the detectors. In order to maximise our discovery potential for new physics, the ATLAS experiment has developed novel analysis techniques for the long-lived particles. In these proceedings, a new result with $pp$ collisions at $\\sqrt s = 13~\\rm{TeV}$ in LHC Run 2 is presented, which exploits the ionisation energy loss measurements in the Pixel subsystem in the ATLAS detector to search for a massive charged long-lived particle with a velocity significantly below the speed of light. Several other characteristic searches performed with $pp$ collisions at $\\sqrt s = 7 - 8~\\rm{TeV}$ in LHC Run 1 are briefly summarised.

  16. TopView - ATLAS top physics analysis package

    Shibata, A

    2007-01-01

    TopView is a common analysis package which is widely used in the ATLAS top physics working group. The package is fully based on the official ATLAS software Athena and EventView and playing a central role in the collaborative analysis model. It is a functional package which accounts for a broad range issues in implementing physics analysis. As well as being a modular framework suitable as a common workplace for collaborators, TopView implements numerous analysis tools including a complete top-antitop reconstruction and single top reconstruction. The package is currently used to produce common ntuple from Monte Carlo production and future use cases are under rapid development. In this paper, the design and ideas behind TopView and the performance of the analyses implemented in the package are presented with detailed documentation of the contents and instruction for using the package.

  17. Expected performance of the ATLAS experiment detector, trigger and physics

    Aad, G; Abbott, B; Abdallah, J; Abdelalim, A A; Abdesselam, A; Abdinov, O; Abi, B; Abolins, M; Abramowicz, H; Acharya, B S; Adams, D L; Addy, T N; Adorisio, C; Adragna, P; Adye, T; Aguilar-Saavedra, J A; Aharrouche, M; Ahlen, S P; Ahles, F; Ahmad, A; Ahmed, H; Aielli, G; Akdogan, T; Åkesson, T P A; Akimoto, G; Alam, M A; Alam, S M; Albert, J; Albrand, S; Aleksa, M; Aleksandrov, I N; Alessandria, F; Alexa, C; Alexander, G; Alexandre, G; Alexopoulos, T; Alhroob, M; Alimonti, G; Alison, J; Aliyev, M; Allport, P P; Allwood-Spiers, S E; Aloisio, A; Alon, R; Alonso, A; Alonso, J; Alviggi, M G; Amako, K; Amaral, P; Amelung, C; Ammosov, V V; Amorim, A; Amorós, G; Amram, N; Anastopoulos, C; Anders, C F; Anderson, K J; Andreazza, A; Andrei, V; Andrieux, M L; Anduaga, X S; Anghinolfi, F; Antonaki, A; Antonelli, M; Antonelli, S; Antunovic, B; Anulli, F A; Arabidze, G; Aracena, I; Arai, Y; Arce, A T H; Archambault, J P; Arfaoui, S; Arguin, J F; Argyropoulos, T; Arik, E; Arik, M; Armbruster, A J; Arnaez, O; Arnault, C; Artamonov, A; Arutinov, D; Asai, M; Asai, S; Ask, S; Åsman, B; Asner, D; Asquith, L; Assamagan, K; Astbury, A; Astvatsatourov, A; Atkinson, T; Atoian, G; Auerbach, B; Auge, E; Augsten, K; Aurousseau, M A; Austin, N; Avolio, G; Avramidou, R; Axen, A; Ay, C; Azuelos, G; Azuma, Y; Baak, M A; Baccaglioni, G; Bacci, C; Bachacou, H; Bachas, K; Backes, M; Badescu, E; Bagnaia, P; Bai, Y; Bailey, D C; Baines, J T; Baker, O K; Baltasar Dos Santos Pedrosa, F; Banas, E; Banerjee, S; Banfi, D; Bangert, A; Bansal, V; Baranov, S P; Baranov, S; Barashkou, A; Barber, T B; Barberio, E L; Barberis, D; Barbero, M B; Bardin, D Y; Barillari, T; Barisonzi, M; Barklow, T; Barlow, N B; Barnett, B M; Barnett, R M; Baron, S; Baroncelli, A; Barr, A J; Barreiro, F; Barreiro Guimãres da Costa, J; Barrillon, P; Barros, N; Bartoldus, R; Bartsch, D; Bastos, J; Bates, R L; Batley, J R; Battaglia, A; Battistin, M; Bauer, F; Bazalova, M; Beare, B; Beauchemin, P H; Beccherle, R B; Becerici, N; Bechtle, P; Beck, G A; Beck, H P; Beckingham, M; Becks, K H; Bedajanek, I; Beddall, A J; Beddall, A; Bednár, P; Bednyakov, V A; Bee, C; Begel, M; BeharHarpaz, S; Behera, P K; Beimforde, M; Belanger-Champagne, C; Bell, P J; Bell, W H; Bella, G; Bellagamba, L; Bellina, F; Bellomo, M; Belloni, A; Belotskiy, K; Beltramello, O; Ben Ami, S; Benary, O; Benchekroun, D; Bendel, M; Benedict, B H; Benekos, N; Benhammou, Y; Benincasa, G P; Benjamin, D P; Benoit, M; Bensinger, J R; Benslama, K; Bentvelsen, S; Beretta, M; Berge, D; Bergeaas Kuutmann, E; Berger, N; Berghaus, F; Berglund, E; Beringer, J; Bernardet, K; Bernat, P; Bernhard, R; Bernius, C; Berry, T; Bertin, A; Besson, N; Bethke, S; Bianchi, R M; Bianco, M; Biebel, O; Biesiada, J; Biglietti, M; Bilokon, H; Binet, S; Bingul, A; Bini, C; Biscarat, C; Bischofberger, M; Bitenc, U; Black, K M; Blair, R E; Blanchot, G; Blocker, C; Blocki, J; Blondel, A; Blum, W; Blumenschein, U; Boaretto, C; Bobbink, G J; Bocci, A; Bodine, B; Boek, J; Boelaert, N; Böser, S; Bogaerts, J A; Bogouch, A; Bohm, C; Bohm, J; Boisvert, V; Bold, T; Boldea, V; Bondarenko, V G; Bondioli, M; Boonekamp, M; Booth, C N; Booth, P S L; Booth, J R A; Borisov, A; Borissov, G; Borjanovic, I; Borroni, S; Bos, K; Boscherini, D; Bosman, M; Bosteels, M; Bouchami, J; Boudreau, J; Bouhova-Thacker, E V; Boulahouache, C; Bourdarios, C; Boyd, J; Boyko, I R; Bracinik, J; Braem, A; Branchini, P; Brandenburg, G W; Brandt, A; Brandt, O; Bratzler, U; Brau, J E; Braun, H M; Brelier, B; Bremer, J; Brenner, R; Bressler, S; Breton, D; Brett, N D; Britton, D; Brochu, F M; Brock, I; Brock, R; Brodet, E; Broggi, F; Brooijmans, G; Brooks, W K; Brubaker, E; Bruckmande Renstrom, P A; Bruncko, D; Bruneliere, R; Brunet, S; Bruni, A; Bruni, G; Bruschi, M; Buanes, T; Bucci, F B; Buchholz, P; Buckley, A G; Budagov, I A; Büscher, V; Bugge, L; Bujor, F; Bulekov, O; Bunse, M; Buran, T; Burckhart, H; Burdin, S; Burke, S; Busato, E; Bussey, P; Buszello, C P; Butin, F; Butler, B; Butler, J M; Buttar, C M; Butterworth, J M; Byatt, T; Caballero-Bejar, J; CabreraUrbán, S; Caforio, D; Cakir, O; Calafiura, P; Calderini, G; Calkins, R; Caloba, L P; Caloi, R; Calvet, D; Camarri, P; Cambiaghi, M; Cameron, D; Campabadal Segura, F; Campana, S; Campanelli, M; Canale, V; Cantero, J; Capeans Garrido, M D M; Caprini, I; Caprini, M; Capua, M; Caputo, R; Caracinha, D; Caramarcu, C; Cardarelli, R; Carli, T; Carlino, G; Carminati, L; Caron, B; Caron, S; Carron Montero, S; Carter, A A; Carter, J R; Carvalho, J; Casadei, D; Casado, M P; Cascella, M; Caso, C; Castaneda Hernadez, A M; Castaneda Miranda, E; Castillo Gimenez, V; Castro, N; Castro Nunes Fiolhais, M; Cataldi, G; Catinaccio, A; Catmore, J R; Cattai, A; Cattani, G C; Caughron, S; Cauz, D; Cavalleri, P; Cavalli, D; Cavalli-Sforza, M; Cavasinni, V; Ceradini, F; Cerqueira, A S; Cerri, A

    2009-01-01

    A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together with the performance of b-tagging and the trigger. The physics potential for a variety of interesting physics processes, within the Standard Model and beyond, is examined. The study comprises a series of notes based on simulations of the detector and physics processes, with particular emphasis given to the data expected from the first years of operation of the LHC at CERN.

  18. Single Top Physics at ATLAS and CMS

    zur Nedden, Martin; The ATLAS collaboration

    2016-01-01

    The measurement of single-top production opens up a wide field for tests of the Standard Model (SM) and searches for phenomena beyond as e.g. Flavour Changing Neutral Currents, anomalous couplings, top-quark polarisation or monotop production. In contrast to the top-pair production, top quarks are produced in electro-weak interactions and provides insights into the properties of the $Wtb$ vertex. Making use of a luminosity of 20.3 fb$^{-1}$ at $\\sqrt{s}$ = 8 TeV and of 3.3 fb$^{-1}$ at $\\sqrt{s}$ = 13 TeV the ATLAS and CMS experiments provided measurements for all single top channels predicted by the SM. The well established observation of the $t$-channel allowed for precise measurements as differential of fiducial cross sections. The production cross section of a single top quark in association with a $W$-boson could be measured at good precision. For the first time, also the $s$-channel production cross section could be measured making use the new, sophisticated matrix element method. Based on the precise S...

  19. Beyond the standard model Higgs physics using the ATLAS experiment

    With the discovery of a Higgs boson that has properties consistent with the Standard Model at the LHC, searches for additional Higgs bosons due to beyond the Standard Model physics, along with potential property measurements not consistent with the Standard Model, become more interesting and relevant. This article summarises the current searches for such new Higgs bosons performed with the ATLAS detector, using proton-proton collisions at centre of mass energies of 7 and 8 TeV at LHC. No significant deviations from the predictions of the Standard Model are observed in any search channel and hence limits on physics beyond the Standard Model are calculated. (authors)

  20. Searches for Exotic Physics at the ATLAS Detector

    Thompson, E N; The ATLAS collaboration

    2011-01-01

    Searches have begun at the ATLAS Detector for physics beyond the Standard Model (BSM) with ~40pb-1 of integrated luminosity. After ruling out the presence of new physics in our data, limits on possible BSM signatures have been set, many of which have already excluded more phase space than previous experiments. This talk will review recent limits obtained on various BSM models, including excited quarks, axigluons, contact interactions, quantum black holes, heavy gauge bosons (W', Z'), universal extra dimensions and massive long-lived highly-ionizing particles.

  1. The charmonium and beauty physics programme in ATLAS

    Smizanska, M. [Lancaster University (United Kingdom)

    2011-01-15

    The first J/{psi}{yields}{mu}{sup +}{mu}{sup -} signal in the ATLAS detector, from 7 TeV proton-proton collisions in the LHC, with integrated luminosity of 6.4 nb{sup -1} was extracted and analysed. The reconstructed invariant mass agrees with the PDG value within statistical uncertainties, whilst the peak width is compatible with Monte Carlo expectations. The kinematic properties of the J/{psi} candidates are presented. Two examples of future B-physics measurements are given. First, lifetime determinations are shown, in preparation for future high precision CPV measurements, second, the expected ATLAS sensitivity for rare decay B{sub s}{yields}{mu}{sup +}{mu}{sup -} is reported.

  2. The Leap into 4th Grade

    Anderson, Mike

    2011-01-01

    Fourth grade is a pivotal year, in which students commonly face increased academic demands. According to Anderson, teachers can help students make a smooth transition to 4th grade by introducing these new challenges in ways that are in line with 4th graders' common developmental characteristics: incredible energy and emotion, industriousness and…

  3. Exotics Searches for New Physics with the ATLAS Detector

    Abdallah, Jalal

    2011-01-01

    This conference report presents a compilation of some of the latest results on the Exotics searches in ATLAS. We present the results based on first data collected with the ATLAS detector at a center-of-mass energy of 7 TeV produced by the LHC, and discuss current sensitivities and future prospects. We summarize the analysis of the monojet and interpret the results in the context of large extra dimension models. We also summarize the analysis of the dijet angular distributions and invariant mass. Studies of high energy leptons and photons at the Large Hadron Collider is one of the most direct and sensitive ways to search for new physics phenomena. The results are interpreted in terms of limits on the heavy gauge bosons and the Rundall Sundrum graviton. We summarize the analysis of top and top-like final states in pp collision data recorded with the ATLAS detector. The data are confronted with Standard Model predictions with the goal of searching for new phenomena: new resonances, contact interactions and gravi...

  4. Real time physics analysis with the ATLAS tau trigger system

    The scope of the ATLAS tau trigger system at the LHC is most ambitious. It aims at reconstructing in real time, a matter of seconds, a detailed picture of the high energy proton proton collisions at the LHC. Such system is mandatory in order to select efficiently data needed for discovery of new physics in a proton proton collision environment where the rates of jets observed in the detector are high and the tau identification is difficult. New physics scenarios targeted specifically by the the ATLAS tau trigger system are Standard Model or Supersymmetric Higgs production, and production of new exotic resonances. This contribution will detail how the analysis techniques developed offline for efficient data analysis have been implemented in the algorithms which run online at the trigger. In particular, the focus will be on how to satisfy the requirements imposed by the physics goals while addressing the limitations from the overall event rate and latency allowed. The prospects for early running during the first LHC collisions and trigger evolution from first collisions to stable running will be also summarized, following change of trigger goals from commissioning of detector to measurement of Standard Model physics and discoveries. (author)

  5. The Physics session at the ATLAS overview week

    Takai, H.

    The Physics session at the ATLAS overview week at Clermont-Ferrand will be certainly remembered by the presentation of Blaise Pascal's historical experiment repeat. And why not? He is the local hero and by the looks of his primitive measurements it does take a lot of guts to explain his results on the basis of air columns. He was also lucky that he did not have to simulate his results on modern day computers but used the Pascaline. Certainly a man ahead of his time. Of course that wasn't all. Surrounded by a chain of (luckily) extinct volcanoes, rolling hills, and superb views, Clermont-Ferrand provided the perfect backdrop for the physics discussions. It was once more seen that the physics of ATLAS is diverse and that it is healthy and doing well. Many people contributed to the success of the session. Fabiola started the session precisely at 14:00 with a summary of the most recent activities from the physics coordination. Somehow what got stuck in my mind was the very positive statistics on how many prese...

  6. Atlas Pulsed Power Facility for High Energy Density Physics Experiments

    The Atlas facility, now under construction at Los Alamos National Laboratory (LANL), will provide a unique capability for performing high-energy-density experiments in support of weapon-physics and basic-research programs. It is intended to be an international user facility, providing opportunities for researchers from national laboratories and academic institutions around the world. Emphasizing institutions around the world. Emphasizing hydrodynamic experiments, Atlas will provide the capability for achieving steady shock pressures exceeding 10-Mbar in a volume of several cubic centimeters. In addition, the kinetic energy associated with solid liner implosion velocities exceeding 12 km/s is sufficient to drive dense, hydrodynamic targets into the ionized regime, permitting the study of complex issues associated with strongly-coupled plasmas. The primary element of Atlas is a 23-MJ capacitor bank, comprised of 96 separate Marx generators housed in 12 separate oil-filled tanks, surrounding a central target chamber. Each tank will house two, independently-removable maintenance units, with each maintenance unit consisting of four Marx modules. Each Marx module has four capacitors that can each be charged to a maximum of 60 kilovolts. When railgap switches are triggered, the marx modules erect to a maximum of 240 kV. The parallel discharge of these 96 Marx modules will deliver a 30-MA current pulse with a 4-5-micros risetime to a cylindrical, imploding liner via 24 vertical, tri-plate, oil-insulated transmission lines. An experimental program for testing and certifying all Marx and transmission line components has been completed. A complete maintenance module and its associated transmission line (the First Article) are now under construction and testing. The current Atlas schedule calls for construction of the machine to be complete by August, 2000. Acceptance testing is scheduled to begin in November, 2000, leading to initial operations in January, 2001

  7. Impact and Amount of Academic Self-efficacy and Stress on the Mental and Physical Well-Being of Students Competing in the 4th Olympiad of Iranian Universities of Medical Sciences

    Leila Vahedi

    2014-12-01

    Full Text Available Introduction: Studying mental and physical health and their determinants is an important issue, especially among future health providers.Methods: This is a sectional-analytical study whose target population was students who had participated in the 4th National Olympiad of Medical Sciences Universities in Tabriz, Iran, held in February 4-7 2013.Web-based designed questionnaires were sent to all 328 participating students’ emails containing our questionnaires that were designed as web-based through Google Drive was sent to all available email addresses of our target population. Questionnaires consisted of student life stress inventory (SLSI, SF-36 (Short Form Health Survey, and College Self-Efficacy Inventory (CSEI, which were translated to Persian and revalidated. The data were analyzed using SPSS ver.19 software.Results: 59 students completely filled the questionnaires and enrolled in the study. In the area of student life stress inventory, the total score of the participants ranged from 79(13.73% to 168(63.73% with a mean of 130.74(40.05% and SD of 21.51(10.84%. On the college self-efficacy scale, participants’ scores ranged from 62(40.79% to 152(100% with a mean of 114.29(77.10% and SD of 22.82(14.20%. On the Sf-36 form, participants scored 72.28±14.09% on average (Min=44.03%, Max=98.75%. The Spearman correlation coefficient test indicated that all correlations between variables were statistically significant (p<0.001. Conclusion: It can be concluded that adopting additional methods to increase self-efficacy and decrease stress amongst medical students in the academic population will lead to improved mental and physical health, which can help national improvement of science.

  8. ATLAS QCD measurements for Higgs studies and New Physics searches

    Proissl, M; The ATLAS collaboration

    2014-01-01

    Our understanding of the modelling of Standard Model processes plays an important role for Higgs physics and searches beyond the Standard Model. Measurements such as vector boson plus jet production are essential for the understanding of backgrounds, modelling of double parton interactions, heavy flavour production from gluon splitting and modelling of the underlying event. Precision QCD measurements can also be used to constrain parton density functions, which are important for the understanding of the Higgs boson production cross section and the Standard Model backgrounds at the LHC kinematic limits. A review of recent ATLAS measurements is presented.

  9. First Impressions of ATLAS Physics by a Newcomer

    Konstantinidis, N

    I was very lucky to be at the Lund workshop. Although the schedule was admittedly very heavy, the attendance and the interest of the participants were surprisingly high! The interaction between people working on improving the detector performance and those trying to exploit it in order to achieve the maximal physics reach was very useful, boosting the motivation of the former to make ATLAS work and giving a chance to the latter to appreciate all the difficult stages that preceed the final physics analyses. For me, as a newcomer, it was particularly useful to get exposed to the full richness of the ATLAS physics potential. Also I had the chance to meet and discuss with many people and get suggestions for work and proposals for "joint projects". The social aspect of the workshop was equally important for a newcomer. I had the chance to meet many people and had a lot of fun going out, especially at the "cultural night of Lund" during the concert of the Lund University Soul Band, where, apart from dancing, we a...

  10. ATLAS Physics Prospects for the Upgraded LHC

    Ilic, N; The ATLAS collaboration

    2015-01-01

    The 2010-2012 operation period at the LHC has been very successful, including the discovery of a new particle with a mass of about 125 GeV compatible within uncertainties with the Higgs boson predicted by Standard Model. Precise measurements of the properties of this boson, and the discovery of new physics beyond the Standard Model, are primary goals of future running at the LHC. The physics prospects with a proton-proton centre-of-mass energy of 14 TeV are presented for 300 fb-1 and 3000 fb-1 at the high-luminositiy LHC. The ultimate precision attainable on measurements of the couplings of the 125 GeV particle to elementary fermions and bosons is discussed, as well as perspectives on the searches for partners associated with this new object, predicted by several extensions of the standard theory. Supersymmetry is one of the best motivated and well-studied extensions of the Standard Model. The current searches at the LHC have yielded sensitivity to TeV scale gluinos and 1st and 2nd generation squarks, as well...

  11. ATLAS Physics Prospects for High Luminosity LHC

    Ilic, N; The ATLAS collaboration

    2014-01-01

    Run-I at the LHC has been very successful, including the discovery of a new particle with a mass of about 125 GeV compatible within uncertainties with the Higgs boson predicted by Standard Model. Precise measurements of the properties of this boson, and the discovery of new physics beyond the Standard Model, are primary goals of future running at the LHC. The physics prospects with a proton-proton centre-of-mass energy of 14 TeV are presented for 300 fb-1 (Phase I) and 3000 fb-1 at the high-luminositiy LHC (Phase II). The ultimate precision attainable on measurements of the couplings of the 125 GeV particle to elementary fermions and bosons is discussed, as well as perspectives on the searches for partners associated with this new object, predicted by several extensions of the standard theory. Supersymmetry is one of the best motivated and well-studied extensions of the Standard Model. The current searches at the LHC have yielded sensitivity to TeV scale gluinos and 1st and 2nd generation squarks, as well as ...

  12. Physics prospects with the upgraded ATLAS detector

    Rizatdinova, Flera; The ATLAS collaboration

    2015-01-01

    Run-I at the LHC has been very successful, including the discovery of a new particle with a mass of about 125 GeV and with properties compatible with those of the Standard Model Higgs boson within uncertainties. Precise measurements of the properties of this boson, and the discovery of new physics beyond the Standard Model, are primary goals of future running at the LHC. The physics prospects based on 300/fb and 3000/fb protonproton collision data to be collected at 14 TeV are presented. The ultimate precision attainable on measurements of the couplings of the 125 GeV particle to elementary fermions and bosons is discussed, as well as perspectives on the searches for partners associated with this new object, predicted by several extensions of the standard theory. Supersymmetry is one of the best motivated and well-studied extensions of the Standard Model. The current searches at the LHC have yielded sensitivity to TeV scale gluinos and 1st and 2nd generation squarks, as well as to 3rd generation squarks and e...

  13. Physics prospects with the upgraded ATLAS detector

    Volpi, Guido; The ATLAS collaboration

    2015-01-01

    Run-I at the LHC has been very successful, including the discovery of a new particle with a mass of about 125 GeV and with properties compatible with those of the Standard Model Higgs boson within uncertainties. Precise measurements of the properties of this boson, and the discovery of new physics beyond the Standard Model, are primary goals of future running at the LHC. The physics prospects based on 300/fb and 3000/fb proton-proton collision data to be collected at 14 TeV are presented. The ultimate precision attainable on measurements of the couplings of the 125 GeV particle to elementary fermions and bosons is discussed, as well as perspectives on the searches for partners associated with this new object, predicted by several extensions of the standard theory. Supersymmetry is one of the best motivated and well-studied extensions of the Standard Model. The current searches at the LHC have yielded sensitivity to TeV scale gluinos and 1st and 2nd generation squarks, as well as to 3rd generation squarks and ...

  14. Searches for Physics Beyond Standard Model at LHC with ATLAS

    Soni, N; The ATLAS collaboration

    2013-01-01

    This contribution summarises some of the recent results on the searches for physics beyond the Standard Model using the pp-collision data collected at Large Hadron Collider (LHC) with ATLAS detector at centre-of-mass energy of sqrt{s} = 8 TeV. The search for supersymmetry (SUSY) is carried out in a large variety of production modes such as strong production of squarks and gluinos, weak production of sleptons and gauginos os production of massive long-lived particles through R-parity violation. No excess above the Standard Model background expectation is observed and exclusion limits are derived on the production of new physics. The results are interpreted as lower limits on sparticle masses in SUSY breaking scenarios. Searches for new exotic phenomena such as dark matter, large extra dimensions and black holes are also performed at ATLAS. As in the case of SUSY searches, no new exotic phenomena is observed and results are presented as upper limits on event yields from non-Standard-Model processes in a model i...

  15. The upgraded ATLAS and CMS detectors and their physics capabilities.

    Wells, Pippa S

    2015-01-13

    The update of the European Strategy for Particle Physics from 2013 states that Europe's top priority should be the exploitation of the full potential of the LHC, including the high-luminosity upgrade of the machine and detectors with a view to collecting 10 times more data than in the initial design. The plans for upgrading the ATLAS and CMS detectors so as to maintain their performance and meet the challenges of increasing luminosity are presented here. A cornerstone of the physics programme is to measure the properties of the 125GeV Higgs boson with the highest possible precision, to test its consistency with the Standard Model. The high-luminosity data will allow precise measurements of the dominant production and decay modes, and offer the possibility of observing rare modes including Higgs boson pair production. Direct and indirect searches for additional Higgs bosons beyond the Standard Model will also continue. PMID:26949808

  16. ATLAS for the First Physics Run: Detector and Resources Planning

    Jenni, P.

    Over the past year not only have we had the pleasure of learning about exciting new physics concepts like signatures for 'extra dimensions', but we have also had to become familiar with less enjoyable matters like 'cost to completion'. Whereas ATLAS will do a great job on the first issue once we have the experiment in place, the second one definitely shows us that we are facing hard times for the coming years until we get the detector up and running. More than a year ago an internal ATLAS Working Group started an evaluation of the resources needed for maintenance and operation (M&O) work already required in the current years before the detector is fully ready for data. The same group also collected first information about cost overruns and items not included in the initial cost evaluation of the detector construction, called internally 'class-2' costs. The Resources Review Board (RRB) was presented with our preliminary estimates for the first time at its April meeting, 2001. Since then a great deal of wo...

  17. Search for new Physics using Jets at ATLAS

    Abdallah, J; The ATLAS collaboration

    2012-01-01

    Studies of high energy jets at the Large Hadron Collider is one of the most direct way to search for physics beyond the Standard Model. Often the backgrounds from the Standard Model processes are quite large, and therefore a good understanding of the jet performance associated with the use of data-driven methods are crucial for achieving a good sensitivity. This conference report presents a compilation of the latest results on the Exotics searches in ATLAS involving a jet plus anything else in the final state based on the analysis of the 2011 and 2012 pp collision data collected with the ATLAS detector at a center-of-mass energy of 7 TeV and 8 TeV respectively. We summarize namely the analyses of the monojets, dijets and multijets final states where the data are confronted with the Standard Model predictions. The results are interpreted in the context of various models Beyond the Standard Model: dark matter, light gravitino production, contact interactions and gravitationally mediated effects in large extra d...

  18. New physics searches with heavy flavour with the ATLAS experiment

    Flavour changing neutral currents and precision measurements of CP violation are investigated by the ATLAS experiment at the Large Hadron Collider at CERN as probes to physics beyond the Standard Model. This paper presents recent update of flavour tagged time- dependent analysis of Bs → J/ψ φ, angular analysis of Bd → K*μ+μ− and a search for the rare decay B0s → μ+μ− with measurement of upper limit on its branching fraction. All analyses use 4.9 fb−1 of integrated luminosity collected in 2011 at centre-of-mass energy of 7 TeV and the results are in agreement with Standard Model predictions

  19. Searches for New Physics with the ATLAS Detector using Jets

    Krizka, Karol; The ATLAS collaboration

    2016-01-01

    The Dark Matter (DM) nature remains one of the great puzzles of particle physics; while we know that about 27% of the universe is in the form of DM, little is known about its properties. If produced at the LHC, it should couple to the standard model though some mediator. The mediator can decay into dark matter particles that escape the detector, leaving a large missing transverse momentum (MET) as their signature. Also the mediator can decay into two quarks, which would appear as a bump in the invariant dijet mass spectrum. Recent results from ATLAS based on the presence of significant MET along with a variety of objects, and a dijet mass-spectrum analysis will be discussed.

  20. Searches for New Physics in boosted topologies at ATLAS

    CERN. Geneva

    2016-01-01

    The large increase in collision energy that the LHC reached in Run 2  provides an unprecedented opportunity to search for new physics beyond the Standard Model (SM). Various extensions of the SM predict heavy resonances at the TeV scale, which couple predominantly to the Higgs and electroweak gauge bosons and to top and bottom quarks. At resonance masses well above 1 TeV, these searches face specific challenges and  employ new identification techniques to disentangle the decay products of the boson in highly boosted configurations. This talk will review recent ATLAS Run-2 searches in various possible final states as well as  the dedicated techniques related to the specificity of such event topologies.

  1. Using image partitions in 4th Dimension

    Gasparri, Giovanni

    2004-01-01

    I have plotted an image by using mathematical functions in the Database "4th Dimension". I'm going to show an alternative method to: detect which sector has been clicked; highlight it and combine it with other sectors already highlighted; store the graph information in an efficient way; load and splat image layers to reconstruct the stored graph.

  2. European Code against Cancer 4th Edition

    Friis, Søren; Kesminiene, Ausrele; Espina, Carolina;

    2015-01-01

    were given for carcinogenic drugs and medical radiation in the 4th edition of European Code against Cancer. It is crucial that the application of these measures relies on medical expertise and thorough benefit-risk evaluation. This also pertains to cancer-preventive drugs, and self-medication with...

  3. Toward 4th generation district heating

    Li, Hongwei; Svendsen, Svend; Dalla Rosa, Alessandro;

    2014-01-01

    comparing with other local heat generation units. The design and operation of DH systems therefore needs to be re-examined, part of the solution being low operational temperature. The 3-years IEA DHC Annex X project ‘Towards 4th Generation District Heating: Experience and Potential of Low...

  4. ATLAS Physics Objects: Status and Performance at 13 TeV

    Riu, Imma; The ATLAS collaboration

    2016-01-01

    The ATLAS experiment is designed to study the proton-proton collisions produced at the Large Hadron Collider at CERN. During the early Run 2 data-taking period, the ATLAS trigger and data acquisition system has been used to collect a data sample useful to study the initial performance of the detector and physics objects at the new center-of-mass-energy of 13 TeV. This note describes in general the identification and reconstruction efficiencies, resolution and performance of the ATLAS physics objects by using proton-proton collisions collected since the spring until the summer of 2015.

  5. The 5th ATLAS Physics Workshop in Rome: Social Aspects

    Ferrari, P.

    Rome, the political and cultural capital of Italy, hosted the 5th ATLAS Physics Workshop. The attendance of this workshop was larger than any expectation: 450 people participated, making it a great success in terms of informing the broadest possible audience about the achievements of the physics groups in the last two years. The workshop took place at AULA MAGNA of the Literature & Philosophy faculty of the University of Roma Tre. The conference room was bright and large and could easily accommodate the wide audience, and the discomfort of hours of sitting was nicely offset by the frequent coffee breaks with excellent sweets and a large variety of drinks, which always seemed to offer the chance to stand up just in time! Participants listening to a talk in Aula Magna. The workshop started on Monday 6th June 2005 around 12:00 with the registration procedures, followed by a light lunch that was served (as was practically every lunch during the week) just outside the conference room. This arrangement ...

  6. QCD physics in Atlas at the large hadron collider

    The Large Hadron Collider (LHC) is a proton-proton collider with a 14 TeV center of mass energy. The design luminosity is 1034 cm-1s-1 with beam collisions separated by 25 ns. The initial operation for physics will take place at a luminosity of 1033cm-1s-1 and it is expected that the integrated luminosity delivered in the first year will be 10 fb-1. This integrated luminosity will result in very large event samples for most processes, for example: ∼108 leptonic W decays, 104 γ's with Et > 500GeV and 104 jets with Et > 1TeV. As a result of the high statistics event samples, the understanding of most QCD processes at 14TeV will be systematics limited after the first year of running. The Atlas detector [1] is a general purpose detector designed to be sensitive to the many physics processes which are expected at the LHC. It contains high performance tracking using silicon detectors and a transition radiation tracker in a 2 Tesla solenoidal magnetic field, a high resolution electromagnetic calorimeter based on lead-liquid argon, a hadron calorimeter based on steel-scintillator and Cu/W-liquid argon, and a large instrumented air-core toroid magnet system for muon measurement. The basic performance characteristics of these systems are given in Table 1

  7. Nano Reviews in its 4th Volume

    Biju, Vasudevanpillai

    2013-01-01

    Nano Reviews - now in its 4th volume - is a unique Open Access international journal which publishes articles in the fields of nanoscience, nanotechnology, nanobiotechnology, and single-molecule research, and has successfully published cutting-edge research results and reviews in these areas over the past three years (vols. 1-3). The importance of nanoscience and nanotechnology for future technology and health care is now well recognized, which is apparent from the ever-accelerating growth of...

  8. The 5th ATLAS Physics Workshop in Rome: Report from the Physics Sessions

    Cobal, M

    The 5th ATLAS physics workshop took place between the 6th and the 11th of June in Rome (after Trest '95, Grenoble '98, Lund '01, and Athens '03). This event turned out to be a great occasion to review the status of the physics and detector performance studies, under the beautiful sun of Rome. It is quite difficult to summarize the 100 talks (for a total of about 35 hours of presentations and discussions): I will just try to give here the general flavour of the workshop structure and conclusions. Four groups represented the Combined Detector Performances: Flavour tagging, E/gamma, Muon Combined and Jet/missing-transverse-energy/Tau. The main focus has been on the results of trigger studies: one introductory and one final talk provided the frame for more detailed presentations embedded in the relevant sessions. Progress was shown also from the Combined Testbeam analyses, where the data from the full ATLAS slice, collected in 2004, are being validated on real data reconstruction algorithms. During the physics ...

  9. Flavour tagging methods used in the ATLAS B physics program

    Full text: Major tasks of the ATLAS B-physics program are the measurement of the B0s oscillations and the weak mixing phase Φs. The B0s oscillation parameter δms will be measured by using the hadronic decay channels B0s → Ds(φ, π)π and B0s → Ds(φ, π)a1, while the weak mixing phase Ψs uses the channel B0s → J/ψ(μ+, μ-)φ, with φ → K+K-. For an accurate measurement the determination of the B0s flavour at production time is crucial. Various methods for flavour tagging like e.g. opposite side soft muon tagging or same side jet charge tagging are studied and possible calibration channels are explored. Also the combination of different kinematic observables in order to receive event-by-event mistag rates using a multivariate analysis will be presented. (author)

  10. Virtual Visit to the ATLAS Control Room by Institute of Nuclear Physics, Cracow, Poland

    ATLAS Experiment

    2012-01-01

    The 12 Festival of Science "Theory-knowledge-experience...". Fest will be located on the traditional Main Square, which is visited by thousands of citizens and tourists. Institute of Nuclear Physics as usual participates in this annual event. Our visitors will learn the secrets of the CERN experiments on the Large Hadron Collider - ATLAS, LHCb, ALICE, CMS, find out more about the Higgs particles, antimatter quark-gluon plasma (beeing guided by our scientists and PhD students). One of the attractions will be ATLAS Control Room Virtual Visit. Visiting people will have an opportunity to see how ATLAS is controlled and operated to collect its exciting data and ask questions to scientists and engineers involved in LHC program at CERN. Institute of Nuclear Physics has prepared also several interactive demonstrations of Atomic Force Microscopy, Magnetic Resonance, Hadron Therapy and Crystal Physics. The Institute of Nuclear Physics of the Polish Academy of Sciences carries out basic and applied research in physics, ...

  11. 16 December 2013 - Hooke Professor of Experimental Physics and Pro Vice Chancellor University of Oxford Prof. I. Walmsley visiting the ATLAS cavern with ATLAS Collaboration Deputy Spokesperson T. Wengler, Physics Department, ATLAS Collaboration P. Wells and Chair, CMS Collaboration Board, Oxford University and Purdue University I. Shipsey

    Anna Pantelia

    2013-01-01

    16 December 2013 - Hooke Professor of Experimental Physics and Pro Vice Chancellor University of Oxford Prof. I. Walmsley visiting the ATLAS cavern with ATLAS Collaboration Deputy Spokesperson T. Wengler, Physics Department, ATLAS Collaboration P. Wells and Chair, CMS Collaboration Board, Oxford University and Purdue University I. Shipsey

  12. Trigger selection software for beauty physics in ATLAS

    Emeliyanov, D; Baines, J; Kirk, J [Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot (United Kingdom); Panikashvili, N; Tarem, S [Department of Physics, Technion, Haifa (Israel); Parodi, F; Schiavi, C [Dipartimento di Fisica dell' Universita di Genova e I.N.F.N., Genova (Italy); Sivoklokov, S [Moscow State University, Moscow (Russian Federation); Watson, A [School of Physics and Astronomy, University of Birmingham, Birmingham (United Kingdom)], E-mail: Dmitry.Emeliyanov@cern.ch

    2008-07-01

    The unprecedented rate of beauty production at the LHC will yield high statistics for measurements such as CP violation and B{sub a} oscillations and will provide the opportunity to search for and study very rare decays, such as B {yields} {mu}{mu}. The trigger is a vital component for this work and must select events containing the channels of interest from a huge background in order to reduce the 40 MHz bunch crossing rate down to 100-200 Hz for recording, of which only a part will be assigned to B-physics. Requiring a single or di-muon trigger provides the first stage of the B-trigger selection. Track reconstruction is then performed in the Inner Detector, either using the full detector, at initial luminosity, or within Regions of Interest identified by the first level trigger at higher luminosities. Based on invariant mass, combinations of tracks are selected as likely decay products of the channel of interest and secondary vertex fits are performed. Events are selected based on properties such as fit quality and invariant mass. We present fast vertex reconstruction algorithms suitable for use in the second level trigger and event filter (level three). We discuss the selection software and the flexible trigger strategies that will enable ATLAS to pursue a B-physics programme from the first running at a luminosity of about 10{sup 31}cm{sup -2}s-{sup 1} through to the design luminosity running at 10{sup 34}cm{sup -2}s-{sup 1}.

  13. Physics at 13 TeV: ATLAS - extracting the most from new LHC data

    Antonella Del Rosso

    2014-01-01

    The unprecedented collision energy of LHC run 2 will bring physicists a step further into an as-yet unexplored world, where new particles should eventually leave their signature in the powerful detectors. This may well happen in the form of “missing transverse momentum” – that is, energy that is not detected directly but can be deduced by measuring the imbalance of the observed particles. Often called “missing energy” for simplicity, scientists predict (see here) that it could be the signature of many new physics processes.   “In ATLAS, we have performed many analyses, searches and measurements using the missing transverse momentum signature with the run 1 data. Reconstruction of the missing transverse momentum in ATLAS is based on calibrated jets and leptons, plus other calorimeter energy deposits,” explains David Charlton, ATLAS Spokesperson. Not all the new processes that ATLAS plans to investigate will be studied using...

  14. 4th international interdisciplinary chaos symposium

    Banerjee, Santo; Caglar, Suleyman; Ozer, Mehmet; Chaos and complex systems

    2013-01-01

    Complexity Science and Chaos Theory are fascinating areas of scientific research with wide-ranging applications.  The interdisciplinary nature and ubiquity of complexity and chaos are features that provides scientists with a motivation to pursue general theoretical tools and frameworks. Complex systems give rise to emergent behaviors, which in turn produce novel and interesting phenomena in science, engineering, as well as in the socio-economic sciences. The aim of all Symposia on Chaos and Complex Systems (CCS) is to bring together scientists, engineers, economists and social scientists, and to discuss the latest insights and results obtained in the area of corresponding nonlinear-system complex (chaotic) behavior. Especially for the “4th International Interdisciplinary Chaos Symposium on Chaos and Complex Systems,” which took place April 29th to May 2nd, 2012 in Antalya, Turkey, the scope of the symposium had been further enlarged so as to encompass the presentation of work from circuits to econophysic...

  15. 4th Generation District Heating (4GDH)

    Lund, Henrik; Werner, Sven; Wiltshire, Robin;

    2014-01-01

    This paper defines the concept of 4th Generation District Heating (4GDH) including the relations to District Cooling and the concepts of smart energy and smart thermal grids. The motive is to identify the future challenges of reaching a future renewable non-fossil heat supply as part of the...... implementation of overall sustainable energy systems. The basic assumption is that district heating and cooling has an important role to play in future sustainable energy systems – including 100 percent renewable energy systems – but the present generation of district heating and cooling technologies will have...... to be developed further into a new generation in order to play such a role. Unlike the first three generations, the development of 4GDH involves meeting the challenge of more energy efficient buildings as well as being an integrated part of the operation of smart energy systems, i.e. integrated smart...

  16. Search for 4th generation quarks

    Khalil, Sadia

    2013-01-01

    We present the results of searches for a new heavy 4th generation and vector-like quark using leptonic, and semileptonic final states comprising of electron(s) and/or muon(s) and jets. The full sample of 5 fb$^{-1}$ of pp collisions recorded with CMS experiment in 2011 at the center-of-mass energy of 7 TeV has been used. In leptonic final states, two same sign dilepton and trilepton channels have been explored. For semileptonic events, the search for heavy quarks is carried out using events with one lepton, and at least four jets with imbalance in transverse momenta, requiring at least one of the jet identified as originating from the fragmentation of a b-quark. No significant excess of events over Standard Model expectations is observed, therefore upper mass limits are set at 95\\% C.L.

  17. 4th International Conference on Power Transmissions

    2013-01-01

    This books contains the Proceedings of the 4th International Conference on Power Transmissions, that was held in Sinaia, Romania from June 20 -23, 2012. Power Transmissions is a very complex and multi-disciplinary scientific field of Mechanical Engineering that covers the different types of transmissions (mechanical, hydraulic, pneumatic) as well as all the machine elements involved, such as gears, bearings, shafts, couplings and a lot more. It concerns not only their basic theory but also their design, analysis, testing, application and maintenance. The requirements set to modern power transmissions are really tough to meet: They need to be more efficient, stronger, smaller, noiseless, easier to produce and to cost less. There is a strong demand to become easier in operation and maintenance, or even automatic and in maintenance-free. Last but not least, they should be easily recycled and respect the environment. Joint efforts of specialists from both academia and industry can significantly contribute to fulf...

  18. 4th World Conference on Soft Computing

    Abbasov, Ali; Yager, Ronald; Shahbazova, Shahnaz; Reformat, Marek

    2016-01-01

    This book reports on advanced theories and cutting-edge applications in the field of soft computing. The individual chapters, written by leading researchers, are based on contributions presented during the 4th World Conference on Soft Computing, held May 25-27, 2014, in Berkeley. The book covers a wealth of key topics in soft computing, focusing on both fundamental aspects and applications. The former include fuzzy mathematics, type-2 fuzzy sets, evolutionary-based optimization, aggregation and neural networks, while the latter include soft computing in data analysis, image processing, decision-making, classification, series prediction, economics, control, and modeling. By providing readers with a timely, authoritative view on the field, and by discussing thought-provoking developments and challenges, the book will foster new research directions in the diverse areas of soft computing. .

  19. News Particle Physics: ATLAS unveils mural at CERN Prize: Corti Trust invites essay entries Astrophysics: CERN holds cosmic-ray conference Researchers in Residence: Lord Winston returns to school Music: ATLAS scientists record physics music Conference: Champagne flows at Reims event Competition: Students triumph at physics olympiad Teaching: Physics proves popular in Japanese schools Forthcoming Events

    2011-01-01

    Particle Physics: ATLAS unveils mural at CERN Prize: Corti Trust invites essay entries Astrophysics: CERN holds cosmic-ray conference Researchers in Residence: Lord Winston returns to school Music: ATLAS scientists record physics music Conference: Champagne flows at Reims event Competition: Students triumph at physics olympiad Teaching: Physics proves popular in Japanese schools Forthcoming Events

  20. B-physics studies with the ATLAS detector

    Nomidis, I; The ATLAS collaboration

    2012-01-01

    Measuring heavy flavour production at LHC provides an opportunity for a new insight into QCD and extensive tests at the new energy regime of 7 TeV at center-of-mass energy. ATLAS results for quarkonium production are presented and compared to theoretical predictions of various QCD models. Open b and bb ̄ cross-section measurements are compared to next-to-leading order calculations. ATLAS capabilities to reconstruct B-hadrons in exclusive decays is also reported with measurements of B-hadron lifetimes.

  1. Application of Grid technologies and search for exotics physics with the ATLAS experiment at the LHC

    March, Luis; Ros, Eduardo

    The work presented in this thesis has been performed within the ATLAS (A Toroidal LHC ApparatuS) collaboration. Two subjects have been investigated. One subject is the Computing System Commissioning (CSC) production using an instance of the Production System (ProdSys), called Lexor, and the test of the ATLAS Distributed Analysis (ADA) using ProdSys. The other subject is the sim- ulation and subsequent analysis of processes involving new particles predicted by the Little Higgs model within the ATLAS detector. An introduction to the Standard Model (SM), the Large Hadron Collider (LHC) and the ATLAS experiment, software and computing is given in chapter 1. The problems of the SM are discussed and some proposed solutions are reviewed. The SM introduction is followed by an overview of LHC and ATLAS. The main AT- LAS subsystems are described and the ATLAS software and computing model is discussed. Many physics processes within and beyond the Standard Model involve b-quark decays. New heavy particles, expected in mo...

  2. Searches for new physics using the ATLAS detector

    Firan, Ana; Ye, Jingbo

    2008-01-01

    The search for the Higgs boson has been one of the main motivations for the construction of the Large Hadron Collider. In this study we show that there are new Higgs decay channels, previously neglected by the literature that proceed via internal photon conversion. For the Higgs masses of interest at the CERN LHC in the range of 100-150 GeV, the conversions to pairs of fermions represent a significant fraction of Higgs decays. In addition to the Higgs boson, other particles might be produced, like magnetic monopoles. We present the results of the simulation of the Dirac magnetic monopole production and discuss the feasibility of its detection with the ATLAS detector. This study shows that the magnetic monopole, if it exists, will be detected with the ATLAS detector. The number of events estimated for a luminosity of 1 fb -1 corresponding to the first year of the ATLAS experiment, indicates that the magnetic monopole will be found in the early ATLAS data.

  3. The Education and Outreach Project of ATLAS - A New Participant in Physics Education

    The ATLAS experiment at the Large Hadron Collider at CERN has a substantial collaborative Education and Outreach project. This article describes its activities and how it promotes physics to students around the world. With the extraordinary possibility to make groundbreaking discoveries, the ATLAS Experiment [1] at the Large Hadron Collider at CERN can play an important role in promoting contemporary physics at school. For many years ATLAS has had a substantial collaborative Education and Outreach (E and O) project in which physicists from various parts of the world take part. When the experiment begins in 2007, students from around the world will be analyzing data using cutting-edge technology. The unprecedented collision energies of the Large Hadron Collider allow ATLAS to decode the 'events' that unfold after the head-on collisions of protons (Fig. 1). The scientific results from these events will reveal much about the basic nature of matter, energy, space, and time. Students and others will be excited as they try to find events that may be signs for dark matter, extra dimensions of space, mini-black holes, string theory, and other fundamental discoveries. Science education and outreach and the promotion of awareness and appreciation of physics research have become important tasks for the research community and should be recognized as a natural and logical part of science research and as an important link between research and society. To be successful these activities have to be done in a systematic and professional way. Leading scientists together with multimedia experts can form a powerful team with teachers and educators in disseminating physics information to school and universities. The ATLAS collaboration has fully recognized the importance of education and outreach. The ATLAS E and O project can be a model for today's large science experiments in promoting science at schools and universities

  4. Derived physics data production in ATLAS: experience with Run 1 and looking ahead

    While a significant fraction of ATLAS physicists directly analyse the AOD (Analysis Object Data) produced at the CERN Tier 0, a much larger fraction have opted to analyse data in a flat ROOT format. The large scale production of this Derived Physics Data (DPD) format must cater for both detailed performance studies of the ATLAS detector and object reconstruction, as well as higher level and generally lighter-content physics analysis. The delay between data-taking and DPD production allows for software improvements, while the ease of arbitrarily defined skimming/slimming of this format results in an optimally performant format for end-user analysis. Given the diversity of requirements, there are many flavours of DPDs, which can result in large peak computing resource demands. While the current model has proven to be very flexible for the individual groups and has successfully met the needs of the collaboration, the resource requirements at the end of Run 1 were much larger than planned. In the near future, ATLAS plans to consolidate DPD production, optimising resource usage vs flexibility such that the final analysis format will be more homogeneous across ATLAS while still keeping most of the advantages enjoyed during Run 1. The ATLAS Run 1 DPD Production Model is presented along with an overview of the resource usage at the end of Run 1, followed by an outlook for future plans.

  5. 4th generation light source instrumentation

    This working group on 4th Generation Light Source (4GLS) Instrumentation was a follow-up to the opening-discussion on Challenges in Beam Profiling. It was in parallel with the Feedback Systems session. We filled the SSRL Conference Room with about 25 participants. The session opened with an introduction by Lumpkin. The target beam parameter values for a few-angstrom, self-amplified spontaneous emissions (SASE) experiment and for a diffraction-limited soft x-ray storage ring source were addressed. Instrument resolution would of course need to be 2-3 times better than the value measured, if possible. The nominal targeted performance parameters are emittance (1-2π mm mrad), bunch length (100 fs), peak-current (l-5 kA), beam size (10 microm), beam divergence (1 microrad), energy spread (2 x 10-4), and beam energy (10's of GeV). These are mostly the SASE values, and the possible parameters for a diffraction-limited soft x-ray source would be relaxed somewhat. Beam stability and alignment specifications in the sub-micron domain for either device are anticipated

  6. Searches for new physics with bosons at the ATLAS detector in LHC Run 2

    Iordanidou, Kalliopi; The ATLAS collaboration

    2016-01-01

    An overview of searches for new physics beyond the Standard Model with bosonic signatures with the ATLAS detector are presented. These include mostly searches for resonant production of two massive bosons (VV, VH, mono-V, Z$\\gamma$, $\\gamma\\gamma$, HH). The talk highlights most recent results using 2015 data collected at $\\sqrt{s}$ = 13 T eV .

  7. Searches for New Physics with Bosons at the ATLAS Detector in LHC Run II

    Iordanidou, Kalliopi; The ATLAS collaboration

    2016-01-01

    An overview of searches for new physics beyond the Standard Model with bosonic signatures with the ATLAS detector are presented. These include mostly searches for resonant production of two massive bosons (VV, Vh, mono-V, Z$\\gamma$, $\\gamma \\gamma$, hh). The talk highlights most recent results using 2015 data collected at $\\sqrt{s}$ = 13 TeV .

  8. Searches for physics beyond the Standard Model using jet-based resonances with the ATLAS Detector

    Frate, Meghan; The ATLAS collaboration

    2016-01-01

    Run2 of the LHC, with its increased center-of-mass energy, is an unprecedented opportunity to discover physics beyond the Standard Model. One interesting possibility to conduct such searches is to use resonances based on jets. The latest search results from the ATLAS experiment, based on either inclusive or heavy-flavour jets, will be presented.

  9. Search for new physics phenomena with heavy flavour quarks in ATLAS

    Smizanska, Maria; The ATLAS collaboration

    2016-01-01

    ATLAS has a wide programme of activities in B-physics. The results of studies in the electro-weak sector and beyond SM searches will be discussed, including CP violation and mixing in the B0_s and B0 systems, rare decay of B0_(s) to muon pairs.

  10. Searches for new physics with lepton flavours and multi-lepton final states in ATLAS

    Madar, Romain; The ATLAS collaboration

    2015-01-01

    Lepton flavours and multi-lepton signatures are powerful probes to new physics. ATLAS searches for lepton flavour violating decays of (beyond) the SM particles, leptoquarks, heavy leptons/neutrinos as well as for new phenomena in multi-lepton/photon final states are summarized in this talk. First LHC Run-2 results will be included if available.

  11. Search for BSM physics including dark matter at ATLAS

    Ju, Xiangyang; The ATLAS collaboration

    2016-01-01

    The increased centre-of-mass energy of the proton-proton collisions of the LHC run 2 gives a unique opportunity to extend the sensitivity to the production of particles not foreseen by the Standard Model. This talk summarises recent ATLAS results on BSM searches. Although the focus is on searches for production of DM particles, results include searches for heavy resonances in many final states and for production of supersymmetric particles.

  12. The performance of the ATLAS initial detector layout for B-physics channels

    At the start-up of LHC one expects parts of the ATLAS detector to be missing. This layout is called initial layout, whereas the fully staged detector is called complete layout. B-physics channels were simulated, reconstructed and analyzed using the software tools of ATLAS data challenge-1 (DC1). The performance of the detector with respect to quantities relevant to the analysis of the Bs → Dsπ channel and the validation of the full chain generation-simulation-reconstruction-analysis were evaluated for the initial and complete layout. (author)

  13. Searches for Exotic physics beyond the Standard Model with the ATLAS detector

    Haley, Joseph; The ATLAS collaboration

    2015-01-01

    An overview of Exotic physics searches with the ATLAS detector is given in this presentation, highlighting selected LHC Run 1 results as well as first Run 2 results (if available). The Standard Model of particle physics is thought to be “completed” with the discovery of the Higgs boson, though many yet to be answered questions remain, such as dark matter, baryon asymmetry of the Universe, neutrino masses, quark/lepton generations, etc. New physics scenarios addressing these questions predict new particles/phenomena in a wide range of topologies/final states, motivating us to develop signature-based search strategy. This talk will summarize ATLAS results on Exotic physics searches and future prospects at the LHC.

  14. Orientaciones de Meta y Compromiso Físico-Motor en Educación Física. Un estudio en alumnos de 4º de Educación Primaria. (Goals orientations and level of motor commitment in physical activity in physical education. A study of students in 4th of primary education .

    José Carlos Barbero Alvarez

    2008-04-01

    Full Text Available Resumen Partiendo de estudios previos que señalan la influencia que lo realizado en la infancia y adolescencia tiene en etapas vitales posteriores respecto a hábitos de participación en actividades físicas (Pate, Dowda, Baranowski y Puhl, 1993 y la relación existente entre nivel de capacidad física, orientaciones de meta y nivel de compromiso en actividades físicas (Goudas, Biddle y Fox, 1994; Tzetis, Goudas, Kourtesis y Zisi, 2002; Vlachopoulos y Biddle, 1996, en el presente trabajo se describe un estudio que se ha llevado a cabo con alumnos de 4º de Educación Primaria en Educación Física cuyo objetivo es determinar la existencia de relaciones entre orientaciones de meta, variables condicionales físicas (nivel de capacidad física y niveles de compromiso físico-motor en clases de Educación Física, medidas mediante el cuestionario TEOSQ, test deresistencia Shuttle-Run de 20 m y UPG (Unidad de posicionamiento global. Los resultados muestran la inexistencia de relaciones significativas entre orientación de meta y variables cinemáticas y fisiológicas, al considerar de forma global al conjunto de los sujetos. Al realizar el análisis en función del género se han encontrado relaciones significativas en el subgrupo mujeres entre la puntuación alcanzada en el factor orientación a la tarea y algunos parámetros cinemáticos y fisiológicos. Abstract Several previous studies pointed out to the influence of the experience acquired during childhood and adolescence on further vital stages, regarding the habits of taking part in physical activities, as well as therelation between physical capacity level, goal orientations and commitment level in physical activities. Therefore, in this paper we describe a study carried out with 4th-grade students in Primary Education in the Physical Education class. This study aims to determine the relations between goal orientations, physical conditional variables (physical capacity level and physical

  15. Searches for New Physics with Boosted Objects and Substructure with the ATLAS Detector

    Lopez Mateos, David; The ATLAS collaboration

    2016-01-01

    The use of substructure in the ATLAS experiment has matured during the Run 1 analysis period into the most powerful new tool for understanding high-pT physics at the LHC. In this document we present the studies that have been instrumental in reaching that maturity for boosted hadronic W/Z, Higgs and top tagging. We also summarize the results from Run 1 and Run 2 searches for new physics using substructure, thus demonstrating the power of these new techniques.

  16. Searches for new physics at CMS and ATLAS without Leptons or Resonances

    Duggan Daniel

    2013-05-01

    Full Text Available There is a long history of searches for new physics using resonances or leptons in the final state. We present searches for new physics that may have neither leptons or resonances in the final state. In these cases, the searches must be model driven. Examples include models of Dark Matter, Large Extra Dimensions, long lived particle, Magnetic Monopoles or Microscopic Black Holes. The analyses presented were performed at the ATLAS and CMS experiments at the Large Hadron Collider.

  17. Searches for new physics in jet final states in ATLAS at LHC Run II

    Amadio, Brian Thomas; The ATLAS collaboration

    2016-01-01

    The significant increase of the center-of-mass energy from 8 to 13 TeV at LHC Run II offers a great discovery potential for new physics at high mass, especially for strongly produced high-mass resonances, contact interactions, and TeV-gravity phenomena with high-pT jets. This talk presents the most recent Run II results from ATLAS on new physics searches in jet final states.

  18. Big Data Challenges in High Energy Physics Experiments: The ATLAS (CERN) Fast TracKer Approach

    Sotiropoulou, Calliope Louisa; The ATLAS collaboration

    2016-01-01

    We live in the era of “Big Data” problems. Massive amounts of data are produced and captured, data that require significant amounts of filtering to be processed in a realistically useful form. An excellent example of a “Big Data” problem is the data processing flow in High Energy Physics experiments, in our case the ATLAS detector in CERN. In the Large Hadron Collider (LHC) 40 million collisions of bunches of protons take place every second, which is about 15 trillion collisions per year. For the ATLAS detector alone 1 Mbyte of data is produced for every collision or 2000 Tbytes of data per year. Therefore what is needed is a very efficient real-time trigger system to filter the collisions (events) and identify the ones that contain “interesting” physics for processing. One of the upgrades of the ATLAS Trigger system is the Fast TracKer system. The Fast TracKer is a real-time pattern matching machine able to reconstruct the tracks of the particles in the inner silicon detector of the ATLAS experim...

  19. Lunar Science Conference, 4th, Houston, Tex., March 5-8, 1973, Proceedings. Volume 1 - Mineralogy and petrology. Volume 2 - Chemical and isotope analyses. Organic chemistry. Volume 3 - Physical properties

    Gose, W. A.

    1973-01-01

    The mineralogy, petrology, chemistry, isotopic composition, and physical properties of lunar materials are described in papers detailing methods, results, and implications of research on samples returned from eight lunar landing sites: Apollo 11, 12, 14, 15, 16, 17, and Luna 16 and 20. The results of experiments conducted or set up on the lunar surface by the astronauts are also described along with observations taken from Command Modules and subsatellites. Major topics include general geology, soil and breccia studies, petrologic studies, mineralogic analyses, elemental compositions, radiometric age determinations, rare gas chemistry, radionuclides, organogenic compounds, particle track records, thermal properties, seismic studies, resonance studies, orbital mapping, lunar atmosphere, magnetic studies, electrical studies, optical properties, and microcratering. Individual items are announced in this issue.

  20. A model-independent "General Search" for new physics with the ATLAS detector at LHC

    Bianchi, Riccardo Maria

    2014-06-02

    The LHC particle collider accelerates bunches of colliding protons at an energy never reached before, and a completely new landscape of new physics has been opened. In this scenario the number of possible physics processes and signatures becomes virtually infinite, making the setup of dedicated analyses impossible. Moreover it is important being able to reveal new physics signals even in regions of the phase-space where it is less lucky to be found, or where suitable theoretical models are missing. In this Thesis a new model-independent “General Search” for the ATLAS experiment has been conceived. In fact, at the time this project started, no model-independent search was set for ATLAS. In the end the new analysis has been run over the first data at 7 TeV collected by the ATLAS experiment, and the results presented. The data have shown a very good agreement with the Standard Model expectation, and no evidence of new physics has been observed. But the strategy and methodology of the new model-independent Ge...

  1. Analysis Facility infrastructure (TIER3) for ATLAS High Energy physics experiment

    ATLAS project has been asked to define the scope and role of Tier-3 resources (facilities or centres) within the existing ATLAS computing model, activities and facilities. This document attempts to address these questions by describing Tier-3 resources generally, and their relationship to the ATLAS Software and Computing Project. Originally the tiered computing model came out of MONARC (see http://monarc.web.cern.ch/MONARC/) work and was predicated upon the network being a scarce resource. In this model the tiered hierarchy ranged from the Tier-0 (CERN) down to the desktop or workstation (Tier 3). The focus on defining the roles of each tiered component has evolved with the initial emphasis on the Tier-0 (CERN) and Tier-1 (National centres) definition and roles. The various LHC projects, including ATLAS, then evolved the tiered hierarchy to include Tier-2s (Regional centers) as part of their projects. Tier-3s, on the other hand, have (implicitly and sometime explicitly) been defined as whatever an institution could construct to support their Physics goals using institutional and otherwise leveraged resources and therefore have not been considered to be part of the official ATLAS Research Program computing resources nor under their control, meaning there is no formal MOU process to designate sites as Tier-3s and no formal control of the program over the Tier-3 resources. Tier-3s are the responsibility of individual institutions to define, fund, deploy and support. However, having noted this, we must also recognize that Tier-3s must exist and will have implications for how our computing model should support ATLAS physicists. Tier-3 users will want to access data and simulations and will want to enable their Tier-3 resources to support their analysis and simulation work. Tiers 3s are an important resource for physicists to analyze LHC (Large Hadron Collider) data. This document will define how Tier-3s should best interact with the ATLAS computing model, detail the

  2. The Physics Performance Of And Level 2 Trigger For The Inner Detector Of Atlas (particle Detector, Muon Tracking, Cern)

    Dankers, R J

    1998-01-01

    In this thesis I describe a study on the physics performance of the ATLAS inner detector and a study on aspects of the second level trigger for the ATLAS inner detector. I present a short discussion of the standard model of particle physics, the Large Hadron Collider (LHC) at CERN and the physics potential of LHC. I introduce the ATLAS experiment, which is one of the four future LHC experiments. The ATLAS detector consists of an inner tracker (inner detector), calorimeters and a muon spectrometer. I present a parameterisation of the reconstruction accuracy of the ATLAS inner tracker for muon tracks. A method is described for calculating from a given set of parameters, representing a muon track in the inner tracker, a smeared set of parameters, as would be obtained from real measurements. Results are presented. I shortly describe supersymmetry and discuss the possibility to find evidence for the existence of super-symmetry with ATLAS. I describe the ATLAS trigger and data acquisition system. The task of the AT...

  3. New Physics Searches in the ZZ Sector with the ATLAS Experiment

    Barber, Thomas

    2010-01-01

    This thesis investigates the prospects of measuring anomalous triple gauge boson couplings in the ATLAS detector at the Large Hadron Collider (LHC). The most general (V ZZ, V = Z, γ) vertex is parametrised by four couplings, fV =Z, i=4,5 , all of which are zero in the Standard Model. Non-zero couplings would manifest themselves as an excess of events in ZZ diboson channels, and, if observed, would be a direct probe of new physics beyond the Standard Model A set of criteria are outlined to select events recorded by ATLAS in two such channels, ZZ → llll(l = e, μ) and ZZ → llν¯ν. With 1 fb−1 of integrated luminosity at a centre of mass energy of √s = 7 TeV, ATLAS can expect to observe 10±1 events in the ZZ → llll channel, with 0.5+0.9−0.2 background events. In the ZZ → llν¯ν channel, 6.2±0.7 signal events are expected, with a background of 1.9+2.0−0.2 events. The expected sensitivity of ATLAS to non-zero anomalous couplings is calculated by performing extended, unbinned maximum-likeliho...

  4. New Physics search in mono-jet final states with the ATLAS experiment at the LHC

    Gustavino, Giuliano; The ATLAS collaboration

    2015-01-01

    The search for new physics in final states with an energetic jet and large missing transverse momentum plays a major role in the physics program of the LHC experiments. This experimental signature is sensitive to different new physics models including the production of weakly interacting Dark Matter candidates, different scenarios of supersymmetry, models that predict the existence of extra dimensions and also to invisible decays of the Higgs boson. Preliminary results from the analysis performed with data collected at the center of mass energy of 13 TeV with the ATLAS experiment at the LHC are presented.

  5. New Physics search in mono-jet final states with the ATLAS experiment at the LHC

    Gustavino, Giuliano; The ATLAS collaboration

    2015-01-01

    The search for New Physics in final states with an energetic jet and large missing transverse momentum plays a major role in the physics program of the LHC experiments. This experimental signature is sensitive to different New Physics models including different scenarios of supersymmetry, models that predict the existence of extra dimensions and the production of Weakly Interacting Dark Matter candidates. Results based on the LHC Run-1 dataset corrisponding to 20.3 fb$^{-1}$ and firsts performance plots based on the data collected at the center of mass energy of 13 TeV with the ATLAS experiment at the LHC are presented.

  6. Searches for new physics with bosons at the ATLAS detector in LHC Run 2

    Marsden, Stephen Philip; The ATLAS collaboration

    2016-01-01

    Searches for new physics beyond the Standard Model at LHC Run II with the ATLAS detector are presented in this talk. The 13 TeV center of mass energy at LHC Run II will significantly increase sensitivity to new physics at high-energy/high-mass regime compared to Run I. This talk will highlight results on Exotics physics searches in LHC Run II as well as selected results from Run I.

  7. Search for new physics in rare decays of B-mesons at ATLAS

    Price, Darren; The ATLAS collaboration

    2016-01-01

    Processes involving the FCNC transitions in b-hadron decays are suppressed in the SM and are sensitive to new physics. New results in the search for the rare decays of Bs and Bd into mu+mu- are presented. They are based on the full sample of data collected by ATLAS at 7 and 8 TeV collision energy. The consistency with the SM and with other available measurements is discussed.

  8. Review of recent Heavy Flavour Physics results from the ATLAS experiment

    Barberis Dario

    2014-04-01

    Full Text Available Recent ATLAS B-Physics results at 7 TeV centre-of-mass energy at the Large Hadron Collider (LHC at CERN include the measurements of B+ production cross-sections and the angular analyses of the decays Bd0 → K*0µ+µ−, Bs0 J/ψφ and Λb0 → Λ0 J/ψ. All measurements done so far are in good agreement with Standard Model predictions.

  9. B-physics trigger for the ATLAS detector at LHC: recent developments

    Full text: A re-assessment of the B-physics trigger strategy was done for the ATLAS high level trigger, data acquisition and controls technical design report. It takes into account the effects of the increase of the LHC luminosity target, the possibility to have a reduced detector at the start of running, as well as various trigger deferral scenarios due to financial constraints and uncertainties. (author)

  10. Searches for new physics in events with multiple leptons at the ATLAS detector

    Wiik-Fuchs Liv

    2015-01-01

    Full Text Available Events containing three or more leptons are an invaluable probe for physics beyond the Standard Model (SM at the LHC. This paper summarizes a generic search for final states with three or more leptons as well as direct searches for heavy seesaw neutrinos, excited leptons and WZ resonances. All searches were conducted using the data recorded in 2012 in proton-proton collisions at √s = 8 TeV with the ATLAS detector at the LHC.

  11. Searches for new physics in diboson resonances with the ATLAS detector at the LHC

    Mastrandrea, Paolo; The ATLAS collaboration

    2015-01-01

    Resonant production of two massive bosons (WW, WZ, ZZ and HH) is a smoking gun signature for physics beyond the Standard Model. Searches for diboson resonances have been performed in final states with different numbers of leptons and jets including fat-jets with jet substructure. This talk highlights ATLAS searches for diboson resonances with LHC Run 1 data. First LHC Run-2 results will be included if available.

  12. Searches for new physics with leptons or jets at the ATLAS detector in LHC Run 2

    Siragusa, Giovanni; The ATLAS collaboration

    2016-01-01

    Many extensions of the Standard Model of particle physics predict heavy new particles and new phenomena, leading to characteristic signatures such as a narrow peak or excess in the tail of distributions. This talk highlights results on searches with fermionic signatures, mainly with high-pT jets and leptons, using 2015 data collected at 13 TeV with the ATLAS detector.

  13. Searches for new physics with lepton flavours and multi-lepton final states in ATLAS

    Madar, Romain; The ATLAS collaboration

    2015-01-01

    Lepton flavours and multi-lepton signatures are powerful probes to search for new physics. Also, the lepton sector of the Standard Model has to be extended to describe the observed neutrino oscillations. ATLAS experiment searches for lepton flavour violation, new gauge boson allowing to unify quark and lepton fields, heavy charged and neutral leptons as well as for new phenomena in multiphoton final states are summarized in this document. The most recent results will be discussed and compared with existing results.

  14. 5 February 2010: Romanian Former Minister of Justice V. Stoica (4th from left) visiting SM18 with, from left to right, University of Bucharest Faculty of Physics A. Costescu, DESY Hamburg C. Diaconu; Mrs Valeriu Stoica; Université de Montpellier II S. Ciulli; Technology Department Vacuum, Surfaces and Coatings group S. Ilie; Technology Department Head F. Bordry and Adviser for Russian Federation, Central and Eastern Europe T. Kurtyka.

    Maximilien Brice

    2010-01-01

    5 February 2010: Romanian Former Minister of Justice V. Stoica (4th from left) visiting SM18 with, from left to right, University of Bucharest Faculty of Physics A. Costescu, DESY Hamburg C. Diaconu; Mrs Valeriu Stoica; Université de Montpellier II S. Ciulli; Technology Department Vacuum, Surfaces and Coatings group S. Ilie; Technology Department Head F. Bordry and Adviser for Russian Federation, Central and Eastern Europe T. Kurtyka.

  15. Architecture of the ATLAS online physics-selection software at the LHC

    Casado, M P; Baines, J T M; Bee, C P; Biglietti, M; Bogaerts, A; Boisvert, V; Bosman, M; Brandt, S; Caron, B; Cataldi, G; Cavalli, D; Cervetto, M; Comune, G; Corso-Radu, A; Di Mattia, A; Díaz-Gómez, M; Dos Anjos, A; Drohan, J; Ellis, Nick; Elsing, M; Epp, B; Etienne, F; Falciano, S; Farilla, A; George, S; Ghete, V M; González, S; Grothe, M; Kaczmarska, A; Karr, K M; Khomich, A; Konstantinidis, N P; Krasny, W; Li, W; Lowe, A; Luminari, L; Ma, H; Meessen, C; Mello, AG; Merino, G; Morettini, P; Moyse, E; Nairz, A; Negri, A; Nikitin, N V; Nisati, A; Padilla, C; Parodi, F; Pérez-Réale, V; Pinfold, J L; Pinto, P; Polesello, G; Qian, Z; Rajagopalan, S; Resconi, S; Rosati, S; Scannicchio, D A; Schiavi, C; Schörner-Sadenius, T; Segura, E; De Seixas, J M; Shears, T G; Sivoklokov, S Yu; Smizanska, M; Soluk, R A; Stanescu, C; Tapprogge, Stefan; Touchard, F; Vercesi, V; Watson, A; Wengler, T; Werner, P; Wheeler, S; Wickens, F J; Wiedenmann, W; Wielers, M; Zobernig, G; 8th International Conference on Advanced Technology and Particle Physics : Conference on Astroparticle, Particle, Space Physics, Detectors and Medical Physics Applications

    2003-01-01

    Given the extremely high bunch crossing rate foreseen at the Large Hadron Collider (LHC) and the general-purpose nature of the ATLAS particle physics experiment, after the hardware-based first level trigger, an efficient and flexible trigger software is needed for the online selection of events. This filtering of events is organized in two levels: the second level trigger and the event filter. Both levels are referred together as High Level Trigger (HLT). A coherent approach to event selection across the HLT has been taken. Thus a common core software framework has been designed to maximise the usage of offline interfaces and software components, whilst allowing sufficient flexibility to meet the different interfaces and requirements of the two different levels, notably those of performance and robustness. This paper describes the architecture and high level design of the selection software and shows how the implementation meets the challenges of the ATLAS environment.

  16. Geneva University: Searches for Exotic Physics with leptons with the ATLAS detector

    Université de Genève

    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 30 November  2011 SEMINAIRE DE PHYSIQUE CORPUSCULAIRE at 17.00 hrs – Stückelberg Auditorium Searches for Exotic Physics with leptons with the ATLAS detector Dr Dominique Fortin, TRIUMF, Vancouver, Canada With the large 5 fb-1 sample of pp collisions recorded in 2011, ATLAS has taken full advantage of the opportunity to explore new territory at the TeV scale. In this seminar, an overview of searches for new exotic particles is presented, with a special emphasis on signatures with leptons. Information : http://dpnc.unige.ch/seminaire/annonce.html Organizer : Mrs Gabriella Pasztor

  17. Food Safety Should Come 1st on The 4th

    ... page: https://medlineplus.gov/news/fullstory_159697.html Food Safety Should Come 1st on the 4th Bacteria thrive ... this Fourth of July, don't forget about food safety. "Because foodborne bacteria thrive and multiply more quickly ...

  18. PREFACE: 4th International Symposium on Functional Materials (ISFM2011)

    Yin, Shu; Sekino, Tohru; Tanaka, Shun-ichiro; Sato, Tsugio; Lu, Li; Xue, Dongfeng

    2012-01-01

    The 4th International Symposium on Functional Materials (ISFM2011) was held in Sendai, Japan, on 2-6 August 2011. This Special Issue of Journal of Physics: Conference Series (JPCS) consists of partial manuscripts which were presented at ISFM2011. Advanced materials have experienced a dramatic increase in demand for research, development and applications. The aim of the International Symposium on Functional Materials (ISFM) was to provide an overview of the present status with historical background and to foresee future trends in the field of functional materials. The 4th symposium, ISFM 2011, covered a wide variety of topics within state-of-the-art advanced materials science and technology, and focused especially on four major categories including: Environmental Materials, Electronic Materials, Energy Materials and Biomedical Materials. As you know, a massive earthquake and the Tsunami that followed occurred near the Tohoku region on 11 March 2011. After the earthquake, although there were many difficulties in continuing to organize the symposium, we received warm encouragement from many researchers and societies, especially from the members of the International Advisory Committee and Organizing Committee, so that ISFM2011 could be held on schedule. We are honored that ISFM2011 was the first formal international academic conference held in the Tohoku area of Japan after the 11 March earthquake. About 140 participants from 14 countries took part in the ISFM2011 symposium, which included five plenary talks by world-leading scientists, 32 invited talks, and many oral and poster presentations. We are delighted to see that many researchers are interested in the synthesis and the properties as well as the applications of functional materials. Many fruitful and exciting research achievements were presented in the symposium. We believe that this symposium provided a good chance for scientists to communicate and exchange opinions with each other. We would also like to

  19. Virtual Visit to the ATLAS Control Room by Hellenic Physical Society in Eretria

    2013-01-01

    The Hellenic Physical Society (EEF) is a non-profit Scientific Society representing the Greek scientists of Physics, Physics Technologies and Physics of Communication. As part of its Education and Outreach activities, EEF organizes summer training courses for high school students from all over Greece. This year, thirty students will take part in EEF`s summer school "Advanced Concepts in Physics", which will take place in Eretria, from 23 to 28 of June. The ultimate aim of the school is to help students develop and sustain their curiosity about the natural world, enjoyment of scientific activity and understanding of how natural phenomena can be explained. Under the guidance of university professors, researchers and science educators, students are expected to enhance their scientific capabilities concerned with gathering and using evidence and to develop further scientific attitudes. This ATLAS Virtual Visit will be a perfect complement to a session dedicated to the LHC and the mysteries of the Universe. - See ...

  20. Results from ATLAS and CMS: Strong Interactions and New Physics

    Bethke, Siegfried; The ATLAS collaboration

    2016-01-01

    Measurements on global properties and precision results on fundamental parameters related to the Strong Interaction sector of the Standard Model of particle physics, and searches for new phenomena beyond the Standard Model, performed by the two large multi-purpose particle detectors at the Large Hadron Collider (LHC), are summarised in this review. Special attention is payed to the new data obtained at $\\sqrt{s}$ = 13~TeV in 2015, which offer a first glimpse at the large physics potential offered by the high-energy running of the LHC.

  1. Plasma-Based Studies on 4th Generation Light Sources

    Lee, R W; Baldis, H A; Cauble, R C; Landen, O L; Wark, J S; Ng, A; Rose, S J; Lewis, C; Riley, D; Gauthier, J-C; Audebert, P

    2000-11-28

    The construction of a short pulse tunable x-ray laser source will be a watershed for plasma-based and warm dense matter research. The areas we will discuss below can be separated broadly into warn dense matter (WDM) research, laser probing of near solid density plasmas, and laser-plasma spectroscopy of ions in plasmas. The area of WDM refers to that part of the density-temperature phase space where the standard theories of condensed matter physics and/or plasma statistical physics are invalid. Warm dense matter, therefore, defines a region between solids and plasmas, a regime that is found in planetary interiors, cool dense stars, and in every plasma device where one starts from a solid, e.g., laser-solid matter produced plasma as well as all inertial fusion schemes. The study of dense plasmas has been severely hampered by the fact that laser-based methods have been unavailable. The single most useful diagnostic of local plasma conditions, e.g., the temperature (T{sub e}), the density (n{sub e}), and the ionization (Z), has been Thomson scattering. However, due to the fact that visible light will not propagate at electron densities, n{sub e}, {ge} 10{sup 22} cm{sup -3} implies dense plasmas can not be probed. The 4th generation sources, LCLS and Tesla will remove these restrictions. Laser-based plasma spectroscopic techniques have been used with great success to determine the line shapes of atomic transitions in plasmas, study the population kinetics of atomic systems embedded in plasmas, and look at redistribution of radiation. However. the possibilities end for plasmas with n{sub e} {ge} 10{sup 22} since light propagation through the medium is severely altered by the plasma. The entire field of high Z plasma kinetics from laser produced plasma will then be available to study with the tunable source.

  2. Searches for new physics in high-mass fermionic final states and jets with the ATLAS detector at the LHC

    Viazlo, Oleksandr; The ATLAS collaboration

    2016-01-01

    Many new physics scenarios beyond the Standard Model predict resonant or non-resonant production of high-transverse momentum fermions or gluons. This report summarizes Run 2 searches for new physics in fermionic final states and jets at the ATLAS experiment in LHC.

  3. ATLAS Higgs Physics Prospects at the High Luminosity LHC

    Koffas, Thomas; The ATLAS collaboration

    2016-01-01

    The Higgs physics prospects at the high-luminosity LHC are presented, assuming an energy of sqrt(s) = 14 TeV and a data sample of 3000 fb-1. In particular, the ultimate precision attainable on the couplings measurements of the 125 GeV particle with elementary fermions and bosons is discussed, as well as perspectives on the search for the Standard Model di-Higgs production, which could lead to the measurement of the Higgs boson self-coupling.

  4. Searches for new physics with third generation quarks using the ATLAS detector at the LHC

    Ferrando, James; The ATLAS collaboration

    2016-01-01

    The presence of fermionic top/bottom quark partners, referred to as vector-like quarks (VLQs), may be an important ingredient for mechanism to cancel mass divergence for the Higgs boson required for “natural” theories beyond the Standard Model (SM). The VLQs typically couple preferentially to the third generation SM quarks. In addition, there are many extensions of the SM that predict new particles decaying into a pair of top-quarks, such as Kaluza-Klein excitation of the gluon in a Randall-Sundrum model of extra dimensions. This talk highlights recent ATLAS results for new physics involving third generation quarks at LHC Run 2.

  5. Search for Exotic Physics Beyond the Standard Model with the ATLAS Detector

    Smirnov, Yury; The ATLAS collaboration

    2015-01-01

    A summary is given of non-SUSY searches for New Physics with the ATLAS detector at the LHC. Shown results use a data sample collected with a center-of-mass energy of ${\\sqrt{s}=8}$ TeV and an integrated luminosity of around $20$ fb$^{-1}$ in proton-proton collisions. Four recent searches using leptons, photons, missing transverse energy, and jets are presented. No significant deviations from Standard Model expectations are observed, hence new limits on a wide set of predictions for several Standard Model extensions are set.

  6. Heavy Ion Physics Prospects with the ATLAS Detector at the LHC

    N. Grau; Collaboration, for the ATLAS

    2008-01-01

    The next great energy frontier in Relativistic Heavy Ion Collisions is quickly approaching with the completion of the Large Hadron Collider and the ATLAS experiment is poised to make important contributions in understanding QCD matter at extreme conditions. While designed for high-pT measurements in high-energy p+p collisions, the detector is well suited to study many aspects of heavy ion collisions from bulk phenomena to high-pT and heavy flavor physics. With its large and finely segmented e...

  7. TeV jets at ATLAS. A probe for new physics

    The production of particle jets will be the dominant process at the Large Hadron Collider (LHC), and jets will thus be the signal or de ne the environment of many analyses at the ATLAS experiment. Their precise measurement is a vital requirement for many potential discoveries of new physics beyond the Standard Model. The first part of this thesis introduces a new method to constrain and correct errors of the energy measurement of jets in the TeV regime. The emphasis is on a very high reach in transverse jet momenta even with earliest ATLAS data. This is achievable by an intercalibration utilizing the large inclusive jet production cross section. In the second part inclusive jet measurements are used to probe the validity of Quantum Chromodynamics (QCD). Several analyses are presented and their sensitivity is estimated using simulated data of an effective theory of a possible quark substructure. The search is then extended to effects of quantum gravity that could emerge at the LHC in scenarios of new physics, demonstrating that inclusive jet measurements are a powerful tool to probe QCD and a broad range of new physics models. (orig.)

  8. TeV jets at ATLAS. A probe for new physics

    Ruehr, Frederik

    2009-01-29

    The production of particle jets will be the dominant process at the Large Hadron Collider (LHC), and jets will thus be the signal or de ne the environment of many analyses at the ATLAS experiment. Their precise measurement is a vital requirement for many potential discoveries of new physics beyond the Standard Model. The first part of this thesis introduces a new method to constrain and correct errors of the energy measurement of jets in the TeV regime. The emphasis is on a very high reach in transverse jet momenta even with earliest ATLAS data. This is achievable by an intercalibration utilizing the large inclusive jet production cross section. In the second part inclusive jet measurements are used to probe the validity of Quantum Chromodynamics (QCD). Several analyses are presented and their sensitivity is estimated using simulated data of an effective theory of a possible quark substructure. The search is then extended to effects of quantum gravity that could emerge at the LHC in scenarios of new physics, demonstrating that inclusive jet measurements are a powerful tool to probe QCD and a broad range of new physics models. (orig.)

  9. ATLAS physics prospects at the high-luminosity LHC

    Clark, Philip James; The ATLAS collaboration

    2014-01-01

    Run-I at the LHC has been very successful, including the discovery of a new particle with a mass of about 125 GeV compatible within uncertainties with the Higgs boson predicted by Standard Model. Precise measurements of the properties of this boson, and the discovery of new physics beyond the Standard Model, are primary goals of future running at the LHC. The physics prospects with a proton-proton centre-of-mass energy of 14 TeV are presented for 300 fb-1 (Phase I) and 3000 fb-1 at the high-luminositiy LHC (Phase II). The ultimate precision attainable on measurements of the couplings of the 125 GeV particle to elementary fermions and bosons is discussed, as well as perspectives on the searches for partners associated with this new object, predicted by several extensions of the standard theory. Supersymmetry is one of the best motivated and well-studied extensions of the Standard Model. The current searches at the LHC have yielded sensitivity to TeV scale gluinos and 1st and 2nd generation squarks, as well as ...

  10. ATLAS Physics Prospects at the High-Luminosity LHC

    Ochoa, Jean-pierre; The ATLAS collaboration

    2014-01-01

    Run-I at the LHC has been very successful, including the discovery of a new particle with a mass of about 125 GeV compatible within uncertainties with the Higgs boson predicted by Standard Model. Precise measurements of the properties of this boson, and the discovery of new physics beyond the Standard Model, are primary goals of future running at the LHC. The physics prospects with a proton-proton centre-of-mass energy of 14 TeV are presented for 300 fb-1 (Phase I) and 3000 fb-1 at the high-luminositiy LHC (Phase II). The ultimate precision attainable on measurements of the couplings of the 125 GeV particle to elementary fermions and bosons is discussed, as well as perspectives on the searches for partners associated with this new object, predicted by several extensions of the standard theory. Supersymmetry is one of the best motivated and well-studied extensions of the Standard Model. The current searches at the LHC have yielded sensitivity to TeV scale gluinos and 1st and 2nd generation squarks, as well as ...

  11. A real CDIO mechanical engineering project in 4th semester

    Lauritsen, Aage Birkkjær

    consider the components as parts of a complex system. The semester project design is developed on basis of these considerations. The semester consists of 4 theory courses in: thermodynamics, control- and simulation of dynamic systems, electronics and hydraulic systems. The project work is performed in......In the past 6 years at the mechanical engineering study at the Engineering College of Aarhus we have been practicing project work on 4th Semester in the design of energy technology systems. In my presentation, I will give a description of the project, and the thoughts behind; pedagogic-didactic as...... well as technical and professional considerations. The project is presently a permanent part of the 4th semester and counts as one third of the semester. The semester's theme is Energy-and System Design. Content on 4th semester is organized in light of which skills an engineer must possess in the field...

  12. ASSESSMENT OF 4TH GRADE GEOGRAPHY TEXT BOOKS

    IOANA CHIRCEV; LILIANA CIASCAI; OANA-RAMONA ILOVAN

    2015-01-01

    Our study presents the analysis results of five 4th grade Geography text books. We realised the analysis taking into account the following: the quality of scientific content, the didactic processing of scientific content, the quality of editing, and that of figures. Results showed that those text books, despite observing the current school curriculum, had the following deficiencies: insufficient didactic processing of contents, lack ...

  13. FOTON Motor Crowns 4th China Auto International Circuit Exhibition

    Wu; Yan

    2005-01-01

      In order to provide more opportuni ties for the high-developing Chinese auto industry including autos and motos to do export, and to enlarge the international influence of Chinese cars,the 4th China Auto International Circuit Exhibition will be held in Syria. The exhibition has been held for three times.……

  14. FOTON Motor Crowns 4th China Auto International Circuit Exhibition

    Wu Yan

    2005-01-01

    @@ In order to provide more opportuni ties for the high-developing Chinese auto industry including autos and motos to do export, and to enlarge the international influence of Chinese cars,the 4th China Auto International Circuit Exhibition will be held in Syria. The exhibition has been held for three times.

  15. Weekly Report for June 4th-8th

    Peter Zong

    2007-01-01

    @@ After hitting its historical high in the week May 28th-June 1st, the index of Shanghai Stock market and Shenzhen Stock market touched the recent bottom in the week (June 4th-8th) and rebounded with a weekly increase of 0.57% and 1.21% respectively.

  16. Validation of CO 4th positive radiation for Mars entry

    This paper presents measurements and simulations of CO 4th Positive equilibrium radiation obtained in the NASA Ames Research Center's Electric Arc Shock Tube (EAST) facility. The experiments were aimed at measuring the level of radiation encountered during conditions relevant to high-speed entry into a simulated Martian atmosphere (96% CO2: 4% N2). The facility was configured to target several ranges of nominal Mars entry conditions, of which 7.35 km/s at 0.1 Torr (13.3 Pa), 6.2–8 km/s at 0.25 Torr (33 Pa) and 7.1–7.8 km/s at 1 Torr (133 Pa) are examined in this paper. The CO 4th Positive system was chosen to be the focus of this study as it accounts for a large percentage of the emitted radiation for Martian entry, and also due to the difficulties of obtaining experimental validation data due to the emission appearing in the Vacuum Ultra Violet (VUV) spectral range. The focus of this paper is to provide a comprehensive comparison between the EAST data and various CO 4th Positive databases available in the literature. The analysis endeavors to provide a better understanding of the uncertainty in the measurements and quantifies the level of agreement found between simulations and experimental data. The results of the analysis show that the magnitude of the CO 4th Positive radiative intensity is very sensitive to the flow temperature. Subsequently, simulations using thermodynamic equilibrium generally under-predict the experimental data by approximately a factor of up to 2. However, when simulations are performed using a flow temperature extracted from the black body limited portion of the CO 4th Positive spectra taken from experiment, the agreement between the EAST data and simulations is generally very good. Furthermore, comparisons of experimental data and simulations across other spectral regions provide additional support for the use of the black body temperature. -- Highlights: ► Measurements and simulations of CO 4th Positive radiation are presented.

  17. Virtual Visit to the ATLAS Control Room by Greek Physical Society Annual Student Meeting

    2013-01-01

    In a continuation of last years` efforts, The Hellenic Union of Physicists organises for the 5th consecutive year its annual meeting for high-performing students across Greece. In this creative thinking meeting, students will have an excellent opportunity to acquire an in-depth understanding in contemporary physics issues and topics as well as in modern scientific knowledge and thinking in general. Moreover, they will be introduced to modern scientific methods and will practice critical thinking via live interaction with distinctive physicists. During this meeting, students will also connect live to the ATLAS control room to talk to a Greek physicist and learn about latest developments from the world`s largest physics laboratory.

  18. Studies of Higgs and flavour physics at the high pT frontier (top & FCNC) with ATLAS

    Schaarschmidt, Jana; The ATLAS collaboration

    2016-01-01

    The studies performed by ATLAS in the sector of flavour physics in the high-pT range will be discussed, including FCNC in top decays involving coupling to gamma, Z, and Higgs, single top production, and lepton-flavour violation in Higgs decays.

  19. Physics performances with the new ATLAS Level-1 Topological trigger in Run 2

    Artz, Sebastian; The ATLAS collaboration

    2016-01-01

    The ATLAS trigger system aims at reducing the 40 MHz proton-proton collision event rate to a manageable event storage rate of 1 kHz, preserving events valuable for physics analysis. The Level-1 trigger is the first rate-reducing step in the ATLAS trigger system, with an output rate of 100 kHz and decision latency of less than 2.5 micro seconds. It is composed of the calorimeter trigger, muon trigger and central trigger processor. During the last upgrade, a new electronics element was introduced to Level-1: The Topological Processor System. It will make it possible to use detailed realtime information from the Level-1 calorimeter and muon triggers, processed in individual state of the art FPGA processors to determine angles between jets and/or leptons and calculate kinematic variables based on lists of selected/sorted objects. More than one hundred VHDL algorithms are producing trigger outputs to be incorporated into the central trigger processor. This information will be essential to improve background reject...

  20. 3D silicon pixel detectors for the ATLAS Forward Physics experiment

    Lange, Jörn; Grinstein, Sebastian; Paz, Ivan Lopez

    2015-01-01

    The ATLAS Forward Physics (AFP) project plans to install 3D silicon pixel detectors about 210 m away from the interaction point and very close to the beamline (2-3 mm). This implies the need of slim edges of about 100-200 $\\mu$m width for the sensor side facing the beam to minimise the dead area. Another challenge is an expected non-uniform irradiation of the pixel sensors. It is studied if these requirements can be met using slightly-modified FE-I4 3D pixel sensors from the ATLAS Insertable B-Layer production. AFP-compatible slim edges are obtained with a simple diamond-saw cut. Electrical characterisations and beam tests are carried out and no detrimental impact on the leakage current and hit efficiency is observed. For devices without a 3D guard ring a remaining insensitive edge of less than 15 $\\mu$m width is found. Moreover, 3D detectors are non-uniformly irradiated up to fluences of several 10$^{15}$ n$_{eq}$/cm$^2$ with either a focussed 23 GeV proton beam or a 23 MeV proton beam through holes in Al ma...

  1. Particle Physics and Astronomy Research Council (PPARC) members, United Kingdom, visiting the ATLAS semiconductor tracker (SCT) module tests.

    Patrice Loïez

    2002-01-01

    Photo 01: Mr Peter Warry, PPARC Chairman, Victrex Plc, United Kingdom visiting the ATLAS SCT module tests with Dr Joleen Pater, SCT (Manchester). Photo 02: PPARC Council Members, United Kingdom, visiting the ATLAS SCT module tests. L.t to r.: Mrs Judith Scott, Chief Executive, British Computer Society, Prof. George Efstathiou, Institute of Astronomy, University of Cambridge, Mr Peter Warry, PPARC Chairman, Victrex Plc, Prof. Martin Ward, Director X-Ray Astronomy, of Leicester, Prof. James Stirling, Director, Institute for Particle Physics Phenomenology, University of Durham and Prof. Brian Foster, University of Bristol.

  2. CP violation physics in B-decays, highlights from the GPDs ( ATLAS and CMS): analysis for Bs → J/ψφ.

    Smizanska, M; The ATLAS collaboration

    2014-01-01

    CP violation physics in B-decays - highlights from the GPDs, ATLAS and CMS are given. Details are presented for time-dependent CP violation studies in Bs → J/ψφ using 2011 data and potential for Run2 based on ATLAS simulations is presented.

  3. MSSM4G: Reviving Bino Dark Matter with Vector-like 4th Generation Particles

    Abdullah, Mohammad

    2016-01-01

    We supplement the minimal supersymmetric standard model (MSSM) with vector-like copies of standard model particles. Such 4th generation particles can raise the Higgs boson mass to the observed value without requiring very heavy superpartners, improving naturalness and the prospects for discovering supersymmetry at the LHC. Here we show that these new particles are also motivated cosmologically: in the MSSM, pure Bino dark matter typically overcloses the Universe, but 4th generation particles open up new annihilation channels, allowing Binos to have the correct thermal relic density without resonances or co-annihilation. We show that this can be done in a sizable region of parameter space while preserving gauge coupling unification and satisfying constraints from collider, Higgs, precision electroweak, and flavor physics.

  4. 4th June: AIS and NICE/MAIL unique authentication

    The AIS and NICE teams

    2007-01-01

    Over the past few years, the IT department has been in the process of streamlining CERN users' access to all central computing services. The long term goal is to converge on a unique computer account, which will increase computer security and simplify account maintenance. The next step of this process will occur on the 4th June 2007, as of when authenticating on the AIS applications (EDH, HRT, CET, APT, ERT, CRA, Foundation, ...) and on NICE (Windows) and MAIL will be done using the same username and password. As a reminder, this account can also be used on EDMS, INDICO, CDS and SIMBA. Thus starting on the 4th June 2007, authentication on the AIS applications must be done using your AIS username and your MAIL/NICE password. Thanks for your understanding, The AIS and NICE teams

  5. 4th June: AIS and NICE/MAIL unique authentication

    AIS and NICE teams

    2007-01-01

    Over the past few years, the IT department has been in the process of streamlining CERN users' access to all central computing services. The long term goal is to converge on a unique computer account, which will increase computer security and simplify account maintenance. The next step of this process will occur on 4th June 2007, as of when authenticating on the AIS applications (EDH, HRT, CET, APT, ERT, CRA, Foundation, ...) and on NICE (Windows) and MAIL will be done using the same username and password. As a reminder, this account can also be used on EDMS, INDICO, CDS and SIMBA. So starting on 4th June 2007, authentication on the AIS applications must be done using your AIS username and your MAIL/NICE password. Thanks for your understanding, The AIS and NICE teams

  6. Switched Current Micropower 4th Order Lowpass / Highpass Filter

    Bogason, Gudmundur

    1993-01-01

    This paper describes a 4th order lowpass / highpass Butterworth filter implemented in switched current technique. The filter has been designed for low power operation. A prototype implementation has been made and it operates with supply voltages down to 2V and with a total supply current of 211Â......¿A at a sampling rate of 50kHz. The chip includes a clock-generator, three current-followers, sample-and-hold and two 4th order filters. The sampling frequency is restricted to approximately 50kHz and the ratio between sampling frequency and cutoff frequency is 12.5. The dynamic-range was found to be 49...

  7. 4th International Conference on Communications, Signal Processing, and Systems

    Mu, Jiasong; Wang, Wei; Zhang, Baoju

    2016-01-01

    This book brings together papers presented at the 4th International Conference on Communications, Signal Processing, and Systems, which provides a venue to disseminate the latest developments and to discuss the interactions and links between these multidisciplinary fields. Spanning topics ranging from Communications, Signal Processing and Systems, this book is aimed at undergraduate and graduate students in Electrical Engineering, Computer Science and Mathematics, researchers and engineers from academia and industry as well as government employees (such as NSF, DOD, DOE, etc).

  8. 4th International Plant Biomechanics Conference Proceedings (Abstracts)

    Frank W. Telewski; Lothar H. Koehler; Frank W. Ewers

    2003-07-20

    The 4th International Plant Biomechanics Conference facilitated an interdisciplinary exchange between scientists, engineers, and educators addressing the major questions encountered in the field of Plant Biomechanics. Subjects covered by the conference include: Evolution; Ecology; Mechanoreception; Cell Walls; Genetic Modification; Applied Biomechanics of Whole Plants, Plant Products, Fibers & Composites; Fluid Dynamics; Wood & Trees; Fracture Mechanics; Xylem Pressure & Water Transport; Modeling; and Introducing Plant Biomechanics in Secondary School Education.

  9. Rate of Missing Socioeconomic Factors in the 4th KNHANES

    Park, Hyun Ah

    2012-01-01

    This study is to assess how missing values in socioeconomic status (SES) variables were handled in the Korean Journal of Family Medicine (KJFM) article using the Korea National Health and Nutrition Examination Survey (KNHANES) data and to estimate the rate of missing SES variables from the 4th KNHANES. We searched all original articles published in the KJFM from 2007 to 2011 and identified those that used KNHANES as their primary source of data. None of the 11 articles which presented KNHANES...

  10. Regional Fisheries Advisory Committee 4th February, 1980.

    1980-01-01

    This is the report from the Regional Fisheries Advisory Committee meeting, which was held on the 4th February 1980. The report contains the minutes of the Local Fisheries Advisory Committees, net and fixed engine licence duties, net limitation order for the River Lune and River Wyre and fishery byelaws for the River Lune. The Fisheries Advisory Committee was part of the Regional Water Authorities, in this case the North West Water Authority. This preceded the Environment Agency which ca...

  11. Searches for new physics in high-mass fermionic final states and jets with the ATLAS detector at the LHC

    Viazlo, Oleksandr; The ATLAS collaboration

    2016-01-01

    Many new physics scenarios beyond the Standard Model predict resonant or non-resonant production of high-transverse momentum fermions or gluons. The high-mass resonant production of bottom-quark pairs is also a good benchmark process for high-pT b-quark tagging. This talk summarizes Run 2 searches for new physics in fermionic final states and jets at the ATLAS experiment in LHC.

  12. Measuring the Standard Model and Searching for New Physics Using the ATLAS Detector

    AUTHOR|(SzGeCERN)671949

    Collisions at the Large Hadron Collider have offered an unprecedented window into some of the high- est energy scales ever observed in experiments. Understanding these collisions, especially those that produce particles charged under quantum chromodynamics (QCD), requires a deep understanding of jets: the collimated sprays of particles produced by the parton shower and hadronization pro- cesses which emerge from the asymptotic freedom of QCD. Recent theoretical advances and the unprecedented capabilities of the ATLAS detector have enabled a new class of jet physics measure- ments based on the internal structure of jets, referred to as jet substructure. Three new types of measurements relying on jet substructure are presented. The first is a set of measurements sensitive which can discriminate between jets initiated by quarks and gluons. Separation is possible by studying variables sensitive to the magnitude of the color charge. Several such variables are measured, and a data-driven technique is used to constr...

  13. Searching for New Physics with Top Quarks and Upgrade to the Muon Spectrometer at ATLAS

    Schwarz, Thomas Andrew

    2015-06-29

    Over the funding period of this award, my research has focused on searching for new physics with top quarks and in the Higgs sector. The highly energetic top quark events at the LHC are an excellent venue to search for new physics, as well as make standard model measurements. Further, the recent discovery of the Higgs boson motivates searching for new physics that could be associated with it. This one-year award has facilitated the beginning of my research program, which has resulted in four publications, several conference talks, and multiple leadership positions within physics groups. Additionally, we are contributing to ATLAS upgrades and operations. As part of the Phase I upgrade, I have taken on the responsibility of the design, prototyping, and quality control of a signal packet router for the trigger electronics of the New Small Wheel. This is a critical component of the upgrade, as the router is the main switchboard for all trigger signals to track finding processors. I am also leading the Phase II upgrade of the readout electronics of the muon spectrometer, and have been selected as the USATLAS Level-2 manager of the Phase II upgrade of the muon spectrometer. The award has been critical in these contributions to the experiment.

  14. 3D silicon pixel detectors for the ATLAS Forward Physics experiment

    The ATLAS Forward Physics (AFP) project plans to install 3D silicon pixel detectors about 210 m away from the interaction point and very close to the beamline (2–3 mm). This implies the need of slim edges of about 100–200 μm width for the sensor side facing the beam to minimise the dead area. Another challenge is an expected non-uniform irradiation of the pixel sensors. It is studied if these requirements can be met using slightly-modified FE-I4 3D pixel sensors from the ATLAS Insertable B-Layer production. AFP-compatible slim edges are obtained with a simple diamond-saw cut. Electrical characterisations and beam tests are carried out and no detrimental impact on the leakage current and hit efficiency is observed. For devices without a 3D guard ring a remaining insensitive edge of less than 15 μm width is found. Moreover, 3D detectors are non-uniformly irradiated up to fluences of several 1015 neq/cm2 with either a focussed 23 GeV proton beam or a 23 MeV proton beam through holes in Al masks. The efficiency in the irradiated region is found to be similar to the one in the non-irradiated region and exceeds 97% in case of favourable chip-parameter settings. Only in a narrow transition area at the edge of the hole in the Al mask, a significantly lower efficiency is seen. A follow-up study of this effect using arrays of small pad diodes for position-resolved dosimetry via the leakage current is carried out

  15. 4th International Conference on Soft Computing for Problem Solving

    Deep, Kusum; Pant, Millie; Bansal, Jagdish; Nagar, Atulya

    2015-01-01

    This two volume book is based on the research papers presented at the 4th International Conference on Soft Computing for Problem Solving (SocProS 2014) and covers a variety of topics, including mathematical modelling, image processing, optimization methods, swarm intelligence, evolutionary algorithms, fuzzy logic, neural networks, forecasting, medical and healthcare, data mining, etc. Mainly the emphasis is on Soft Computing and its applications in diverse areas. The prime objective of this book is to familiarize the reader with the latest scientific developments in various fields of Science, Engineering and Technology and is directed to the researchers and scientists engaged in various real-world applications of ‘Soft Computing’.

  16. Muon identification and pion rejection in the 4th concept

    John Haupton

    2007-12-01

    We describe a completely new way to reconstruct and identify muons with high efficiency and very high pion rejection in the 4th concept detector. The dual-solenoid magnetic field allows the reconstruction and precision momentum measurement of muons down to a few GeV (just the energy loss in the 10-int calorimeter and the coil) and the dual-readout calorimeter provides a new, unique and powerful separation of muons from pions. We use test beam data for the calorimeter and calculations for the magnetic fields

  17. ASSESSMENT OF 4TH GRADE GEOGRAPHY TEXT BOOKS

    IOANA CHIRCEV

    2015-01-01

    Full Text Available Our study presents the analysis results of five 4th grade Geography text books. We realised the analysis taking into account the following: the quality of scientific content, the didactic processing of scientific content, the quality of editing, and that of figures. Results showed that those text books, despite observing the current school curriculum, had the following deficiencies: insufficient didactic processing of contents, lack of relevant figures and of correlating maps with the written text, poor graphic quality and contents errors, the last one being a very serious problem. Solving those problems could be done through close collaborations between authors, reviewers, and the editing houses.

  18. ATLAS Virtual Visit Corinth 26.11.2014

    2015-01-01

    Students of the 4th Lyceum of Corinth and teachers from Corinthia's prefecture, will take part to an ATLAS Masterclass organized by physicists of the University of Athens, the Institute of Accelerator Systems & Applications and the Ellinogermaniki School.

  19. Physical conditions of the interstellar medium of high-redshift, strongly lensed submillimetre galaxies from the Herschel-ATLAS

    Valtchanov, Ivan; Ivison, R J; Swinyard, B; van der Werf, P; Rigopoulou, D; da Cunha, E; Lupu, R; Benford, D J; Riechers, D; Smail, Ian; Jarvis, M; Pearson, C; Gomez, H; Hopwood, R; Altieri, B; Birkinshaw, M; Coia, D; Conversi, L; Cooray, A; De Zotti, G; Dunne, L; Frayer, D; Leeuw, L; Marston, A; Negrello, M; Portal, M Sanchez; Scott, D; Thompson, M A; Vaccari, M; Baes, M; Clements, D; Michalowski, M J; Dannerbauer, H; Serjeant, S; Auld, R; Buttiglione, S; Cava, A; Dariush, A; Dye, S; Eales, S; Fritz, J; Ibar, E; Maddox, S; Pascale, E; Pohlen, M; Rigby, E; Rodighiero, G; Smith, D J B; Temi, P; Carpenter, J; Bolatto, A; Gurwell, M

    2011-01-01

    We present Herschel-SPIRE Fourier Transform Spectrometer (FTS) and radio follow-up observations of two Herschel-ATLAS (H-ATLAS) detected strongly lensed distant galaxies. In one of the targeted galaxies H-ATLAS J090311.6+003906 (SDP.81) we detect [OIII] 88\\mum and [CII] 158\\mum lines at a signal-to-noise ratio of ~5. We do not have any positive line identification in the other fainter target H-ATLAS J091305.0-005343 (SDP.130). Currently SDP.81 is the faintest sub-mm galaxy with positive line detections with the FTS, with continuum flux just below 200 mJy in the 200-600 \\mum wavelength range. The derived redshift of SDP.81 from the two detections is z=3.043 +/-0.012, in agreement with ground-based CO measurements. This is the first detection by Herschel of the [OIII] 88\\mum line in a galaxy at redshift higher than 0.05. Comparing the observed lines and line ratios with a grid of photo-dissociation region (PDR) models with different physical conditions, we derive the PDR cloud density n ~ 2000 cm^{-3} and the f...

  20. Searching possibilities of a composite structure of quarks from the jet studies in the ATLAS experiment: physical and experimental aspects

    This thesis presents the searching possibilities of a composite structure of quark from the jet studies in the ATLAS experiment. ATLAS is one of the major detectors on the LHC, the next proton-proton collider at CERN. The general physic framework of the quark compositeness is first introduced, the its expected search from the contact terms in the channel 2 → 2 is explained. After a description of the ATLAS apparatus and of the prototype of the hadronic scintillating tiles calorimeter, various experimental properties of the hadron calorimeter with respect to the jet measurement are studied. The effect of the non-linearity of the calorimeter response is particularly discussed, including the light red out with the photomultipliers. The laser monitoring system enables a full control of the gain stability of the photomultipliers and of their non-linearity for large signals. Its design and the measured performance are shown. Finally, by considering both the expected performances of the ATLAS detector and the theoretical uncertainties, it appears that the compositeness scale controlled at the LHC, for quarks, should reach 15 to 20 TeV depending upon the luminosity, from jet measurement up to 3 TeV. (author)

  1. 4th International Conference in Software Engineering for Defence Applications

    Sillitti, Alberto; Succi, Giancarlo; Messina, Angelo

    2016-01-01

    This book presents high-quality original contributions on new software engineering models, approaches, methods, and tools and their evaluation in the context of defence and security applications. In addition, important business and economic aspects are discussed, with a particular focus on cost/benefit analysis, new business models, organizational evolution, and business intelligence systems. The contents are based on presentations delivered at SEDA 2015, the 4th International Conference in Software Engineering for Defence Applications, which was held in Rome, Italy, in May 2015. This conference series represents a targeted response to the growing need for research that reports and debates the practical implications of software engineering within the defence environment and also for software performance evaluation in real settings through controlled experiments as well as case and field studies. The book will appeal to all with an interest in modeling, managing, and implementing defence-related software devel...

  2. Proceedings of the 4th workshop on WENDELSTEIN 7-X

    The 4th Workshop on WENDELSTEIN 7-x (28.-31.10.1991) treated the following topics: Coil System (optimization; ripple transport; magnetic fields, forces, stresses; analytic stellarator fields) - equilibrium and stability (computations; equilibrium with dissipation; global MHD stability; resistive ballooning modes) - transport and neutral gas (Pfirsch-Schlueter currents and anomalous transport; general solution of the ripple-averaged equation; the EIRENE neutral gas transport codes; application of DEGAS; CX-losses at NBI) - plasma parameters (alpha particle confinement in stellarators; the radical electric field in W 7) - divertor (structure of the magnetic field line diversion in Helias configurations; divertor studies for W 7; sweep coil system; the island divertor; one-dimensional fluid model and investigation of the plasma boundary layer) - engineering (W 7 status of planning; CAD/CAE applications for W 7; structural analysis of the coil system) - reactor (the Helias reactor) - concluding discussion. (AH)

  3. 4th International Conference on Frontiers in Global Optimization

    Pardalos, Panos

    2004-01-01

    Global Optimization has emerged as one of the most exciting new areas of mathematical programming. Global optimization has received a wide attraction from many fields in the past few years, due to the success of new algorithms for addressing previously intractable problems from diverse areas such as computational chemistry and biology, biomedicine, structural optimization, computer sciences, operations research, economics, and engineering design and control. This book contains refereed invited papers submitted at the 4th international confer­ ence on Frontiers in Global Optimization held at Santorini, Greece during June 8-12, 2003. Santorini is one of the few sites of Greece, with wild beauty created by the explosion of a volcano which is in the middle of the gulf of the island. The mystic landscape with its numerous mult-extrema, was an inspiring location particularly for researchers working on global optimization. The three previous conferences on "Recent Advances in Global Opti­ mization", "State-of-the-...

  4. Coding Theory and Applications : 4th International Castle Meeting

    Malonek, Paula; Vettori, Paolo

    2015-01-01

    The topics covered in this book, written by researchers at the forefront of their field, represent some of the most relevant research areas in modern coding theory: codes and combinatorial structures, algebraic geometric codes, group codes, quantum codes, convolutional codes, network coding and cryptography. The book includes a survey paper on the interconnections of coding theory with constrained systems, written by an invited speaker, as well as 37 cutting-edge research communications presented at the 4th International Castle Meeting on Coding Theory and Applications (4ICMCTA), held at the Castle of Palmela in September 2014. The event’s scientific program consisted of four invited talks and 39 regular talks by authors from 24 different countries. This conference provided an ideal opportunity for communicating new results, exchanging ideas, strengthening international cooperation, and introducing young researchers into the coding theory community.

  5. 4th International Conference on Sustainable Automotive Technologies

    Wellnitz, Jörg; Leary, Martin; Koopmans, Lucien

    2012-01-01

    The book on Sustainable Automotive Technologies aims to draw special attention to the research and practice focused on new technologies and approaches capable of meeting the challenges to sustainable mobility. In particular, the book features incremental and radical technical advancements that are able to meet social, economic and environmental targets in both local and global contexts. These include original solutions to the problems of pollution and congestion, vehicle and public safety, sustainable vehicle design and manufacture, new structures and materials, new power-train technologies and vehicle concepts. In addition to vehicle technologies, the book is also concerned with the broader systemic issues such as sustainable supply chain systems, integrated logistics and telematics, and end-of-life vehicle management. It captures selected peer reviewed papers accepted for presentation at the 4th International Conference on Sustainable Automotive Technologies, ICSAT2012, held at the RMIT, Melbourne, Australi...

  6. 4th International Conference on Dynamics in Logistics

    Pannek, Jürgen; Thoben, Klaus-Dieter

    2016-01-01

    This contributed volume brings together research papers presented at the 4th International Conference on Dynamics in Logistics, held in Bremen, Germany in February 2014. The conference focused on the identification, analysis and description of the dynamics of logistics processes and networks. Topics covered range from the modeling and planning of processes, to innovative methods like autonomous control and knowledge management, to the latest technologies provided by radio frequency identification, mobile communication, and networking. The growing dynamic poses wholly new challenges: logistics processes and networks must be(come) able to rapidly and flexibly adapt to constantly changing conditions. The book primarily addresses the needs of researchers and practitioners from the field of logistics, but will also be beneficial for graduate students.

  7. 4th Workshop on Combinations of Intelligent Methods and Applications

    Palade, Vasile; Prentzas, Jim

    2016-01-01

    This volume includes extended and revised versions of the papers presented at the 4th Workshop on “Combinations of Intelligent Methods and Applications” (CIMA 2014) which was intended to become a forum for exchanging experience and ideas among researchers and practitioners dealing with combinations of different intelligent methods in Artificial Intelligence. The aim is to create integrated or hybrid methods that benefit from each of their components. Some of the existing presented efforts combine soft computing methods (fuzzy logic, neural networks and genetic algorithms). Another stream of efforts integrates case-based reasoning or machine learning with soft-computing methods. Some of the combinations have been more widely explored, like neuro-symbolic methods, neuro-fuzzy methods and methods combining rule-based and case-based reasoning. CIMA 2014 was held in conjunction with the 26th IEEE International Conference on Tools with Artificial Intelligence (ICTAI 2014). .

  8. 4th International Conference on Research into Design

    Prakash, Raghu V; ICoRD'13 : global product development

    2013-01-01

    This book showcases over 100 cutting-edge research papers from the 4th International Conference on Research into Design (ICoRD’13) – the largest in India in this area – written by eminent researchers from over 20 countries, on the design process, methods and tools, for supporting global product development (GPD). The special features of the book are the variety of insights into the GPD process, and the host of methods and tools at the cutting edge of all major areas of design research for its support. The main benefit of this book for researchers in engineering design and GPD are access to the latest quality research in this area; for practitioners and educators, it is exposure to an empirically validated suite of methods and tools that can be taught and practiced.

  9. 4th International Conference on Computer Engineering and Networks

    2015-01-01

    This book aims to examine innovation in the fields of computer engineering and networking. The book covers important emerging topics in computer engineering and networking, and it will help researchers and engineers improve their knowledge of state-of-art in related areas. The book presents papers from the 4th International Conference on Computer Engineering and Networks (CENet2014) held July 19-20, 2014 in Shanghai, China.  ·       Covers emerging topics for computer engineering and networking ·       Discusses how to improve productivity by using the latest advanced technologies ·       Examines innovation in the fields of computer engineering and networking  

  10. 2015 4th China Academic Conference on Printing and Packaging

    Xu, Min; Yang, Li; Ouyang, Yujie

    2016-01-01

    This book includes a selection of reviewed papers presented at the 2015, 4th China Academic Conference on Printing and Packaging, which was held on October 22-24, 2015 in Hangzhou, China. The conference was jointly organized by the China Academy of Printing Technology, Beijing Institute of Graphic Communication, and Hangzhou Dianzi University. With 3 keynote talks and 200 presented papers on graphic communications, packaging technologies and materials, the conference attracted more than 400 scientists.  These proceedings cover the recent research outcomes on color science and technology, image-processing technology, digital-media technology, printing-engineering technology, packaging-engineering technology etc. They will be of interest to university researchers, R&D engineers and graduate students in graphic communications, packaging, color science, image science, materials science, computer science, digital media and network technology fields.

  11. Human behaviour towards climatic change during the 4th millennium BC in the Swiss Alpine forelands

    Karg, Sabine

    Human behaviour towards climatic change during the 4th millennium BC in the Swiss Alpine forelands.......Human behaviour towards climatic change during the 4th millennium BC in the Swiss Alpine forelands....

  12. Beam test studies of 3D pixel sensors irradiated non-uniformly for the ATLAS forward physics detector

    Pixel detectors with cylindrical electrodes that penetrate the silicon substrate (so called 3D detectors) offer advantages over standard planar sensors in terms of radiation hardness, since the electrode distance is decoupled from the bulk thickness. In recent years significant progress has been made in the development of 3D sensors, which culminated in the sensor production for the ATLAS Insertable B-Layer (IBL) upgrade carried out at CNM (Barcelona, Spain) and FBK (Trento, Italy). Based on this success, the ATLAS Forward Physics (AFP) experiment has selected the 3D pixel sensor technology for the tracking detector. The AFP project presents a new challenge due to the need for a reduced dead area with respect to IBL, and the in-homogeneous nature of the radiation dose distribution in the sensor. Electrical characterization of the first AFP prototypes and beam test studies of 3D pixel devices irradiated non-uniformly are presented in this paper

  13. Beam test studies of 3D pixel sensors irradiated non-uniformly for the ATLAS forward physics detector

    Grinstein, S., E-mail: sgrinstein@ifae.es [ICREA and Institut de Física d' Altes Energies (IFAE), Barcelona (Spain); Baselga, M. [Centro Nacional de Microelectronica, CNM-IMB (CSIC), Barcelona (Spain); Boscardin, M. [Fondazione Bruno Kessler, FBK-CMM, Trento (Italy); Christophersen, M. [U.S. Naval Research Laboratory, Washington (United States); Da Via, C. [School of Physics and Astronomy, University of Manchester, Manchester (United Kingdom); Dalla Betta, G.-F. [Universita degli Studi di Trento and INFN, Trento (Italy); Darbo, G. [INFN Sezione di Genova, Genova (Italy); Fadeyev, V. [Santa Cruz Institute for Particle Physics, University of California, Santa Cruz (United States); Fleta, C. [Centro Nacional de Microelectronica, CNM-IMB (CSIC), Barcelona (Spain); Gemme, C. [Universita degli Studi di Trento and INFN, Trento (Italy); Grenier, P. [SLAC National Accelerator Laboratory, Menlo Park (United States); Jimenez, A.; Lopez, I.; Micelli, A. [ICREA and Institut de Física d' Altes Energies (IFAE), Barcelona (Spain); Nelist, C. [INFN Sezione di Genova, Genova (Italy); Parker, S. [University of Hawaii, c/o Lawrence Berkeley Laboratory, Berkeley (United States); Pellegrini, G. [Centro Nacional de Microelectronica, CNM-IMB (CSIC), Barcelona (Spain); Phlips, B. [U.S. Naval Research Laboratory, Washington (United States); Pohl, D.-L. [University of Bonn, Bonn (Germany); Sadrozinski, H.F.-W. [Santa Cruz Institute for Particle Physics, University of California, Santa Cruz (United States); and others

    2013-12-01

    Pixel detectors with cylindrical electrodes that penetrate the silicon substrate (so called 3D detectors) offer advantages over standard planar sensors in terms of radiation hardness, since the electrode distance is decoupled from the bulk thickness. In recent years significant progress has been made in the development of 3D sensors, which culminated in the sensor production for the ATLAS Insertable B-Layer (IBL) upgrade carried out at CNM (Barcelona, Spain) and FBK (Trento, Italy). Based on this success, the ATLAS Forward Physics (AFP) experiment has selected the 3D pixel sensor technology for the tracking detector. The AFP project presents a new challenge due to the need for a reduced dead area with respect to IBL, and the in-homogeneous nature of the radiation dose distribution in the sensor. Electrical characterization of the first AFP prototypes and beam test studies of 3D pixel devices irradiated non-uniformly are presented in this paper.

  14. Beam Test Studies of 3D Pixel Sensors Irradiated Non-Uniformly for the ATLAS Forward Physics Detector

    Grinstein, S; Boscardin, M; Christophersen, M; Da Via, C; Betta, G -F Dalla; Darbo, G; Fadeyev, V; Fleta, C; Gemme, C; Grenier, P; Jimenez, A; Lopez, I; Micelli, A; Nelist, C; Parker, S; Pellegrini, G; Phlips, B; Pohl, D L; Sadrozinski, H F -W; Sicho, P; Tsiskaridze, S

    2013-01-01

    Pixel detectors with cylindrical electrodes that penetrate the silicon substrate (so called 3D detectors) offer advantages over standard planar sensors in terms of radiation hardness, since the electrode distance is decoupled from the bulk thickness. In recent years significant progress has been made in the development of 3D sensors, which culminated in the sensor production for the ATLAS Insertable B-Layer (IBL) upgrade carried out at CNM (Barcelona, Spain) and FBK (Trento, Italy). Based on this success, the ATLAS Forward Physics (AFP) experiment has selected the 3D pixel sensor technology for the tracking detector. The AFP project presents a new challenge due to the need for a reduced dead area with respect to IBL, and the in-homogeneous nature of the radiation dose distribution in the sensor. Electrical characterization of the first AFP prototypes and beam test studies of 3D pixel devices irradiated non-uniformly are presented in this paper.

  15. The nature of the 4th track in GX 5-1: discovery of Fe XXVI RRC in massive flares

    Church, M J; Peach, C; Balucinska-Church, M

    2009-01-01

    We present an explanation of the 4th branch of the Z-track based on analysis of high-quality RXTE data on the source GX 5-1. Spectral analysis shows that the physical evolution on the 4th track is a continuation of the flaring branch which we previously proposed consists of unstable nuclear burning of the accretion flow on the neutron star. In flaring there is a huge increase of the neutron star emission from a volume that increases to a radius of 21 km. The 4th branch is shown to consist of flaring under conditions that the mass accretion rate and thus the total source luminosity is falling. We detect strong emission on the flaring and 4th branches at energies between 7.8 - 9.4 keV inconsistent with origin as Fe K emission, which we suggest is the radiative recombination continua (RRC) of iron Fe XXVI at 9.28 keV and of lower states. Evolution of the emission takes place, the energy falling but the flux increasing strongly, consistent with production in the large volume of unstable nuclear burning around the...

  16. The 4th international colloquium on process simulation. Proceedings

    Jokilaakso, A. [Helsinki Univ. of Technology, Otaniemi (Finland). Dept. of Materials Science and Metallurgy

    1997-12-31

    The papers collected in this volume were presented at the 4th Colloquium on Process Simulation held at Helsinki University of Technology, Espoo, Finland, June 11-13, 1997. In the more developed industrial nations, the processes for producing chemicals, energy, and materials encounter environmental concern and laws which challenge engineers to develop the processes towards more efficient, economical and safe operation. This necessitates more thorough understanding of the processes and phenomena involved. Formerly, the development of the processes was largely based on trial and error, whereas today, the development of computer performance together with the diversification of modelling software enables simulation of the processes. The increased capacity and possibilities for modelling the processes brought by the improved hardware and software, have generated a strong demand for more accurate mathematical descriptions of the processes. Especially, the coupling of computational fluid dynamics and chemical kinetics, combustion, and thermodynamics is of current interest in process oriented technology. This colloquium attempts to give examples of modelling efforts in operation in different universities, research institutes and companies. Furthermore, the aim of this colloquium is to offer an annual opportunity to the researchers to come together and discuss their common problems and the state of their investigations

  17. 4th annual Safety Day: full of colour!

    HSE Unit

    2014-01-01

    On Thursday 10 April, more than 240 people took part in the 4th annual Safety Day, organised on the occasion of the World Day for Safety and Health at Work. The HSE Unit, in partnership with the Fire Brigade (GS/FB) and the TE and BE Departments, organised various stands and activities connected with this year’s theme, chosen by the International Labour Organization: "Safety and health in the use of chemicals at work”.   The stands, set up at lunchtime in all three of CERN’s restaurants as well as in the entrance hall of Building 500, were designed to: Remind visitors of the need to use personal protective equipment appropriate to the chemicals they are using; Make visitors aware of the potential environmental impact of using chemicals; Encourage visitors to always read the labels and safety data sheets of dangerous chemicals and everyday domestic products; Inform visitors that a safety training course called “Chemical Risk Awareness&r...

  18. The "4th generation", B-CP anomalies & the LHC

    Soni, Amarjit

    2009-01-01

    Attention is drawn to the several 2-3 $\\sigma$ "anomalies" in B, $B_s$ mixings and decays involving CP-observables. Perhaps the most interesting theoretical scenario that could cause such effects is based on warped extra-dimensional models and indeed some of the effects were predicted there. However, a rather simple explanation is that based on a fourth family of quarks with masses in the range of(400 - 600) GeV. The built-in hierarchy of the 4$\\times$4 mixing matrix is such that the $t'$ readily provides a needed {\\it perturbation} ($\\approx 15%$) to $\\sin 2 \\beta$ as measured in $B \\to \\psi K_s$ and simultaneously is the dominant source of CP asymmetry in $B_s \\to \\psi \\phi$. The latter mode is theoretically very clean (unlike the others) and therefore it would be extremely desirable that Fermilab gives a very high priority to clarify this anomaly at the earliest. 4th family explanation allows, with relative ease, to accomodate the stringent flavor changing constraints which usually can be quite challenging...

  19. The 4th Civil Support Team (Weapons of Mass Destruction)

    The 4th CST (WMD) is a 22 person joint staffed AGR (Active Guard Reserve) unit of the Georgia National Guard. The team is one of 55 CSTs that are charged with responding to a CBRNE (Chemical, Biological, Radiological, Nuclear, and High Yield Explosive) incident within the United States and its Territories. The mission statements of the CTS is to support civil authorities at a domestic CBRNE incident by identifying CBRNE agents/substances, assessing current and projected consequences, advising on response measures, and assisting with appropriate requests for state support. The team possesses the capability to deploy by sea, air, and land in response to a terrorist attack or natural disaster. The team is comprised of seven officers and fifteen non-commissioned officers who are cross trained in a variety of military disciplines. Equipment assigned to the team includes an Analytical Lab, Communications Suite, Tactical Operations Center, closed and open circuit breathing gear, portable and handheld detectors, and decon support. The CSts are activated through a state's emergency response network.(author)

  20. 4th French-German Conference on Optimization

    Zowe, Jochem; Hiriart-Urruty, Jean-Baptiste; Lemarechal, Claude

    1988-01-01

    This volume contains a collection of 23 papers presented at the 4th French-German Conference on Optimization, hold at Irsee, April 21 - 26, 1986. The conference was aUended by ninety scientists: about one third from France, from Germany and from third countries each. They all contributed to a highly interesting and stimulating meeting. The scientifique program consisted of four survey lectures of a more tutorical character and of 61 contributed papers covering almost all areas of optimization. In addition two informal evening sessions and a plenary discussion on further developments of optimization theory were organized. One of the main aims of the organizers was to indicate and to stress the increasing importance of optimization methods for almost all areas of science and for a fast growing number of industry branches. We hope that the conference approached this goal in a certain degree and managed to continue fruitful discussions between -theory­ and -applications-. Equally important to the official contri...

  1. European Code against Cancer 4th Edition: Diet and cancer.

    Norat, Teresa; Scoccianti, Chiara; Boutron-Ruault, Marie-Christine; Anderson, Annie; Berrino, Franco; Cecchini, Michele; Espina, Carolina; Key, Tim; Leitzmann, Michael; Powers, Hilary; Wiseman, Martin; Romieu, Isabelle

    2015-12-01

    Lifestyle factors, including diet, have long been recognised as potentially important determinants of cancer risk. In addition to the significant role diet plays in affecting body fatness, a risk factor for several cancers, experimental studies have indicated that diet may influence the cancer process in several ways. Prospective studies have shown that dietary patterns characterised by higher intakes of fruits, vegetables, and whole-grain foods, and lower intakes of red and processed meats and salt, are related to reduced risks of death and cancer, and that a healthy diet can improve overall survival after diagnosis of breast and colorectal cancers. There is evidence that high intakes of fruit and vegetables may reduce the risk of cancers of the aerodigestive tract, and the evidence that dietary fibre protects against colorectal cancer is convincing. Red and processed meats increase the risk of colorectal cancer. Diets rich in high-calorie foods, such as fatty and sugary foods, may lead to increased calorie intake, thereby promoting obesity and leading to an increased risk of cancer. There is some evidence that sugary drinks are related to an increased risk of pancreatic cancer. Taking this evidence into account, the 4th edition of the European Code against Cancer recommends that people have a healthy diet to reduce their risk of cancer: they should eat plenty of whole grains, pulses, vegetables and fruits; limit high-calorie foods (foods high in sugar or fat); avoid sugary drinks and processed meat; and limit red meat and foods high in salt. PMID:26164653

  2. Search for new physics in events with same sign leptons and missing energy with ATLAS at LHC

    AUTHOR|(SzGeCERN)715949; Alexa, Calin

    The Standard Model of particle physics describes the phenomena in the infinitesimal with great success. However, it suffers from several inadequacies~: it can not explain the neutrino masses, it has no candidate for the dark matter and it has no solution for the gauge hierarchy problem, which all require new physics and beyond the Standard Model theories. Such a theory is Supersymmetry (SUSY) and occupies a primer place in the LHC physics program. Here two proton beams are colliding at energies up to 14 TeV and gigantic detectors were built to reconstruct the collision events. For the presented studies only the data recorded with the ATLAS detector is analyzed. More details on the theoretical framework, the LHC collider and the ATLAS experiment are given in the first part of this thesis. At hadron colliders, the lepton identification and reconstruction are crucial for precise SM cross sections and coupling measurements or for new physics searches. Therefore, the second part of my thesis is dedicated to perfo...

  3. Peptic Perforation of the 4th Duodenal Segment. Case Report

    Cimpean Sorin

    2015-03-01

    Full Text Available Introduction: Even if the prevalence of peptic ulcer disease has decreased in the last years, duodenal perforation remains a life threatening complication. The duodenum is the second most common site of gastrointestinal perforations after the colon and perforation of the 4th portion is very rare. Case Presentation: A 67-yers-old man was admitted to the emergency department of the Annecy Hospital with intense abdominal pain, vomiting and no transit for the last 24 hours. The laboratory count showed an inflammatory syndrome. A CT scan revealed free air and fluid near the Treitz’s angle. An exploratory laparotomy was performed that revealed a perforation of the forth portion of the duodenum. A duodenal resection with duodeno-jejunal anastomosis was performed. Discussions: Peptic ulcer disease is a common disease and the perforation is one of its most life threatening complications. The localization of the DP on the forth segment of the duodenum is very unusual. The most frequent localization of DP is the first duodenal segment. Abdominal CT scan is the most sensitive radiological exam if there is suspicion of a DP. A Zollinger-Ellison syndrome must be taken into count. Peritonitis is an indication for immediate laparoscopy or laparotomy, taking into account the patient’s condition. Despite the successful medication therapy and the progress in treatment of duodenal ulcer, perforation remains a serious complication, requiring an emergency surgical treatment. Conclusion: Duodenal perforation of the fourth portion is an extremely rare complication of the peptic ulcer disease and the surgery is the primary modality of treatment.

  4. Natural durability, physical and mechanical properties of Atlas cedar (Cedrus atlantica Manetti) wood from Southern Italy

    Brunetti, Michele; De Capua, Enrico; Nicola MACCHIONI; Monachello, Salvatore

    2001-01-01

    Durabilité naturelle et propriétés physiques et mécaniques du bois de cèdre de l'Atlas (Cedrus atlantica Manetti), de l'Italie du sud. Les auteurs ont étudié la caractérisation technologique du bois de cèdre de l'Atlas qui provient de plantations artificielles de l'Italie du sud. Le cèdre de l'Atlas semble être une des espèces qui pourra obtenir de bons résultats dans la reforestation en Italie du centre et du sud, soit pour sa faculté d'adaptation écologique, soit pour la qualité des arbres ...

  5. Crime rates and sedentary behavior among 4th grade Texas school children

    Hoelscher Deanna M

    2008-05-01

    Full Text Available Abstract Introduction Although per capita crime has generally fallen over the period which coincides with the obesity epidemic, it has not fallen uniformly across communities. It also has not fallen enough to allay fears on the part of parents. Over the past 30 years, technological changes have made the indoor alternatives to playing outside, where children are more vulnerable to criminal activity, more enjoyable (cable TV, video games, and the internet and comfortable (the spread of air conditioning to low income neighborhoods. We determined whether indoor sedentary behavior patterns are associated with community crime statistics. 4th graders in the U.S. are typically 9 or 10 years old. Methods We used data from the 2004–2005 Texas School Physical Activity and Nutrition (SPAN survey linked with U.S. Department of Justice, Office of Justice Programs, Bureau of Justice Statistics data for the years 2000 through 2005 and Texas State data on sexual offenders. The probability-based sample included a total of 7,907 children in grade four. Multistage probability sampling weights were used. The dependent variables included were hours of TV watching, video game playing, computer use and total indoor sedentary behavior after school. Incremental Relative Rates were computed for community crime rates including robberies, all violent crimes, murders, assaults, property crimes, rapes, burglaries, larcenies and motor vehicle thefts as well as for sexual offenders living in the neighborhood. The neighborhood refers to the areas where the students at each school live. In the case of sexual offenders, sexual offenders per capita are estimated using the per capita rate in the zip code of the school attended; all other crime statistics are estimated by the crimes per capita in the police department jurisdiction covering the school attended. After controlling for sex, age, and African-American and Hispanic, cross-sectional associations were determined using

  6. More "Hands-On" Particle Physics: Learning with ATLAS at CERN

    Long, Lynne

    2011-01-01

    This article introduces teachers and students to a new portal of resources called Learning with ATLAS at CERN (http://learningwithatlas-portal.eu/), which has been developed by a European consortium of academic researchers and schools' liaison and outreach providers from countries across Europe. It includes the use of some of the mind-boggling…

  7. The ATLAS Analysis Model

    Amir Farbin

    The ATLAS Analysis Model is a continually developing vision of how to reconcile physics analysis requirements with the ATLAS offline software and computing model constraints. In the past year this vision has influenced the evolution of the ATLAS Event Data Model, the Athena software framework, and physics analysis tools. These developments, along with the October Analysis Model Workshop and the planning for CSC analyses have led to a rapid refinement of the ATLAS Analysis Model in the past few months. This article introduces some of the relevant issues and presents the current vision of the future ATLAS Analysis Model. Event Data Model The ATLAS Event Data Model (EDM) consists of several levels of details, each targeted for a specific set of tasks. For example the Event Summary Data (ESD) stores calorimeter cells and tracking system hits thereby permitting many calibration and alignment tasks, but will be only accessible at particular computing sites with potentially large latency. In contrast, the Analysis...

  8. Search for new physics in dijet mass and angular distributions in collisions at $\\sqrt{s} = 7$ TeV measured with the ATLAS detector

    Thorsten Dietzsch; on behalf of the ATLAS Collaboration

    2012-10-01

    We present a search for physics beyond the Standard Model in proton–proton collisions at a centre-of-mass energy of $\\sqrt{s} = 7$ TeV, performed with the ATLAS detector at the Large Hadron Collider (LHC). No evidence for new physics is found in dijet mass and angular distributions and stringent limits are set on a variety of models of new physics, including excited quarks, quark contact interactions, axigluons, and quantum black holes.

  9. 4th international renewable energy storage conference (IRES 2009)

    NONE

    2009-07-01

    Within the 4th International Renewable Energy Storage Conference of The European Association for Renewable Energy (Bonn, Federal Republic of Germany) and The World Council for Renewable Energy (Bonn, Federal Republic of Germany) between 24th and 25 November, 2009, in Berlin (Federal Republic of Germany), the following lectures were held: (1) The World Wind Energy Association (A. Kane); (2) The contribution of wind power to the energy supply of tomorrow (H. Albers); (3) Intelligent energy systems for the integration of renewable energies (A.-C. Agricola); (4) 100% Renewable energies: From fossil baseload plants to renewable plants for basic supply (M. Willenbacher); (5) High-performance Li-ion technology for stationary and mobile applications (A. Gutsch); (6) Energy storage in geological underground - Competition of use at storage formations (L. Dietrich); (7) E-mobility concepts for model region ''Rhein-Ruhr'' in North Rhine Westphalia (G.-U. Funk); (8) Photovoltaic energy storage for a better energy management in residential buildings (S. Pincemin); (9) Self-consuming photovoltaic energy in Germany - Impact on energy flows, business cases, and the distribution grid (M. Braun); (10) Local energy systems -optimized for local consumption of self-produced electricity (B. Wille-Haussmann); (11) Assessing the economics of distributed storage systems at the end consumer level (K.-H. Ahlert); (12) A new transportation system for heat on a wide temperature range (S. Gschwander); (13) Latent heat storage media for cooling applications (C. Doetsch); (14) Numerical and experimental analysis of latent heat storage systems for mobile application (F. Roesler); (15) CO{sub 2}-free heat supply from waste heat (H.-W. Etzkorn); (16) Stationary Li-Ion-technology applications for dispatchable power (C. Kolligs); (17) Redox-flow batteries - Electric storage systems for renewable energy (T. Smolinka); (18) Energy storage by means of flywheels (H. Kielsein); (19

  10. ATLAS and CMS Run-1 results on Higgs and Standard model physics and first 13 TeV measurements with ATLAS

    Gaycken, Goetz; The ATLAS collaboration

    2015-01-01

    The wealth of data collected during the LHC Run-1 allowed many SM parameters to be measured and, most notably, lead to the discovery of the Higgs boson. This talk will summarise the most important ATLAS and CMS Run-1 results concerning the SM, including measurements of the properties of the discovered Higgs boson, assumed to be the predicted SM particle. The second part of the talk will focus on ATLAS, and present the improvements of the detector and its performance following the LS1 shutdown. The talk will finish with the first ATLAS Run-2 results at sqrt(s)=13TeV.

  11. Recent results on B-Physics and Quarkonia with the ATLAS detector

    Maevskiy, Artem; The ATLAS collaboration

    2016-01-01

    The paper describes several measurements recently completed by ATLAS: (a) the decay of $\\Lambda^0_b$ into $\\Lambda^0$ and $\\psi(2\\text{S})$, observed for the first time and compared to the decay into $\\Lambda^0$ and $J/\\psi$; (b) the decay of $B^0_c$ into $J/\\psi D^+_s$ and $J/\\psi D^{*+}_s$, including polarisation measurement for the latter channel; (c) the measurement of the ratio of the $b$-quark fragmentation fractions $f_s/f_d$, which complements a previous measurement of LHCb over a different range of $p_{\\text{T}}$ and $y$; (d) $B^+$ mass reconstruction in the decay of $B^+$ to $J/\\psi$ and $K^+$ at ATLAS at 13 TeV $pp$ collisions; (e) measurement of the differential non-prompt $J/\\psi$ production fraction at 13 TeV.

  12. The ATLAS FTK system: how to improve the physics potential with a tracking trigger

    Iizawa, T; The ATLAS collaboration

    2014-01-01

    After a very successful data taking run, the ATLAS experiment is being upgraded to cope with the higher luminosity and higher center of mass energy that the Large Hadron Collider will provide in the next years. The Fast Tracker (FTK) trigger system, part of the ATLAS trigger upgrade program, is a highly parallel hardware device designed to operate at the level-1 trigger output rate. FTK is a dedicated processor based on a mixture of advanced technologies. Modern, powerful Field Programmable Gate Arrays (FPGAs) form an important part of the system architecture, and the large level of computing power required for pattern recognition is provided by incorporating standard-cell ASICs named Associative Memories (AM). FTK provides global track reconstruction in the full inner silicon detector, with resolution comparable to the offline algorithms, in approximately 100 microseconds, allowing a fast and precise detection of the primary and secondary vertex information. The track and vertex information is then used by t...

  13. Physics performance and upgrade for Run II of the ATLAS pixel detector

    The ATLAS pixel detector is the innermost detector of the ATLAS experiment at the Large Hadron Collider at CERN, providing high-resolution measurements of charged particle trajectories in the high radiation environment close to the collision region. The operation and performance of the pixel detector during the first years of LHC running are described. More than 96% of the detector modules were operational during this period, with an average intrinsic hit efficiency larger than 99%. The alignment of the detector was found to be stable at the few-micron level over long periods of time. Detector material description, tracking performances in Run I and expectations for the upcoming Run II are presented

  14. The ATLAS cavern in the spotlight

    On Wednesday, 4th June, the President of the Swiss Confederation, Pascal Couchepin, inaugurated the world's largest experimental cavern, which is to house the ATLAS detector in 2007, and announced Switzerland's gift to CERN of the "Palais de l'Equilibre".

  15. The Effects of Cooperative Learning Strategies on Vocabulary Skills of 4th Grade Students

    Bilen, Didem; Tavil, Zekiye Müge

    2015-01-01

    This study was carried out to investigate the effects of cooperative learning strategies on the vocabulary skills of 4th grade students. The study was also designed to ascertain the attitudes of the students in the experimental group towards cooperative learning. Out of 96 4th grade students enrolled in the private school where the study took…

  16. Science Content Courses: Workshop in Food Chemistry for 4th Grade School Teachers

    Chaiyapechara, S.; Dong, F. M.

    2004-01-01

    A science content course in food chemistry was offered as a 4-day summer workshop from 1999 to 2001 to 4th grade school teachers in the Seattle School District. The objectives of the workshop were to increase the teachers' knowledge of food science, to perform simple experiments that could be used in the 4th grade classroom, and to help the…

  17. 75 FR 34636 - Safety Zone; Jameson Beach 4th of July Fireworks Display

    2010-06-18

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Jameson Beach 4th of July Fireworks Display... temporary safety zone in the navigable waters of Lake Tahoe, for the Jameson Beach 4th of July Fireworks... has a substantial direct effect on State or local governments and would either preempt State law...

  18. Physics performances with the new ATLAS Level-1 Topological trigger in the LHC High-Luminosity Era

    Artz, Sebastian; The ATLAS collaboration

    2016-01-01

    The ATLAS trigger system aim at reducing the 40 MHz protons collision event rate to a manageable event storage rate of 1 kHz, preserving events with valuable physics meaning. The Level-1 trigger is the first rate-reducing step in the ATLAS trigger system, with an output rate of 100 kHz and decision latency of less than 2.5 micro seconds. It is composed of the calorimeter trigger, muon trigger and central trigger processor. During the last upgrade, a new electronics element was introduced to Level-1: L1Topo, the Topological Processor System. It will make it possible to use detailed realtime information from the Level-1 calorimeter and muon triggers, processed in individual state of the art FPGA processors to determine angles between jets and/or leptons and calculate kinematic variables based on lists of selected/sorted objects. Over hundred VHDL algorithms are producing trigger outputs to be incorporated into the central trigger processor. Such information will be essential to improve background rejection and ...

  19. 4th International Conference on Exotic Nuclei and Atomic Masses

    Gross, Carl J; Rykaczewski, Krzysztof P; The European Physical Journal A : Volume 25, Supplement 1, 2005

    2005-01-01

    The International Conference on Exotic Nuclei and Atomic Masses (ENAM) has gained the status of the premier meeting for the physics of nuclei far from stability. The selected and refereed papers presenting the main results constitute valuable proceedings that offer everyone working in this field an authoritative and comprehensive source of reference.

  20. ATLAS TV PROJECT

    2005-01-01

    Budker Nuclear Physics Institute, Novosibirsk Sequence 1 Shots of aircraft factory where machining for ATLAS is done Shots of aircraft Work on components for ATLAS big wheel Discussions between Tikhonov and Nordberg in workshop Sequence 2 Shots of downtown Novosibirsk, including little church which is mid-point of Russian Federation Sequence 3 Interview of Yuri Tikhonov by Andrew Millington

  1. Search for new physics in dijet mass and angular distributions in pp collisions at sqrt{s}=7 TeV measured with the ATLAS detector

    Aad, G.; Abbott, B.; Abdallah, J.; Chudoba, Jiří; Gallus, Petr; Gunther, Jaroslav; Hruška, I.; Juránek, Vojtěch; Kepka, Oldřich; Kupčo, Alexander; Kůs, Vlastimil; Kvasnička, Jiří; Lipinský, L.; Lokajíček, Miloš; Marčišovský, Michal; Mikeštíková, Marcela; Myška, Miroslav; Němeček, Stanislav; Panušková, M.; Růžička, Pavel; Schovancová, Jaroslava; Šícho, Petr; Staroba, Pavel; Taševský, Marek; Tic, Tomáš; Valenta, J.; Vrba, Václav

    2011-01-01

    Roč. 13, č. 5 (2011), 1-45. ISSN 1367-2630 R&D Projects: GA MŠk LA08015; GA MŠk LA08032 Institutional research plan: CEZ:AV0Z10100502 Keywords : higher-dimensional * angular distribution * new physics * axigluon * ATLAS * quantum gravity * CERN LHC Coll * experimental results Subject RIV: BF - Elementary Particles and High Energy Physics Impact factor: 4.177, year: 2011

  2. Virtual Visit to the ATLAS Control Room during Researchers Night by Institute of Nuclear Physics Polish Academy of Sciences, Cracow

    ATLAS Experiment

    2012-01-01

    We invite our "6-th Ma?opolska Researchers Night" guests for Virtual Visits in ATLAS Control Room. They could ask Polish scientists and experts during a lecture "How a mass is created - the Higgs boson discovery" to be given by dr Anna Kaczmarska. "Ma?opolska Researchers Night" is a part of European Researchers Night events to be held in more than 200 cities. Institute of Nuclear Physics Polish Academy of Sciences invites Cracow citizens and tourists visiting our town to its laboratories and to the "Science Garden" formed, especially for this event, in front of the main building. Visitors will have an unique opportunity to discuss science problems with researches and students. Wide range of demonstrations of interesting activities performed in our institute will be presented, these include among others: - AIC 144 Cyclotron with hadrons' therapy facility for eye treatment - Dosimetry and environmental pollution monitoring - Large Hadron Collider experiments - Van de Graff linear accelerator with proton micro b...

  3. The ATLAS installation team, led by Tommi Nyman, after having positioned the Barrel Calorimeter in its final location in the ATLAS experimental cavern UX15

    2005-01-01

    On Friday 4th November, the ATLAS Barrel Calorimeter was moved from its assembly point at the side of the ATLAS cavern to the centre of the toroidal magnet system. The detector was finally aligned, to the precision of within a millimetre, on Wednesday 9th November.

  4. 4th iTi Conference in Turbulence

    Peinke, Joachim; Talamelli, Alessandro; Castillo, Luciano; Hölling, Michael

    2012-01-01

    This fourth issue on "progress in turbulence" is based on the fourth ITI conference (ITI interdisciplinary turbulence initiative), which took place in Bertinoro, North Italy. Leading researchers from the engineering and physical sciences presented latest results in turbulence research. Basic as well as applied research is driven by the rather notorious difficult and essentially unsolved problem of turbulence. In this collection of contributions clear progress can be seen in different aspects, ranging from new quality of numerical simulations to new concepts of experimental investigations and new theoretical developments. The importance of turbulence is shown for a wide range of applications including: combustion, energy, flow control, urban flows, are few examples found in this volume. A motivation was to bring fundamentals of turbulence in connection with renewable energy. This lead us to add a special topic relevant to the impact of turbulence on the wind energy conversion. The structure of the present book...

  5. ATLAS Virtual Visits

    Goldfarb, Steven; The ATLAS collaboration

    2015-01-01

    ATLAS Virtual Visits is a project initiated in 2011 for the Education & Outreach program of the ATLAS Experiment at CERN. Its goal is to promote public appreciation of the LHC physics program and particle physics, in general, through direct dialogue between ATLAS physicists and remote audiences. A Virtual Visit is an IP-based videoconference, coupled with a public webcast and video recording, between ATLAS physicists and remote locations around the world, that typically include high school or university classrooms, Masterclasses, science fairs, or other special events, usually hosted by collaboration members. Over the past two years, more than 10,000 people, from all of the world’s continents, have actively participated in ATLAS Virtual Visits, with many more enjoying the experience from the publicly available webcasts and recordings. We present an overview of our experience and discuss potential development for the future.

  6. 21 October 2008 - LHC Inauguration - Deputy Minister for Environment, Physical Planning and Public Works T. Xanthopulos welcomed by CERN Director-General R. Aymar, visiting the ATLAS cavern and LHC tunnel and signing the electronic guest book with E. Tsesmelis.

    CERN Photo Service

    2008-01-01

    21 October 2008 - LHC Inauguration - Deputy Minister for Environment, Physical Planning and Public Works T. Xanthopulos welcomed by CERN Director-General R. Aymar, visiting the ATLAS cavern and LHC tunnel and signing the electronic guest book with E. Tsesmelis.

  7. Search for new physics in diphoton and $E^{miss}_{T}$ final states using the ATLAS detector at the LHC

    Wildt, Martin

    A search for new physics in diphoton events with large missin g transverse momen- tum with the ATLAS detector is presented in this thesis. The 2 011 dataset of 4.8fb − 1 of proton-proton collisions provided by the LHC at a center- of-mass energy of √ s = 7TeV is analyzed. By making use of three signal regions, an optimized sensitiv ity of the event selection is achieved in different parameter ranges of physics models b eyond the Standard Model (SM). The SM background is estimated mainly in data con trol regions. No excess of events above the SM expectation is found in any sign al region. Hence, 95% confidence level (CL) exclusion limits on the production cross section and on masses of new physics particles are derived. The results are interpreted in scenarios with gauge-mediat ed SUSY breaking (GMSB), namely the general gauge mediation (GGM) scenario with a bin o-like lightest neu- tralino ( ̃ χ 0 1 ) and the SPS8 scenario of the (minimal) GMSB model. In the GGM scenario, gluino (squark) masses, which a...

  8. European Code against Cancer 4th Edition: 12 ways to reduce your cancer risk.

    Schüz, Joachim; Espina, Carolina; Villain, Patricia; Herrero, Rolando; Leon, Maria E; Minozzi, Silvia; Romieu, Isabelle; Segnan, Nereo; Wardle, Jane; Wiseman, Martin; Belardelli, Filippo; Bettcher, Douglas; Cavalli, Franco; Galea, Gauden; Lenoir, Gilbert; Martin-Moreno, Jose M; Nicula, Florian Alexandru; Olsen, Jørgen H; Patnick, Julietta; Primic-Zakelj, Maja; Puska, Pekka; van Leeuwen, Flora E; Wiestler, Otmar; Zatonski, Witold

    2015-12-01

    This overview describes the principles of the 4th edition of the European Code against Cancer and provides an introduction to the 12 recommendations to reduce cancer risk. Among the 504.6 million inhabitants of the member states of the European Union (EU28), there are annually 2.64 million new cancer cases and 1.28 million deaths from cancer. It is estimated that this cancer burden could be reduced by up to one half if scientific knowledge on causes of cancer could be translated into successful prevention. The Code is a preventive tool aimed to reduce the cancer burden by informing people how to avoid or reduce carcinogenic exposures, adopt behaviours to reduce the cancer risk, or to participate in organised intervention programmes. The Code should also form a base to guide national health policies in cancer prevention. The 12 recommendations are: not smoking or using other tobacco products; avoiding second-hand smoke; being a healthy body weight; encouraging physical activity; having a healthy diet; limiting alcohol consumption, with not drinking alcohol being better for cancer prevention; avoiding too much exposure to ultraviolet radiation; avoiding cancer-causing agents at the workplace; reducing exposure to high levels of radon; encouraging breastfeeding; limiting the use of hormone replacement therapy; participating in organised vaccination programmes against hepatitis B for newborns and human papillomavirus for girls; and participating in organised screening programmes for bowel cancer, breast cancer, and cervical cancer. PMID:26164654

  9. ATLAS TV PROJECT

    OMNI communication

    2006-01-01

    CERN, Building 40 Interview with theorist Mr. Philip Hinchliffe (Berkeley) as well an interview with his wife Mrs. Hinchliffe who is also Physics Department head at Berkeley. They are both working in ATLAS Experiment.

  10. ATLAS TV PROJECT

    OMNI communication

    2005-01-01

    ATLAS Physics Workshop at the University of Roma Tre held from Monday 06 June 2005 to Saturday 11 June 2005. Experts establishing workshop, poster, people milling Shots of Peter Jenni introduction Many audience shots Sequences from various talks