CMS DOCUMENTATION

CERN Multimedia

CMS TALKS AT MAJOR MEETINGS The agenda and talks from major CMS meetings can now be electronically accessed from the iCMS Web site. The following items can be found on: http://cms.cern.ch/iCMS/ General - CMS Weeks (Collaboration Meetings), CMS Weeks Agendas The talks presented at the Plenary Sessions. LHC Symposiums Management - CB - MB - FB - FMC Agendas and minutes are accessible to CMS members through their AFS account (ZH). However some linked documents are restricted to the Board Members. FB documents are only accessible to FB members. LHCC The talks presented at the ‘CMS Meetings with LHCC Referees’ are available on request from the PM or MB Country Representative. Annual Reviews The talks presented at the 2006 Annual reviews are posted.   CMS DOCUMENTS It is considered useful to establish information on the first employment of CMS doctoral students upon completion of their theses. Therefore it is requested that Ph.D students inform the CMS Secretariat a...

CMS DOCUMENTATION

CERN Multimedia

CMS TALKS AT MAJOR MEETINGS The agenda and talks from major CMS meetings can now be electronically accessed from the iCMS Web site. The following items can be found on: http://cms.cern.ch/iCMS/ General - CMS Weeks (Collaboration Meetings), CMS Weeks Agendas The talks presented at the Plenary Sessions. LHC Symposiums Management - CB - MB - FB - FMC Agendas and minutes are accessible to CMS members through their AFS account (ZH). However some linked documents are restricted to the Board Members. FB documents are only accessible to FB members. LHCC The talks presented at the ‘CMS Meetings with LHCC Referees’ are available on request from the PM or MB Country Representative. Annual Reviews The talks presented at the 2006 Annual reviews are posted. CMS DOCUMENTS It is considered useful to establish information on the first employment of CMS doctoral students upon completion of their theses. Therefore it is requested that Ph.D students inform the CMS Secretariat about the natu...

CMS DOCUMENTATION

CERN Multimedia

CMS TALKS AT MAJOR MEETINGS The agenda and talks from major CMS meetings can now be electronically accessed from the iCMS Web site. The following items can be found on: http://cms.cern.ch/iCMS/ General - CMS Weeks (Collaboration Meetings), CMS Weeks Agendas The talks presented at the Plenary Sessions. LHC Symposiums Management - CB - MB - FB - FMC Agendas and minutes are accessible to CMS members through their AFS account (ZH). However some linked documents are restricted to the Board Members. FB documents are only accessible to FB members. LHCC The talks presented at the ‘CMS Meetings with LHCC Referees’ are available on request from the PM or MB Country Representative. Annual Reviews The talks presented at the 2006 Annual reviews are posted. CMS DOCUMENTS It is considered useful to establish information on the first employment of CMS doctoral students upon completion of their theses. Therefore it is requested that Ph.D students inform the CMS Secretariat about the natur...

CMS DOCUMENTATION

CERN Multimedia

CMS TALKS AT MAJOR MEETINGS The agenda and talks from major CMS meetings can now be electronically accessed from the iCMS Web site. The following items can be found on: http://cms.cern.ch/iCMS/ Management- CMS Weeks (Collaboration Meetings), CMS Weeks Agendas The talks presented at the Plenary Sessions. Management - CB - MB - FB Agendas and minutes are accessible to CMS members through their AFS account (ZH). However some linked documents are restricted to the Board Members. FB documents are only accessible to FB members. LHCC The talks presented at the ‘CMS Meetings with LHCC Referees’ are available on request from the PM or MB Country Representative. Annual Reviews The talks presented at the 2007 Annual reviews are posted. CMS DOCUMENTS It is considered useful to establish information on the first employment of CMS doctoral students upon completion of their theses. Therefore it is requested that Ph.D students inform the CMS Secretariat about the nature of em¬pl...

CMS DOCUMENTATION

CERN Multimedia

CMS TALKS AT MAJOR MEETINGS The agenda and talks from major CMS meetings can now be electronically accessed from the iCMS Web site. The following items can be found on: http://cms.cern.ch/iCMS/ Management- CMS Weeks (Collaboration Meetings), CMS Weeks Agendas The talks presented at the Plenary Sessions. Management - CB - MB - FB Agendas and minutes are accessible to CMS members through their AFS account (ZH). However some linked documents are restricted to the Board Members. FB documents are only accessible to FB members. LHCC The talks presented at the ‘CMS Meetings with LHCC Referees’ are available on request from the PM or MB Country Representative. Annual Reviews The talks presented at the 2007 Annual reviews are posted. CMS DOCUMENTS It is considered useful to establish information on the first employment of CMS doctoral students upon completion of their theses. Therefore it is requested that Ph.D students inform the CMS Secretariat about the nature of employment and ...

CMS DOCUMENTATION

CERN Multimedia

CMS TALKS AT MAJOR MEETINGS The agenda and talks from major CMS meetings can now be electronically accessed from the iCMS Web site. The following items can be found on: http://cms.cern.ch/iCMS/ General - CMS Weeks (Collaboration Meetings), CMS Weeks Agendas The talks presented at the Plenary Sessions. LHC Symposiums Management - CB - MB - FB - FMC Agendas and minutes are accessible to CMS members through their AFS account (ZH). However some linked documents are restricted to the Board Members. FB documents are only accessible to FB members. LHCC The talks presented at the ‘CMS Meetings with LHCC Referees’ are available on request from the PM or MB Country Representative. Annual Reviews The talks presented at the 2006 Annual reviews are posted. CMS DOCUMENTS It is considered useful to establish information on the first employment of CMS doctoral students upon completion of their theses. Therefore it is requested that Ph.D students inform the CMS Secretariat about the na...

CMS DOCUMENTATION

CERN Multimedia

CMS TALKS AT MAJOR MEETINGS The agenda and talks from major CMS meetings can now be electronically accessed from the ICMS Web site. The following items can be found on: http://cms.cern.ch/iCMS Management – CMS Weeks (Collaboration Meetings), CMS Weeks Agendas The talks presented at the Plenary Sessions. Management – CB – MB – FB Agendas and minutes are accessible to CMS members through Indico. LHCC The talks presented at the ‘CMS Meetings with LHCC Referees’ are available on request from the PM or MB Country Representative. Annual Reviews The talks presented at the 2008 Annual Reviews are posted in Indico. CMS DOCUMENTS It is considered useful to establish information on the first employment of CMS doctoral student upon completion of their theses.  Therefore it is requested that Ph.D students inform the CMS Secretariat about the nature of employment and name of their first employer. The Notes, Conference Reports and Theses published si...

CMS 2006 - CMS France days

International Nuclear Information System (INIS)

Huss, D.; Dobrzynski, L.; Virdee, J.; Boudoule, G.; Fontaine, J.C.; Faure, J.L.; Paganini, P.; Mathez, H.; Gross, L.; Charlot, C.; Trunov, A.; Patois, Y.; Busson, P.; Maire, M.; Berthon, U.; Todorov, T.; Beaudette, F.; Sirois, Y.; Baffioni, S.; Beauceron, S.; Delmeire, E.; Agram, J.L.; Goerlach, U.; Mangeol, D.; Salerno, R.; Bloch, D.; Lassila-Perini, K.; Blaha, J.; Drobychev, G.; Gras, P.; Hagenauer, M.; Denegri, D.; Lounis, A.; Faccio, F.; Lecoq, J.

2006-01-01

These CMS talks give the opportunity for all the teams working on the CMS (Compact Muon Spectrometer) project to present the status of their works and to exchange ideas. 5 sessions have been organized: 1) CMS status and perspectives, 2) contributions of the different laboratories, 3) software and computation, 4) physics with CMS (particularly the search for the Higgs boson), and 5) electronic needs. This document gathers the slides of the presentations

The IGUANA interactive graphics toolkit with examples from CMS and D0

International Nuclear Information System (INIS)

Alverson, G.; Osborne, I.; Taylor, L.; Tuura, L.

2001-01-01

IGUANA (Interactive Graphics for User ANAlysis) is a C++ toolkit for developing graphical user interfaces and high performance 2-D and 3-D graphics applications, such as data browsers and detector and event visualisation programs. The IGUANA strategy is to use freely available software (e.g. Qt, SoQt, OpenInventor, OpenGL, HEPVis) and package and extend it to provide a general-purpose and experiment-independent toolkit. The authors describe the evaluation and choices of publicly available GUI/graphics software and the additional functionality currently provided by IGUANA. The authors demonstrate the use of IGUANA with several applications built for CMS and D0

CMS Thesis Award

CERN Multimedia

2004-01-01

The 2003 CMS thesis award was presented to Riccardo Ranieri on 15 March for his Ph.D. thesis "Trigger Selection of WH → μ ν b bbar with CMS" where 'WH → μ ν b bbar' represents the associated production of the W boson and the Higgs boson and their subsequent decays. Riccardo received his Ph.D. from the University of Florence and was supervised by Carlo Civinini. In total nine thesis were nominated for the award, which was judged on originality, impact within the field of high energy physics, impact within CMS and clarity of writing. Gregory Snow, secretary of the awarding committee, explains why Riccardo's thesis was chosen, ‘‘The search for the Higgs boson is one of the main physics goals of CMS. Riccardo's thesis helps the experiment to formulate the strategy which will be used in that search.'' Lorenzo Foà, Chairperson of the CMS Collaboration Board, presented Riccardo with an commemorative engraved plaque. He will also receive the opportunity to...

Genome-wide comparative transcriptome analysis of CMS-D2 and its maintainer and restorer lines in upland cotton.

Science.gov (United States)

Wu, Jianyong; Zhang, Meng; Zhang, Bingbing; Zhang, Xuexian; Guo, Liping; Qi, Tingxiang; Wang, Hailin; Zhang, Jinfa; Xing, Chaozhu

2017-06-08

Cytoplasmic male sterility (CMS) conferred by the cytoplasm from Gossypium harknessii (D2) is an important system for hybrid seed production in Upland cotton (G. hirsutum). The male sterility of CMS-D2 (i.e., A line) can be restored to fertility by a restorer (i.e., R line) carrying the restorer gene Rf1 transferred from the D2 nuclear genome. However, the molecular mechanisms of CMS-D2 and its restoration are poorly understood. In this study, a genome-wide comparative transcriptome analysis was performed to identify differentially expressed genes (DEGs) in flower buds among the isogenic fertile R line and sterile A line derived from a backcross population (BC 8 F 1 ) and the recurrent parent, i.e., the maintainer (B line). A total of 1464 DEGs were identified among the three isogenic lines, and the Rf1-carrying Chr_D05 and its homeologous Chr_A05 had more DEGs than other chromosomes. The results of GO and KEGG enrichment analysis showed differences in circadian rhythm between the fertile and sterile lines. Eleven DEGs were selected for validation using qRT-PCR, confirming the accuracy of the RNA-seq results. Through genome-wide comparative transcriptome analysis, the differential expression profiles of CMS-D2 and its maintainer and restorer lines in Upland cotton were identified. Our results provide an important foundation for further studies into the molecular mechanisms of the interactions between the restorer gene Rf1 and the CMS-D2 cytoplasm.

CMS brochure (English version)

CERN Document Server

2017-01-01

CMS is the heaviest detector at the LHC, the most powerful particle accelerator in the world, which has started up in 2008. A multi-purpose detector, CMS is composed of several systems built around a powerful superconducting magnet.CMS est la plus lourde des expériences du LHC, l'accélérateur de particules le plus puissant au monde qui a été mis en service en 2008. Les détecteurs de cette expérience polyvalente sont placés autour d'un puissant aimant supraconducteur.

CMS brochure (French version)

CERN Document Server

2017-01-01

CMS is the heaviest detector at the LHC, the most powerful particle accelerator in the world, which has started up in 2008. A multi-purpose detector, CMS is composed of several systems built around a powerful superconducting magnet.CMS est la plus lourde des expériences du LHC, l'accélérateur de particules le plus puissant au monde qui a été mis en service en 2008. Les détecteurs de cette expérience polyvalente sont placés autour d'un puissant aimant supraconducteur.

20 fevrier 2012 - Le Vice-Président du Gouvernement Wallon et Ministre du Développement durable et de la Fonction Publique en charge de l’Energie du Logement et de la Recherche J.-M. Nollet, Royaume de Belgique, visite la salle de contrôle de CMS au Point 5, la caverne expérimentale CMS et le hall de tests des aimants supraconducteurs du LHC. Les chefs de département T. Lagrange et F. Hemmer accompagnent la délégation. L. Walckiers guide la visite SM18.

CERN Multimedia

Maximilien Brice

2012-01-01

20 fevrier 2012 - Le Vice-Président du Gouvernement Wallon et Ministre du Développement durable et de la Fonction Publique en charge de l’Energie du Logement et de la Recherche J.-M. Nollet, Royaume de Belgique, visite la salle de contrôle de CMS au Point 5, la caverne expérimentale CMS et le hall de tests des aimants supraconducteurs du LHC. Les chefs de département T. Lagrange et F. Hemmer accompagnent la délégation. L. Walckiers guide la visite SM18.

CMS Experiment Data Processing at RDMS CMS Tier 2 Centers

CERN Document Server

Gavrilov, V; Korenkov, V; Tikhonenko, E; Shmatov, S; Zhiltsov, V; Ilyin, V; Kodolova, O; Levchuk, L

2012-01-01

Russia and Dubna Member States (RDMS) CMS collaboration was founded in the year 1994 [1]. The RDMS CMS takes an active part in the Compact Muon Solenoid (CMS) Collaboration [2] at the Large Hadron Collider (LHC) [3] at CERN [4]. RDMS CMS Collaboration joins more than twenty institutes from Russia and Joint Institute for Nuclear Research (JINR) member states. RDMS scientists, engineers and technicians were actively participating in design, construction and commissioning of all CMS sub-detectors in forward regions. RDMS CMS physics program has been developed taking into account the essential role of these sub-detectors for the corresponding physical channels. RDMS scientists made large contribution for preparation of study QCD, Electroweak, Exotics, Heavy Ion and other physics at CMS. The overview of RDMS CMS physics tasks and RDMS CMS computing activities are presented in [5-11]. RDMS CMS computing support should satisfy the LHC data processing and analysis requirements at the running phase of the CMS experime...

Tomo3D 2.0--exploitation of advanced vector extensions (AVX) for 3D reconstruction.

Science.gov (United States)

Agulleiro, Jose-Ignacio; Fernandez, Jose-Jesus

2015-02-01

Tomo3D is a program for fast tomographic reconstruction on multicore computers. Its high speed stems from code optimization, vectorization with Streaming SIMD Extensions (SSE), multithreading and optimization of disk access. Recently, Advanced Vector eXtensions (AVX) have been introduced in the x86 processor architecture. Compared to SSE, AVX double the number of simultaneous operations, thus pointing to a potential twofold gain in speed. However, in practice, achieving this potential is extremely difficult. Here, we provide a technical description and an assessment of the optimizations included in Tomo3D to take advantage of AVX instructions. Tomo3D 2.0 allows huge reconstructions to be calculated in standard computers in a matter of minutes. Thus, it will be a valuable tool for electron tomography studies with increasing resolution needs. Copyright © 2014 Elsevier Inc. All rights reserved.

R and D towards future CMS RPC upgrades

CERN Document Server

Fagot, A.; Cimmino, A; Gul, M.; Rios, A.A.O.; Tytgat, M.; Zaganidis, N.; Aly, S.; Assran, Y.; Radi, A.; Sayed, A.; Singh, G.; Abbrescia, M.; Iaselli, G.; Maggi, M.; Pugliese, G.; Verwilligen, P.; Van Doninck, W.; Colafranceschi, S.; Sharma, A.; Benussi, L.; Bianco, S.; Piccolo, D.; Primavera, F.; Bhatnagar, V.; Kumari, R.; Mehta, A.; Singh, J.; Ahmad, A.; Ahmed, W.; Asghar, M.I.; Awan, I.M.; Hoorani, H.R.; Muhammad, S.; Shah, M.A.; Shahzad, H.; Cho, S.W.; Choi, S.Y.; Hong, B.; Kang, M.H.; Lee, K.S.; Lim, J.H.; Park, S.K.; Kim, M.S.; Gouzevitch, M.; Grenier, G.; Lagarde, F.; Laktineh, I.B.; Bernardino, S.Carpinteyro; Estrada, C.Uribe; Pedraza, I.; Carrillo Moreno, S.; Vazquez Valencia, F.; Pant, L.M.; Buontempo, S.; Cavallo, N.; Esposito, M.; Fabozzi, F.; Lanza, G.; Orso, I.; Lista, L.; Meola, S.; Merola, M.; Paolucci, P.; Thyssen, F.; Braghieri, A.; Magnani, A.; Montagna, P.; Riccardi, C.; Salvini, P.; Vai, I.; Vitulo, P.; Ban, Y.; Qian, S.J.; Choi, M.; Choi, Y.; Goh, J.; Kim, D.; Aleksandrov, A.; Hadjiiska, R.; Iaydjiev, P.; Rodozov, M.; Stoykova, S.; Sultanov, G.; Vutova, M.; Dimitrov, A.; Litov, L.; Pavlov, B.; Petkov, P.; Bagaturia, I.; Lomidze, D.; Avila, C.; Cabrera, A.; Sanabria, J.C.; Crotty, I.; Vaitkus, J.

2016-09-26

High pseudo-rapidity region of CMS muon system is covered only by Cathode Strip Chambers (CSC) and lacks redundant coverage despite the fact that it is a challenging region for muons in terms of backgrounds and momentum resolution. In order to maintain good efficiency for the muon trigger in this region additional RPC are planned to be installed in stations RE31 and RE41. The stations will use RPCs with lower granularity but good timing resolution to mitigate background effects and complete the redundancy of the system. R and D activities will be presented in the talk.

CMS DAQ current and future hardware upgrades up to post Long Shutdown 3 (LS3) times

CERN Document Server

Racz, Attila; Behrens, Ulf; Branson, James; Chaze, Olivier; Cittolin, Sergio; Contescu, Cristian; da Silva Gomes, Diego; Darlea, Georgiana-Lavinia; Deldicque, Christian; Demiragli, Zeynep; Dobson, Marc; Doualot, Nicolas; Erhan, Samim; Fulcher, Jonathan Richard; Gigi, Dominique; Gladki, Maciej; Glege, Frank; Gomez-Ceballos, Guillelmo; Hegeman, Jeroen; Holzner, Andre; Janulis, Mindaugas; Lettrich, Michael; Meijers, Frans; Meschi, Emilio; Mommsen, Remigius K; Morovic, Srecko; O'Dell, Vivian; Orn, Samuel Johan; Orsini, Luciano; Papakrivopoulos, Ioannis; Paus, Christoph; Petrova, Petia; Petrucci, Andrea; Pieri, Marco; Rabady, Dinyar; Reis, Thomas; Sakulin, Hannes; Schwick, Christoph; Simelevicius, Dainius; Vazquez Velez, Cristina; Vougioukas, Michail; Zejdl, Petr

2017-01-01

Following the first LHC collisions seen and recorded by CMS in 2009, the DAQ hardware went through a major upgrade during LS1 (2013- 2014) and new detectors have been connected during 2015-2016 and 2016-2017 winter shutdowns. Now, LS2 (2019-2020) and LS3 (2024-mid 2026) are actively being prepared. This paper shows how CMS DAQ hardware has evolved from the beginning and will continue to evolve in order to meet the future challenges posed by High Luminosity LHC (HL-LHC) and the CMS detector evolution. In particular, post LS3 DAQ architectures are focused upon.

42 CFR 423.758 - Collection of civil money penalties imposed by CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Collection of civil money penalties imposed by CMS... Intermediate Sanctions § 423.758 Collection of civil money penalties imposed by CMS. (a) When a Part D plan sponsor does not request a hearing CMS initiates collection of the civil money penalty following the...

CMS Tracker Upgrades: R\\&D Plans, Present Status and Perspectives

CERN Document Server

AUTHOR|(CDS)2091649

2015-01-01

The present CMS pixel detector designed for a luminosity of $10^{34}\\,\\mathrm{cm}^{-2}\\mathrm{s}^{-1}$ will have to be replaced at the end of 2016. The new upgraded detector will have higher tracking efficiency and lower mass with four barrel layers and three forward/backward disks to provide a hit coverage up to absolute pseudorapidities of $\\mid\\eta\\mid<2.5$. In a second stage, in order to maintain its physics reach during the high luminosity phase of the LHC (HL-LHC), when the machine is expected to deliver an instantaneous luminosity of $5\\times 10^{34}\\,\\mathrm{cm}^{-2} \\mathrm{s}^{-1}$ for a total of $3000\\,\\mathrm{fb}^{-1}$, CMS will build a new tracker, comprising a completely new pixel detector and outer tracker. The ongoing R\\&D activities on both pixel and strip sensors are presented. The present status of the Inner and Outer Tracker projects are illustrated, and the possible perspectives are discussed.

Contextual Multi-Scale Region Convolutional 3D Network for Activity Detection

KAUST Repository

Bai, Yancheng

2018-01-28

Activity detection is a fundamental problem in computer vision. Detecting activities of different temporal scales is particularly challenging. In this paper, we propose the contextual multi-scale region convolutional 3D network (CMS-RC3D) for activity detection. To deal with the inherent temporal scale variability of activity instances, the temporal feature pyramid is used to represent activities of different temporal scales. On each level of the temporal feature pyramid, an activity proposal detector and an activity classifier are learned to detect activities of specific temporal scales. Temporal contextual information is fused into activity classifiers for better recognition. More importantly, the entire model at all levels can be trained end-to-end. Our CMS-RC3D detector can deal with activities at all temporal scale ranges with only a single pass through the backbone network. We test our detector on two public activity detection benchmarks, THUMOS14 and ActivityNet. Extensive experiments show that the proposed CMS-RC3D detector outperforms state-of-the-art methods on THUMOS14 by a substantial margin and achieves comparable results on ActivityNet despite using a shallow feature extractor.

Contextual Multi-Scale Region Convolutional 3D Network for Activity Detection

KAUST Repository

Bai, Yancheng; Xu, Huijuan; Saenko, Kate; Ghanem, Bernard

2018-01-01

Activity detection is a fundamental problem in computer vision. Detecting activities of different temporal scales is particularly challenging. In this paper, we propose the contextual multi-scale region convolutional 3D network (CMS-RC3D) for activity detection. To deal with the inherent temporal scale variability of activity instances, the temporal feature pyramid is used to represent activities of different temporal scales. On each level of the temporal feature pyramid, an activity proposal detector and an activity classifier are learned to detect activities of specific temporal scales. Temporal contextual information is fused into activity classifiers for better recognition. More importantly, the entire model at all levels can be trained end-to-end. Our CMS-RC3D detector can deal with activities at all temporal scale ranges with only a single pass through the backbone network. We test our detector on two public activity detection benchmarks, THUMOS14 and ActivityNet. Extensive experiments show that the proposed CMS-RC3D detector outperforms state-of-the-art methods on THUMOS14 by a substantial margin and achieves comparable results on ActivityNet despite using a shallow feature extractor.

VIPRAM_L1CMS: a 2-Tier 3D Architecture for Pattern Recognition for Track Finding

Energy Technology Data Exchange (ETDEWEB)

Hoff, J. R. [Fermilab; Joshi, Joshi,S. [Northwestern U.; Liu, Liu, [Fermilab; Olsen, J. [Fermilab; Shenai, A. [Fermilab

2017-06-15

In HEP tracking trigger applications, flagging an individual detector hit is not important. Rather, the path of a charged particle through many detector layers is what must be found. Moreover, given the increased luminosity projected for future LHC experiments, this type of track finding will be required within the Level 1 Trigger system. This means that future LHC experiments require not just a chip capable of high-speed track finding but also one with a high-speed readout architecture. VIPRAM_L1CMS is 2-Tier Vertically Integrated chip designed to fulfill these requirements. It is a complete pipelined Pattern Recognition Associative Memory (PRAM) architecture including pattern recognition, result sparsification, and readout for Level 1 trigger applications in CMS with 15-bit wide detector addresses and eight detector layers included in the track finding. Pattern recognition is based on classic Content Addressable Memories with a Current Race Scheme to reduce timing complexity and a 4-bit Selective Precharge to minimize power consumption. VIPRAM_L1CMS uses a pipelined set of priority-encoded binary readout structures to sparsify and readout active road flags at frequencies of at least 100MHz. VIPRAM_L1CMS is designed to work directly with the Pulsar2b Architecture.

CMS Hadron Endcap Calorimeter Upgrade Studies for Super-LHC

International Nuclear Information System (INIS)

Bilki, Burak

2011-01-01

When the Large Hadron Collider approaches Super-LHC conditions above a luminosity of 10 34 cm -2 s -1 , the scintillator tiles of the CMS Hadron Endcap calorimeters will lose their efficiencies. As a radiation hard solution, the scintillator tiles are planned to be replaced by quartz plates. In order to improve the efficiency of the photodetection, various methods were investigated including radiation hard wavelength shifters, p-terphenyl or 4% gallium doped zinc oxide. We constructed a 20 layer calorimeter prototype with pTp coated plates of size 20 cm x 20 cm, and tested the hadronic and the electromagnetic capabilities at the CERN H2 beam-line. The beam tests revealed a substantial light collection increase with pTp or ZnO:Ga deposited quartz plates. Here we report on the current R and D for a viable endcap calorimeter solution for CMS with beam tests and radiation damage studies.

CMS Connect

Science.gov (United States)

Balcas, J.; Bockelman, B.; Gardner, R., Jr.; Hurtado Anampa, K.; Jayatilaka, B.; Aftab Khan, F.; Lannon, K.; Larson, K.; Letts, J.; Marra Da Silva, J.; Mascheroni, M.; Mason, D.; Perez-Calero Yzquierdo, A.; Tiradani, A.

2017-10-01

The CMS experiment collects and analyzes large amounts of data coming from high energy particle collisions produced by the Large Hadron Collider (LHC) at CERN. This involves a huge amount of real and simulated data processing that needs to be handled in batch-oriented platforms. The CMS Global Pool of computing resources provide +100K dedicated CPU cores and another 50K to 100K CPU cores from opportunistic resources for these kind of tasks and even though production and event processing analysis workflows are already managed by existing tools, there is still a lack of support to submit final stage condor-like analysis jobs familiar to Tier-3 or local Computing Facilities users into these distributed resources in an integrated (with other CMS services) and friendly way. CMS Connect is a set of computing tools and services designed to augment existing services in the CMS Physics community focusing on these kind of condor analysis jobs. It is based on the CI-Connect platform developed by the Open Science Grid and uses the CMS GlideInWMS infrastructure to transparently plug CMS global grid resources into a virtual pool accessed via a single submission machine. This paper describes the specific developments and deployment of CMS Connect beyond the CI-Connect platform in order to integrate the service with CMS specific needs, including specific Site submission, accounting of jobs and automated reporting to standard CMS monitoring resources in an effortless way to their users.

National Science Foundation Assistant Director for Mathematics and Physical Sciences Tony Chan (USA) visiting CMS experiment on 23rd May 2007 with Spokesperson T. Virdee, Deputy Spokesperson R. Cousins, Advisor to CERN Director-General J. Ellis, US CMS Research Program Deputy Manager D. Marlow and FNAL D. Green

CERN Multimedia

Maximilien Brice

2007-01-01

National Science Foundation Assistant Director for Mathematics and Physical Sciences Tony Chan (USA) visiting CMS experiment on 23rd May 2007 with Spokesperson T. Virdee, Deputy Spokesperson R. Cousins, Advisor to CERN Director-General J. Ellis, US CMS Research Program Deputy Manager D. Marlow and FNAL D. Green

78 FR 42080 - Privacy Act of 1974; CMS Computer Match No. 2013-07; HHS Computer Match No. 1303; DoD-DMDC Match...

Science.gov (United States)

2013-07-15

... 1974; CMS Computer Match No. 2013-07; HHS Computer Match No. 1303; DoD-DMDC Match No. 18 AGENCY: Centers for Medicare & Medicaid Services (CMS), Department of Health and Human Services (HHS). ACTION... Act of 1974, as amended, this notice announces the establishment of a CMP that CMS plans to conduct...

78 FR 48169 - Privacy Act of 1974; CMS Computer Match No. 2013-02; HHS Computer Match No. 1306; DoD-DMDC Match...

Science.gov (United States)

2013-08-07

... 1974; CMS Computer Match No. 2013-02; HHS Computer Match No. 1306; DoD-DMDC Match No. 12 AGENCY: Department of Health and Human Services (HHS), Centers for Medicare & Medicaid Services (CMS). ACTION: Notice... of 1974, as amended, this notice establishes a CMP that CMS plans to conduct with the Department of...

PACE3 - front-end chip for the CMS Preshower

CERN Multimedia

Aspel, Paul

2003-01-01

This is PACE3 which is the front-end chip for the CMS Preshower. In fact PACE3 is the combination of two ASICs called Delta3 and PACEAM3. Delta3 is on the left and PACEAM3 is on the right. The two ASICs are bonded together and then packaged within a single 196 pin fpBGA package.

3D printed 20/30-GHz dual-band offset stepped-reflector antenna

DEFF Research Database (Denmark)

Menendez, Laura G.; Kim, Oleksiy S.; Persson, Frank

2015-01-01

with a peak directivity of 36.7 dB and 40.4 dB at 20 and 30 GHz, respectively; this corresponds to an aperture efficiency of 61 % and 64 %, respectively. These results demonstrate that 3D printing is a viable manufacturing technology for medium-sized high-frequency antennas....

Event Displays for the Visualization of CMS Events

CERN Document Server

Jones, Christopher Duncan

2010-01-01

During the last year the CMS experiment engaged in consolidation of its existing event display programs. The core of the new system is based on the Fireworks event display program which was by-design directly integrated with the CMS Event Data Model (EDM) and the light version of the software framework (FWLite). The Event Visualization Environment (EVE) of the ROOT framework is used to manage a consistent set of 3D and 2D views, selection, user-feedback and user-interaction with the graphics windows; several EVE components were developed by CMS in collaboration with the ROOT project. In event display operation simple plugins are registered into the system to perform conversion from EDM collections into their visual representations which are then managed by the application. Full event navigation and filtering as well as collection-level filtering is supported. The same data-extraction principle can also be applied when Fireworks will eventually operate as a service within the full software framework.

Event Display for the Visualization of CMS Events

Science.gov (United States)

Bauerdick, L. A. T.; Eulisse, G.; Jones, C. D.; Kovalskyi, D.; McCauley, T.; Mrak Tadel, A.; Muelmenstaedt, J.; Osborne, I.; Tadel, M.; Tu, Y.; Yagil, A.

2011-12-01

During the last year the CMS experiment engaged in consolidation of its existing event display programs. The core of the new system is based on the Fireworks event display program which was by-design directly integrated with the CMS Event Data Model (EDM) and the light version of the software framework (FWLite). The Event Visualization Environment (EVE) of the ROOT framework is used to manage a consistent set of 3D and 2D views, selection, user-feedback and user-interaction with the graphics windows; several EVE components were developed by CMS in collaboration with the ROOT project. In event display operation simple plugins are registered into the system to perform conversion from EDM collections into their visual representations which are then managed by the application. Full event navigation and filtering as well as collection-level filtering is supported. The same data-extraction principle can also be applied when Fireworks will eventually operate as a service within the full software framework.

Event Display for the Visualization of CMS Events

International Nuclear Information System (INIS)

Bauerdick, L A T; Eulisse, G; Jones, C D; McCauley, T; Osborne, I; Kovalskyi, D; Tadel, A Mrak; Muelmenstaedt, J; Tadel, M; Tu, Y; Yagil, A

2011-01-01

During the last year the CMS experiment engaged in consolidation of its existing event display programs. The core of the new system is based on the Fireworks event display program which was by-design directly integrated with the CMS Event Data Model (EDM) and the light version of the software framework (FWLite). The Event Visualization Environment (EVE) of the ROOT framework is used to manage a consistent set of 3D and 2D views, selection, user-feedback and user-interaction with the graphics windows; several EVE components were developed by CMS in collaboration with the ROOT project. In event display operation simple plugins are registered into the system to perform conversion from EDM collections into their visual representations which are then managed by the application. Full event navigation and filtering as well as collection-level filtering is supported. The same data-extraction principle can also be applied when Fireworks will eventually operate as a service within the full software framework.

Fireworks: A physics event display for CMS

International Nuclear Information System (INIS)

Kovalskyi, D.; Tadel, M.; Mrak-Tadel, A.; Bellenot, B.; Kuznetsov, V.; Jones, C.D.; Bauerdick, L.; Case, M.; Mulmenstadt, J.; Yagil, A.

2010-01-01

Fireworks is a CMS event display which is specialized for the physics studies case. This specialization allows us to use a stylized rather than 3D-accurate representation when appropriate. Data handling is greatly simplified by using only reconstructed information and ideal geometry. Fireworks provides an easy-to-use interface which allows a physicist to concentrate only on the data in which he is interested. Data is presented via graphical and textual views. Fireworks is built using the Eve subsystem of the CERN ROOT project and CMS's FWLite project. The FWLite project was part of CMS's recent code redesign which separates data classes into libraries separate from algorithms producing the data and uses ROOT directly for C++ object storage, thereby allowing the data classes to be used directly in ROOT.

Fireworks A Physics Event Display for CMS

CERN Document Server

Kovalskyi, D; Mrak-Tadel, A; Bellenot, B; Kuznetsov, V; Jones, C D; Bauerdick, L; Case, M; Mülmenstädt, J; Yagil, A

2010-01-01

Fireworks is a CMS event display which is specialized for the physics studies case. This specialization allows us to use a stylized rather than 3D-accurate representation when appropriate. Data handling is greatly simplified by using only reconstructed information and ideal geometry. Fireworks provides an easy-to-use interface which allows a physicist to concentrate only on the data in which he is interested. Data is presented via graphical and textual views. Fireworks is built using the Eve subsystem of the CERN ROOT project and CMS's FWLite project. The FWLite project was part of CMS's recent code redesign which separates data classes into libraries separate from algorithms producing the data and uses ROOT directly for C++ object storage, thereby allowing the data classes to be used directly in ROOT.

A new dawn for CMS

CERN Multimedia

2007-01-01

Supported by a gigantic crane and a factory-size room full of enthusiasm, the central barrel of CMS made its final journey underground on 28 February. The central section of the CMS detector starts its dramatic 10-hour descent underground.Several hours (and 100 metres) later, the massive barrel rests on the cavern floor. CMS scientists, journalists, photographers and members of the transport crew basked in the final rays of the 'solenoid-set' on 28 February as the central barrel of the CMS detector sinks below the horizon and began its ten-hour descent into the cavern 100 metres below. Thirteen metres long and weighing as much as five jumbo jets (1920 tonnes), the barrel is the largest of the 15 chunks of CMS detector that are being lowered one by one into the cavern. 'This is a challenging feat of engineering, as there are just 20 cm of leeway between the detector and the walls of the shaft,' said Austin Ball, Technical Coordinator of CMS. The section of the detector, which contains the solenoid of the magne...

Interactive graphics for the CMS experiment at the LHC

International Nuclear Information System (INIS)

Taylor, L.

1996-01-01

The ability to visualize the CMS detector and its response to physics is of great importance, both in the design evaluation and data analysis phases of the experiment. We describe the visualisation requirements of CMS and the implementation of the CMS interactive detector and event visualisation program, known as CMSCAN, which supports 3D viewing of the detector and events, as well as abstracted images, such as lego plots. It provides a high level of user interactivity, such as rotation, translation magnification, and visibility of the image, and communicates with the reconstruction program to allow the user to control the data processing and analysis. (author)

Photos from the CMS Photo Book

CERN Multimedia

Boreham, S

2008-01-01

Photos from the CMS Photo Book. Activities at Point 5 in Cessy, France, between 1998 - 2008. Images of assembly and Installation of the CMS detector: - Civil Engineering - Assembly in the Surface Building - Lowering of the Heavy Elements - Installing and connecting the CMS detector in the underground experiment These images illustrate the assembly, installation and commissioning of the CMS detector. They cover the activities at Point 5 in Cessy, France, between 1998 and 2008. CMS is one of the most complex scientific instruments ever built. It has taken about 20 years to go from conceptual design to the completion of construction of the CMS detector for the LHC start-up in September 2008. Accomplishing this has required the talents, efforts and resources of over 2500 scientists and engineers from about 180 institutions in 38 countries. caverns Compiled by: S. Cittolin, F. Marcastel and T.S. Virdee

R&D; towards future upgrade of the CMS RPC system

CERN Document Server

Pugliese, Gabriella

2016-01-01

The CMS experiment at the CERN Large Hadron Collider (LHC) is equipped with a redundant muon trigger system based on Drift Tubes Chambers (DT) in the barrel region and Cathode Strip Chamber (CSC) in the endcap regions and Resistive Plate Chambers (RPC) in both regions up to | η | = 1.6. In view of the High Luminosity LHC (HL-LHC) phase, to keep the same muon performance new muon stations will be installed in the forward region (1.6< | η | <2.4) and in the very forward region up to | η | = 2.8. The 3th and 4th stations will be equipped with a new generation of RPC with improved performance (iRPC), capable of handling the challenging con- ditions expected at the HL-LHC. An extensive R&D; program has been undertaken to define the detector design and related electronics that meet the HL-LHC requirements. A summary of iRPC performance results is here reported.

A new visitor centre for CMS

CERN Document Server

2001-01-01

At the inauguration of the new CMS visitor centre. The CMS experiment inaugurated a new visitor centre at its Cessy site on 14 June. This will allow the thousands of people who come to CERN each year to follow the construction of one the Laboratory's flagship experiments first-hand. CERN receives over 20,000 visitors each year. Until recently, many of them were taken on a guided tour of one of the LEP experiments. With the closure of LEP, however, trips underground are no longer possible, and the Visits' Service has put in place a number of other itineraries (Bulletin 46/2000). Since the CMS detector will be almost entirely constructed in a surface hall, it is now taking a big share of the limelight. The CMS visitor centre has been built on a platform overlooking CMS construction. It contains a set of clear descriptive posters describing the experiment, along with a video projection showing animations and movies about CMS construction. In the coming weeks, a display of CMS detector elements will be added, as...

CMS distributed data analysis with CRAB3

Science.gov (United States)

Mascheroni, M.; Balcas, J.; Belforte, S.; Bockelman, B. P.; Hernandez, J. M.; Ciangottini, D.; Konstantinov, P. B.; Silva, J. M. D.; Ali, M. A. B. M.; Melo, A. M.; Riahi, H.; Tanasijczuk, A. J.; Yusli, M. N. B.; Wolf, M.; Woodard, A. E.; Vaandering, E.

2015-12-01

The CMS Remote Analysis Builder (CRAB) is a distributed workflow management tool which facilitates analysis tasks by isolating users from the technical details of the Grid infrastructure. Throughout LHC Run 1, CRAB has been successfully employed by an average of 350 distinct users each week executing about 200,000 jobs per day. CRAB has been significantly upgraded in order to face the new challenges posed by LHC Run 2. Components of the new system include 1) a lightweight client, 2) a central primary server which communicates with the clients through a REST interface, 3) secondary servers which manage user analysis tasks and submit jobs to the CMS resource provisioning system, and 4) a central service to asynchronously move user data from temporary storage in the execution site to the desired storage location. The new system improves the robustness, scalability and sustainability of the service. Here we provide an overview of the new system, operation, and user support, report on its current status, and identify lessons learned from the commissioning phase and production roll-out.

Data Bookkeeping Service 3 - Providing event metadata in CMS

CERN Document Server

Giffels, Manuel; Riley, Daniel

2014-01-01

The Data Bookkeeping Service 3 provides a catalog of event metadata for Monte Carlo and recorded data of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN, Geneva. It comprises all necessary information for tracking datasets, their processing history and associations between runs, files and datasets, on a large scale of about $200,000$ datasets and more than $40$ million files, which adds up in around $700$ GB of metadata. The DBS is an essential part of the CMS Data Management and Workload Management (DMWM) systems, all kind of data-processing like Monte Carlo production, processing of recorded event data as well as physics analysis done by the users are heavily relying on the information stored in DBS.

Data Bookkeeping Service 3 - Providing Event Metadata in CMS

Energy Technology Data Exchange (ETDEWEB)

Giffels, Manuel [CERN; Guo, Y. [Fermilab; Riley, Daniel [Cornell U.

2014-01-01

The Data Bookkeeping Service 3 provides a catalog of event metadata for Monte Carlo and recorded data of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN, Geneva. It comprises all necessary information for tracking datasets, their processing history and associations between runs, files and datasets, on a large scale of about 200, 000 datasets and more than 40 million files, which adds up in around 700 GB of metadata. The DBS is an essential part of the CMS Data Management and Workload Management (DMWM) systems [1], all kind of data-processing like Monte Carlo production, processing of recorded event data as well as physics analysis done by the users are heavily relying on the information stored in DBS.

Validation of the CMS Magnetic Field Map

CERN Document Server

INSPIRE-00096921; Amapane, N.; Ball, A.; Curé, B.; Gaddi, A.; Gerwig, H.; Mulders, M.; Calvelli, V.; Hervé, A.; Loveless, R.

2014-10-26

The Compact Muon Solenoid (CMS) is a general purpose detector, designed to run at the highest luminosity at the CERN Large Hadron Collider (LHC). Its distinctive features include a 4-T superconducting solenoid with 6-m-diameter by 12.5-m-length free bore, enclosed inside a 10,000-ton return yoke made of construction steel. The return yoke consists of five dodecagonal three-layered barrel wheels and four end-cap disks at each end comprised of steel blocks up to 620 mm thick, which serve as the absorber plates of the muon detection system. To measure the field in and around the steel, a system of 22 flux loops and 82 three-dimensional (3-D) Hall sensors is installed on the return yoke blocks. A TOSCA 3-D model of the CMS magnet is developed to describe the magnetic field everywhere outside the tracking volume measured with the field-mapping machine. The magnetic field description is compared with the measurements and discussed.

Pharmacokinetics of Colistin Methansulphonate (CMS) and Colistin after CMS Nebulisation in Baboon Monkeys.

Science.gov (United States)

Marchand, Sandrine; Bouchene, Salim; de Monte, Michèle; Guilleminault, Laurent; Montharu, Jérôme; Cabrera, Maria; Grégoire, Nicolas; Gobin, Patrice; Diot, Patrice; Couet, William; Vecellio, Laurent

2015-10-01

The objective of this study was to compare two different nebulizers: Eflow rapid® and Pari LC star® by scintigraphy and PK modeling to simulate epithelial lining fluid concentrations from measured plasma concentrations, after nebulization of CMS in baboons. Three baboons received CMS by IV infusion and by 2 types of aerosols generators and colistin by subcutaneous infusion. Gamma imaging was performed after nebulisation to determine colistin distribution in lungs. Blood samples were collected during 9 h and colistin and CMS plasma concentrations were measured by LC-MS/MS. A population pharmacokinetic analysis was conducted and simulations were performed to predict lung concentrations after nebulization. Higher aerosol distribution into lungs was observed by scintigraphy, when CMS was nebulized with Pari LC® star than with Eflow Rapid® nebulizer. This observation was confirmed by the fraction of CMS deposited into the lung (respectively 3.5% versus 1.3%).CMS and colistin simulated concentrations in epithelial lining fluid were higher after using the Pari LC star® than the Eflow rapid® system. A limited fraction of CMS reaches lungs after nebulization, but higher colistin plasma concentrations were measured and higher intrapulmonary colistin concentrations were simulated with the Pari LC Star® than with the Eflow Rapid® system.

Evacuation drill at CMS

CERN Multimedia

Niels Dupont-Sagorin and Christoph Schaefer

2012-01-01

Training personnel, including evacuation guides and shifters, checking procedures, improving collaboration with the CERN Fire Brigade: the first real-life evacuation drill at CMS took place on Friday 3 February from 12p.m. to 3p.m. in the two caverns located at Point 5 of the LHC.   CERN personnel during the evacuation drill at CMS. Evacuation drills are required by law and have to be organized periodically in all areas of CERN, both above and below ground. The last drill at CMS, which took place in June 2007, revealed some desiderata, most notably the need for a public address system. With this equipment in place, it is now possible to broadcast audio messages from the CMS control room to the underground areas.   The CMS Technical Coordination Team and the GLIMOS have focused particularly on preparing collaborators for emergency situations by providing training and organizing regular safety drills with the HSE Unit and the CERN Fire Brigade. This Friday, the practical traini...

The CMS Higgs Boson Goose Game

CERN Document Server

Cavallo, Francesca Romana

2015-01-01

Building and operating the CMS Detector is a complicated endeavour! Now, more than 20 years after the detector was conceived, the CMS Bologna group proposes to follow the steps of this challenging project by playing The Higgs Boson Goose Game, illustrating CMS activities and goals.The concept of the game is inspired by the traditional Game of the Goose. The underlying idea is that the progress of building and operating a detector at the LHC is similar to the progress of the pawns on the game board it is fast at times, bringing rewards and satisfaction, while sometimes unexpected problems cause delays or even a step back requiring CMS scientists to use all of their skill and creativity to devise new solutions.

Riccardo Ranieri (left) receives the 2003 CMS Thesis Award from Lorenzo Foà, the chairperson of the CMS collaboration board, at the awards ceremony

CERN Multimedia

Maximilien Brice

2004-01-01

2003 CMS Thesis Award was presented to Riccardo Ranieri for his PhD thesis "Trigger selection of WH -> mu.nu bb (bar) with CMS". Ranieri received his PhD from the University of Florence and was supervised by Carlo Civinini.

CP violation in CMS expected performance

CERN Document Server

Stefanescu, J

1999-01-01

The CMS experiment can contribute significantly to the measurement of the CP violation asymmetries. A recent evaluation of the expected precision on the CP violation parameter sin 2 beta in the channel B /sub d//sup 0/ to J/ psi $9 K/sub s//sup 0/ has been performed using a simulation of the CMS tracker including full pattern recognition. CMS has also studied the possibility to observe CP violation in the decay channel B/sub s//sup 0/ to J/ psi phi . The $9 results of these studies are reviewed. (7 refs).

Noninvasive Measurement of EKG Properties of 3D Artificial Heart Muscle

Directory of Open Access Journals (Sweden)

Betsy H. Salazar

2017-06-01

Full Text Available Developing and testing a custom fabricated 16-electrode noninvasive direct contact system was necessary to assess the electrical properties of bioengineered heart muscle and to further evaluate the efficacy of cardiac constructs. By culturing neonatal rat primary cardiac cells on a fibrin gel, we constructed 3D artificial heart muscle (3D-AHM, as described in previous studies, which were used in validating this novel system. Electrical and mechanical functional assessment of the tissues was performed, which yielded contractile forces of the tissues, electrical field potential characteristics, and tissue conduction velocities (CV (20–170 cm/s. Immunohistological evaluation revealed the formation of cardiac tissue structures and cardiomyocyte proliferation. EKG data analysis also yielded time delays between signals in the range of 0–38 ms with electrical maps showing some evidence of synchronous contraction within the fabricated tissues. This study demonstrates the effectiveness and practicality of our novel EKG measuring system to acquire distinct electrical metrics of 3D-AHM, which will aid in increasing the viability and applicability of cardiac tissue constructs.

Model of CMS Tracker

CERN Multimedia

Breuker

1999-01-01

A full scale CMS tracker mock-up exposed temporarily in the hall of building 40. The purpose of the mock-up is to study the routing of services, assembly and installation. The people in front are only a small fraction of the CMS tracker collaboration. Left to right : M. Atac, R. Castaldi, H. Breuker, D. Pandoulas,P. Petagna, A. Caner, A. Carraro, H. Postema, M. Oriunno, S. da Mota Silva, L. Van Lancker, W. Glessing, G. Benefice, A. Onnela, M. Gaspar, G. M. Bilei

Effect of Processing Parameters on 3D Printing of Cement - based Materials

Science.gov (United States)

Lin, Jia Chao; Wang, Jun; Wu, Xiong; Yang, Wen; Zhao, Ri Xu; Bao, Ming

2018-06-01

3D printing is a new study direction of building method in recent years. The applicability of 3D printing equipment and cement based materials is analyzed, and the influence of 3D printing operation parameters on the printing effect is explored in this paper. Results showed that the appropriate range of 3D printing operation parameters: print height/nozzle diameter is between 0.4 to 0.6, the printing speed 4-8 cm/s with pumpage 9 * 10-2 m 3/ h.

The anti-CMS technique for genome-wide mapping of 5-hydroxymethylcytosine.

Science.gov (United States)

Huang, Yun; Pastor, William A; Zepeda-Martínez, Jorge A; Rao, Anjana

2012-10-01

5-Hydroxymethylcytosine (5hmC) is a recently discovered base in the mammalian genome, produced upon oxidation of 5-methylcytosine (5mC) in a process catalyzed by TET proteins. The biological functions of 5hmC and further oxidation products of 5mC are under intense investigation, as they are likely intermediates in DNA demethylation pathways. Here we describe a novel protocol to profile 5hmC at a genome-wide scale. This approach is based on sodium bisulfite-mediated conversion of 5hmC to cytosine-5-methylenesulfonate (CMS); CMS-containing DNA fragments are then immunoprecipitated using a CMS-specific antiserum. The anti-CMS technique is highly specific with a low background, and is much less dependent on 5hmC density than anti-5hmC immunoprecipitation (IP). Moreover, it does not enrich for CA and CT repeats, as noted for 5hmC DNA IP using antibodies to 5hmC. The anti-CMS protocol takes 3 d to complete.

Award for the best CMS thesis

CERN Multimedia

2003-01-01

The 2002 CMS PhD Thesis Award for has been presented to Giacomo Luca Bruno for his thesis defended at the University of Pavia in Italy and entitled "The RPC detectors and the muon system for the CMS experiment at the LHC". His work was supervised by Sergio P. Ratti from the University of Pavia. Since April 2002, Giacomo has been employed as a research fellow by CERN's EP Division. He continues to work on CMS in the areas of data acquisition and physics reconstruction and selection. Last Monday he received a commemorative engraved plaque from Lorenzo Foà, chairman of the CMS Collaboration Board. He will also receive expenses paid to an international physics conference to present his thesis results. Giacomo Luca Bruno with Lorenzo Foà

16 CFR Appendix D to Part 436 - Sample Item 20(3) Table-Status of Franchise Outlets

Science.gov (United States)

2010-01-01

... 16 Commercial Practices 1 2010-01-01 2010-01-01 false Sample Item 20(3) Table-Status of Franchise Outlets D Appendix D to Part 436 Commercial Practices FEDERAL TRADE COMMISSION TRADE REGULATION RULES... Item 20(3) Table—Status of Franchise Outlets Status of Franchise Outlets For years 2004 to 2006 Column...

Mixed Matrix Carbon Molecular Sieve and Alumina (CMS-Al2O3) Membranes.

Science.gov (United States)

Song, Yingjun; Wang, David K; Birkett, Greg; Martens, Wayde; Duke, Mikel C; Smart, Simon; Diniz da Costa, João C

2016-07-29

This work shows mixed matrix inorganic membranes prepared by the vacuum-assisted impregnation method, where phenolic resin precursors filled the pore of α-alumina substrates. Upon carbonisation, the phenolic resin decomposed into several fragments derived from the backbone of the resin matrix. The final stages of decomposition (>650 °C) led to a formation of carbon molecular sieve (CMS) structures, reaching the lowest average pore sizes of ~5 Å at carbonisation temperatures of 700 °C. The combination of vacuum-assisted impregnation and carbonisation led to the formation of mixed matrix of CMS and α-alumina particles (CMS-Al2O3) in a single membrane. These membranes were tested for pervaporative desalination and gave very high water fluxes of up to 25 kg m(-2) h(-1) for seawater (NaCl 3.5 wt%) at 75 °C. Salt rejection was also very high varying between 93-99% depending on temperature and feed salt concentration. Interestingly, the water fluxes remained almost constant and were not affected as feed salt concentration increased from 0.3, 1 and 3.5 wt%.

Distributing CMS Data between the Florida T2 and T3 Centers using Lustre and Xrootd-fs

International Nuclear Information System (INIS)

Kaganas, G; Rodriguez, J L; Cheng, M; Avery, P; Bourilkov, D; Fu, Y; Palencia, J

2014-01-01

We have developed remote data access for large volumes of data over the Wide Area Network based on the Lustre filesystem and Kerberos authentication for security. In this paper we explore a prototype for two-step data access from worker nodes at Florida Tier3 centers, located behind a firewall and using a private network, to data hosted on the Lustre filesystem at the University of Florida CMS Tier2 center. At the Tier3 center we use a client which mounts securely the Lustre filesystem and hosts an XrootD server. The worker nodes access the data from the Tier3 client using POSIX compliant tools via the XrootD-fs filesystem. We perform scalability tests with up to 200 jobs running in parallel on the Tier3 worker nodes.

The CMS conductor

CERN Document Server

Horváth, I L; Marti, H P; Neuenschwander, J; Smith, R P; Fabbricatore, P; Musenich, R; Calvo, A; Campi, D; Curé, B; Desirelli, Alberto; Favre, G; Riboni, P L; Sgobba, Stefano; Tardy, T; Sequeira-Lopes-Tavares, S

2000-01-01

The Compact Muon Solenoid (CMS) is one of the experiments, which are being designed in the framework of the Large Hadron Collider (LHC) project at CERN, the design field of the CMS magnet is 4 T, the magnetic length is 13 m and the aperture is 6 m. This high magnetic field is achieved by means of a 4 layer, 5 modules superconducting coil. The coil is wound from an Al-stabilized Rutherford type conductor. The nominal current of the magnet is 20 kA at 4.5 K. In the CMS coil the structural function is ensured, unlike in other existing Al-stabilized thin solenoids, both by the Al-alloy reinforced conductor and the external former. In this paper the retained manufacturing process of the 50-km long reinforced conductor is described. In general the Rutherford type cable is surrounded by high purity aluminium in a continuous co-extrusion process to produce the Insert. Thereafter the reinforcement is joined by Electron Beam Welding to the pure Al of the insert, before being machined to the final dimensions. During the...

The CMS Journey to LHC Physics

CERN Document Server

CERN. Geneva

2007-01-01

A history of construction, encompassing the R&D and challenges faced over the last decade and a half, will be recalled using selected examples. CMS is currently in the final stages of installation and commissioning is gathering pace. After a short status report of where CMS stands today some of the expected (great) physics to come will be outlined. * Tea & coffee will be served at 16:00.

42 CFR 405.874 - Appeals of CMS or a CMS contractor.

Science.gov (United States)

2010-10-01

... 42 Public Health 2 2010-10-01 2010-10-01 false Appeals of CMS or a CMS contractor. 405.874 Section... Part B Program § 405.874 Appeals of CMS or a CMS contractor. A CMS contractor's (that is, a carrier... supplier enrollment application. If CMS or a CMS contractor denies a provider's or supplier's enrollment...

The CMS "Higgs Boson Goose Game" Poster

CERN Multimedia

Davis, Siona Ruth

Building and operating the CMS Detector is a complicated endeavour! Now, more than 20 years after the detector was conceived, the CMS Bologna group proposes to follow the steps of this challenging project by playing "The Higgs Boson Goose Game", illustrating CMS activities and goals. The concept of the game is inspired by the traditional "Game of the Goose". The underlying idea is that the progress of building and operating a detector at the LHC is similar to the progress of the pawns on the game board: it is fast at times, bringing rewards and satisfaction, while sometimes unexpected problems cause delays or even a step back requiring CMS scientists to use all of their skill and creativity to devise new solutions.

CMS Collaboration

International Nuclear Information System (INIS)

Faridah Mohammad Idris; Wan Ahmad Tajuddin Wan Abdullah; Zainol Abidin Ibrahim

2013-01-01

Full-text: CMS Collaboration is an international scientific collaboration located at European Organization for Nuclear Research (CERN), Switzerland, dedicated in carried out research on experimental particle physics. Consisting of 179 institutions from 41 countries from all around the word, CMS Collaboration host a general purpose detector for example the Compact Muon Solenoid (CMS) for members in CMS Collaboration to conduct experiment from the collision of two proton beams accelerated to a speed of 8 TeV in the LHC ring. In this paper, we described how the CMS detector is used by the scientist in CMS Collaboration to reconstruct the most basic building of matter. (author)

Diffusion MRI and MR spectroscopy reveal microstructural and metabolic brain alterations in chronic mild stress exposed rats: A CMS recovery study.

Science.gov (United States)

Khan, Ahmad Raza; Hansen, Brian; Wiborg, Ove; Kroenke, Christopher D; Jespersen, Sune Nørhøj

2018-02-15

Chronic mild stress (CMS) induced depression elicits several debilitating symptoms and causes a significant economic burden on society. High variability in the symptomatology of depression poses substantial impediment to accurate diagnosis and therapy outcome. CMS exposure induces significant metabolic and microstructural alterations in the hippocampus (HP), prefrontal cortex (PFC), caudate-putamen (CP) and amygdala (AM), however, recovery from these maladaptive changes are limited and this may provide negative effects on the therapeutic treatment and management of depression. The present study utilized anhedonic rats from the unpredictable CMS model of depression to study metabolic recovery in the ventral hippocampus (vHP) and microstructural recovery in the HP, AM, CP, and PFC. The study employed 1 H MR spectroscopy ( 1 H MRS) and in-vivo diffusion MRI (d-MRI) at the age of week 18 (week 1 post CMS exposure) week 20 (week 3 post CMS) and week 25 (week 8 post CMS exposure) in the anhedonic group, and at the age of week 18 and week 22 in the control group. The d-MRI data have provided an array of diffusion tensor metrics (FA, MD, AD, and RD), and fast kurtosis metrics (MKT, W L and W T ). CMS exposure induced a significant metabolic alteration in vHP, and significant microstructural alterations were observed in the HP, AM, and PFC in comparison to the age match control and within the anhedonic group. A significantly high level of N-acetylaspartate (NAA) was observed in vHP at the age of week 18 in comparison to age match control and week 20 and week 25 of the anhedonic group. HP and AM showed significant microstructural alterations up to the age of week 22 in the anhedonic group. PFC showed significant microstructural alterations only at the age of week 18, however, most of the metrics showed significantly higher value at the age of week 20 in the anhedonic group. The significantly increased NAA concentration may indicate impaired catabolism due to astrogliosis or

Plasma and milk concentrations of vitamin D3 and 25-hydroxy vitamin D3 following intravenous injection of vitamin D3 or 25-hydroxy vitamin D3.

OpenAIRE

Hidiroglou, M; Knipfel, J E

1984-01-01

Plasma levels of vitamin D3 or 25-hydroxyvitamin D3 in ewes after administration of a single massive intravenous dose of vitamin D3 (2 X 10(6) IU) or 25-hydroxy vitamin D3 (5 mg) were determined at zero, one, two, three, five, ten and 20 days postinjection. In six ewes injected with vitamin D3 conversion of vitamin D3 to 25-hydroxy vitamin D3 resulted in a six-fold increase in the plasma 25-hydroxy vitamin D3 level within one day. Elevated levels were maintained until day 10 but by day 20 a s...

CMS Detector Posters

CERN Multimedia

2016-01-01

CMS Detector posters (produced in 2000): CMS installation CMS collaboration From the Big Bang to Stars LHC Magnetic Field Magnet System Trackering System Tracker Electronics Calorimetry Eletromagnetic Calorimeter Hadronic Calorimeter Muon System Muon Detectors Trigger and data aquisition (DAQ) ECAL posters (produced in 2010, FR & EN): CMS ECAL CMS ECAL-Supermodule cooling and mechatronics CMS ECAL-Supermodule assembly

Unigene BLAST: CBRC-RNOR-20-0133 [SEVENS

Lifescience Database Archive (English)

Full Text Available CBRC-RNOR-20-0133 gnl|UG|Rn#S14181288 UI-R-DO1-cms-c-10-0-UI.s1 UI-R-DO1 Rattus nor...vegicus cDNA clone UI-R-DO1-cms-c-10-0-UI 3', mRNA sequence /clone=UI-R-DO1-cms-c-10-0-UI /clone_end=3' /gb=BQ202827 /gi=20419292 /ti=154455115 /ug=Rn.83937 /len=645 0.001 44% ...

47 CFR 10.230 - New CMS providers participation in CMAS.

Science.gov (United States)

2010-10-01

... 47 Telecommunication 1 2010-10-01 2010-10-01 false New CMS providers participation in CMAS. 10.230... Election to Participate in Commercial Mobile Alert System § 10.230 New CMS providers participation in CMAS. CMS providers who initiate service at a date after the election procedure provided for in § 10.210(d...

CMS Factsheet

CERN Multimedia

Lapka, Marzena; Rao, Achintya

2016-01-01

CMS Factsheets: containing facts about the CMS collaboration and detector. Printed copies of the English version are available from the CMS Secretariat. Responsible for translations: English only - E.Gibney (updated 2015)

Results of 3D photogrammetry on the CMS barrel yoke

International Nuclear Information System (INIS)

Goudard, R.; Humbertclaude, C.; Nummiaro, K.

1999-01-01

The CMS (Compact Muon Solenoid) detector of the new LHC will be built till 2005 at CERN in Geneva. The Barrel Yoke survey has been decided to be done mostly by photogrammetry. After this first measurement, it has been proved that a practical simulation and a study of adapted tools and procedures were helpful for measurement on such a large object. Using only conventional surveying methods would have been impossible with such constraints. The most important points were the high required accuracy compared to the size of the object, the connection of the two planes, the time intervention, the restricted factory environment and the impossibility for having any outside network. The photogrammetric method was considered to be the best way to survey the Barrel Yoke ring. Since the required precision has been reached at all levels with the first full Barrel measurements, the procedure is validated for the four remaining Barrels in the factory and afterwards again at CERN. This project was challenging due to the size of the object, the required accuracy and the lack of practical references in the field of digital industrial photogrammetry. This method is a new step for using the three dimensional photogrammetric measurements on large objects. (authors)

Effect of drought stress on male fertility restoration in A3 CMS-inducing cytoplasm of sorghum

Directory of Open Access Journals (Sweden)

Valentin V. Kozhemyakin

2017-08-01

Full Text Available Use of cytoplasmic male sterility (CMS in hybrid breeding requires effective male fertility-restoring lines. In sorghum, very few restoring lines that can restore fertility in A3 CMS have been reported. To identify the reasons for this deficiency, F1 and F2 hybrids of an A3 CMS line crossed with the line IS1112C, a donor of fertility-restoring (Rf genes for A3 cytoplasm, and testcrosses of fertile plants to A3 CMS lines were grown under contrasting water availability regimes in dryland and irrigated field plots. In the irrigated plots the frequency of fertile plants in testcrosses was twice that in dryland plots (P < 0.05. Fertile plants from the F2 family grown in the irrigated plots showed significantly higher restoration ability than fertile plants from the same family grown in dryland plots. F3 plants from the F2 family grown in irrigated plots yielded on average a sixfold higher frequency of fertile plants in testcrosses than F3 plants derived from dryland plots (P < 0.01. Fertility of testcross hybrids correlated negatively with air vapor pressure deficit (VPD at flowering (r = −0.96; P < 0.01 suggesting that VPD is a trigger for downregulation of Rf genes for A3 cytoplasm.

CMS-Wave

Science.gov (United States)

2015-10-30

Coastal Inlets Research Program CMS -Wave CMS -Wave is a two-dimensional spectral wind-wave generation and transformation model that employs a forward...marching, finite-difference method to solve the wave action conservation equation. Capabilities of CMS -Wave include wave shoaling, refraction... CMS -Wave can be used in either on a half- or full-plane mode, with primary waves propagating from the seaward boundary toward shore. It can

Progress on CMS detector lowering

CERN Multimedia

2006-01-01

It was an amazing engineering challenge - the lowering of the first hugeendcap disc (YE+3) of the CMS detector slowly and carefully 100 metres underground. The spectacular descent took place on 30 November and was documented by a film crew from Reuters news group. The uniquely shaped slice is 16 m high, about 50 cm thick, and weighs 400 tonnes. It is one of 15 sections that make up the complete CMS detector. The solid steel structure of the disc forms part of the magnet return yoke and is equipped on both sides with muon chambers. A special gantry crane lowered the element, with just 20 cm of leeway between the edges of the detector and the walls of the shaft! On 12 December, a further section of the detector (YE+2) containing the cathode strip chamber made the 10-hour journey underground. This piece is 16 m high and weighs 880 tonnes. There are now four sections of the detector in the experimental cavern, with a further 11 to follow. The endcap disc YE+3 (seen in the foreground) begins its journey down the ...

The CMS Pixel Detector Upgrade and R\\&D for the High Luminosity LHC

CERN Document Server

Viliani, Lorenzo

2017-01-01

The High Luminosity Large Hadron Collider (HL-LHC) at CERN is expected to collide protons at a centre-of-mass energy of 14\\,TeV and to reach an unprecedented peak instantaneous luminosity of $5 \\times 10^{34}\\,{\\rm cm}^{-2} {\\rm s}^{-1}$ with an average number of pileup events of 140. This will allow the ATLAS and CMS experiments to collect integrated luminosities of up to $3000\\,{\\rm fb}^{-1}$ during the project lifetime. To cope with this extreme scenario the CMS detector will be substantially upgraded before starting the HL-LHC, a plan known as CMS Phase-2 Upgrade. In the upgrade the entire CMS silicon pixel detector will be replaced and the new detector will feature increased radiation hardness, higher granularity and capability to handle higher data rate and longer trigger latency. In this report the Phase-2 Upgrade of the CMS silicon pixel detector will be reviewed, focusing on the features of the detector layout and on the development of new pixel devices.

CMS Forward Calorimetry R&D

Energy Technology Data Exchange (ETDEWEB)

Bilki, Burak [Univ. of Iowa, Iowa City, IA (United States); Argonne National Lab. (ANL), Argonne, IL (United States)

2013-11-11

This is a technical scope of work (TSW) between the Fermi National Accelerator Laboratory (Fermilab) and the experimenters of the CMS Forward Calorimetry Taskforce (FCAL group) who have committed to participate in beam tests to be carried out during the 2013-2016 Fermilab Test Beam Facility program. The TSW is intended primarily for the purpose of recording expectations for budget estimates and work allocations for Fermilab, the funding agencies and the participating institutions. It reflects an arrangement that currently is satisfactory to the parties; however, it is recognized and anticipated that changing circumstances of the evolving research program will necessitate revisions. The parties agree to modify this scope of work to reflect such required adjustments. Actual contractual obligations will be set forth in separate documents.

CMS AWARDS

CERN Multimedia

Steven Lowette

Working under great time pressure towards a common goal in gradual steps can sometimes cause us to forget to take a step back, and celebrate what marvels have been achieved. A general need was felt within CMS to expand the recognition for our young scientists that made outstanding, well recognized and creative contributions to CMS, which served to significantly advance the performance of CMS as a complete and powerful experiment. Therefore, the Collaboration Board endorsed in March 2009 a proposal from the CB Chair and Advisory Group to award each year the newly created "CMS Achievement Award" to fourteen graduate students and postdocs that made exceptional contributions to the Tracker, ECAL, HCAL and Muon subdetectors as well as the TriDAS project, the Commissioning of CMS and the Offline Software and Computing projects. It was also agreed that there was a need to go back in time, and retroactively attribute awards for the years 2007 and 2008 when CMS went from a bare cavern to a detect...

CMS Young Researchers Award 2013 and Fundamental Physics Scholars Award from the CMS Experiment

CERN Multimedia

Lapka, Marzena

2014-01-01

Photo 2: CMS Fundamental Physics Scholars (FPSs) 1st prize: Joosep Pata, from Estonian National Institue of Chemical Physics and Biophysics / Photo 1 and 3: CMS Young Researchers Award. From left to right: Guido Tonelli, Colin Bernet, Andre David, Oliver Gutsche, Dmytro Kovalskyi, Andrea Petrucci, Joe Incandela and Jim Virdee

Small pitch pixel sensors for the CMS Phase II upgrade

CERN Document Server

AUTHOR|(CDS)2069790

2016-01-01

The CMS collaboration has undertaken two sensor R\\&D programs on thin n-in-p planar and 3D silicon sensor technologies. To cope with the increase in instantaneous luminosity, the pixel area has to be reduced to approximately 2500 $\\mu$m$^{2}$ to keep the occupancy at the percent level. Suggested pixel cell geometries to match this requirement are {50$\\times$50 }$\\mu$...

42 CFR 422.210 - Assurances to CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Assurances to CMS. 422.210 Section 422.210 Public...) MEDICARE PROGRAM MEDICARE ADVANTAGE PROGRAM Relationships With Providers § 422.210 Assurances to CMS. (a) Assurances to CMS. Each organization will provide assurance satisfactory to the Secretary that the...

R&D for a Dedicated Fast Timing Layer in the CMS Endcap Upgrade

CERN Document Server

INSPIRE-00135761

2014-01-01

The PhaseII Upgrades of CMS are being planned for the High Luminosity LHC (HL-LHC) era when the mean number of interactions per beam crossing ("in-time pileup") is expected to reach ~140-200. The potential backgrounds arising from mis-associated jets and photon showers, for example, during event reconstruction could be reduced if physics objects are tagged with an "event time". This tag is fully complementary to the "event vertex" which is already commonly used to reduce mis-reconstruction. Since the tracking vertex resolution is typically ~10^{-3} (50 micron/4.8cm) of the rms vertex distribution, whereas only ~10^{-1} (i.e. 20 vs.170 picoseconds (psec)) is demonstrated for timing, it is often assumed that only photon (i.e. EM calorimeter or shower-max) timing is of interest. We show that the optimal solution will likely be a single timing layer which measures both charged particle and photon time (a pre-shower layer).

Faces of CMS: Photomosaic (September 2013, low-resolution)

CERN Multimedia

Antonelli, Jamie

2013-01-01

The "Faces of CMS" photomosaic project aims to show the human element of the CMS Experiment. Most of the images for public outreach show the experimental equipment of CMS or physics results and collision displays. With a collaboration of around 3,000 people scattered around the globe, it's difficult to present the members of CMS in any one image. We asked any interested CMS members to sign up for the project, and allow us to use their photographs. The resulting photo mosaic contains the faces of 1,271 CMS members.

42 CFR 422.510 - Termination of contract by CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Termination of contract by CMS. 422.510 Section 422... Advantage Organizations § 422.510 Termination of contract by CMS. (a) Termination by CMS. CMS may at any time terminate a contract if CMS determines that the MA organization meets any of the following: (1...

Lorentz angle measurements as part of the sensor R\\&D for the CMS Tracker upgrade

CERN Document Server

Nurnberg, Andreas Matthias

2012-01-01

$200 m^2$ silicon strip tracker was designed to withstand the radiation of 10 years of LHC operation. The foreseen high luminosity upgrade of the LHC imposes even higher demands on the radiation tolerance and thus requires the construction of a new tracking detector. To determine the properties of different silicon materials and production processes, a campaign has been started by the CMS Tracker Collaboration to identify the most promising candidate material for the new CMS tracker. The silicon sensors of the CMS tracker are operated in a 3.8 T magnetic field. Charges created by traversing ionizing particles inside the active sensor volume are deflected by the Lorentz force. The Lorentz angle, under which the charge drifts through the sensor, is strongly dependent on the mobility, which in turn depends on the electric field and may depend on the radiation damage created by the particles produced by the LHC. Studying this is ...

CMS General Poster 2009 : to raise awareness of CMS, the CMS detector, its parts and people

CERN Multimedia

CMS outreach

2012-01-01

A poster which is identical to the two inside pages of the CMS brochure. The poster contains an image of a cross section of the CMS detector, explanation of detector parts, the aims of the CMS experiment and numbers of scientists and institutions associated with the experiment.

Quantitative proteomic analysis of CMS-related changes in Honglian CMS rice anther.

Science.gov (United States)

Sun, Qingping; Hu, Chaofeng; Hu, Jun; Li, Shaoqing; Zhu, Yingguo

2009-10-01

Honglian (HL) cytoplasmic male sterility (CMS) is one of the rice CMS types and has been widely used in hybrid rice production in China. The CMS line (Yuetai A, YTA) has a Yuetai B (maintainer line, YTB) nuclear genome, but has a rearranged mitochondrial (mt) genome consisting of Yuetai B. The fertility of hybrid (HL-6) was restored by restorer gene in nuclear genome of restorer line (9311). We used isotope-code affinity tag (ICAT) technology to perform the protein profiling of uninucleate stage rice anther and identify the CMS-HL related proteins. Two separate ICAT analyses were performed in this study: (1) anthers from YTA versus anthers from YTB, and (2) anthers from YTA versus anthers from HL-6. Based on the two analyses, a total of 97 unique proteins were identified and quantified in uninucleate stage rice anther under the error rate of less than 10%, of which eight proteins showed abundance changes of at least twofold between YTA and YTB. Triosephosphate isomerase, fructokinase II, DNA-binding protein GBP16 and ribosomal protein L3B were over-expressed in YTB, while oligopeptide transporter, floral organ regulator 1, kinase and S-adenosyl-L: -methionine synthetase were over-expressed in YTA. Reduction of the proteins associated with energy production and lesser ATP equivalents detected in CMS anther indicated that the low level of energy production played an important role in inducing CMS-HL.

CMS: Present status, limitations, and upgrade plans

International Nuclear Information System (INIS)

Cheung, H.W.K.

2011-01-01

An overview of the CMS upgrade plans will be presented. A brief status of the CMS detector will be given, covering some of the issues we have so far experienced. This will be followed by an overview of the various CMS upgrades planned, covering the main motivations for them, and the various R and D efforts for the possibilities under study. The CMS detector has been working extremely well since the start of data-taking at the LHC as is evidenced by the numerous excellent results published by CMS and presented at this workshop and recent conferences. Less well documented are the various issues that have been encountered with the detector. In the spirit of this workshop I will cover some of these issues with particular emphasis on problems that motivate some of the upgrades to the CMS detector for this decade of data-taking. Though the CMS detector has been working extremely well and expectations are great for making the most of the LHC luminosity, there have been a number of issues encountered so far. Some of these have been described and while none currently presents a problem for physics performance, some of them are expected to become more problematic, especially at the highest Phase 1 luminosities for which the majority of the integrated luminosity will be collected. These motivate upgrades for various parts of the CMS detector so that the current excellent physics performance can be maintained or even surpassed in the realm of the highest Phase 1 luminosities.

Opportunistic usage of the CMS online cluster using a cloud overlay

CERN Document Server

Chaze, Olivier; Andronidis, Anastasios; Behrens, Ulf; Branson, James; Brummer, Philipp; Contescu, Alexandru-Cristian; Cittolin, Sergio; Craigs, Benjamin; Darlea, Georgiana-Lavinia; Deldicque, Christian; Demiragli, Zeynep; Dobson, M; Doualot, Nicolas; Erhan, Samim; Fulcher, Jonathan Richard; Gigi, Dominique; Glege, Frank; Gomez-Ceballos, Guillelmo; Hegeman, Jeroen; Holzner, Andre Georg; Jimenez-Estupiñán, Raul; Masetti, Lorenzo; Meijers, Frans; Meschi, Emilio; Mommsen, Remigius; Morovic, Srecko; O'Dell, Vivian; Orsini, Luciano; Paus, Christoph; Pieri, Marco; Racz, Attila; Sakulin, Hannes; Schwick, Christoph; Reis, Thomas; Simelevicius, Dainius; Zejdl, Petr

2016-01-01

After two years of maintenance and upgrade, the Large Hadron Collider (LHC), the largest and most powerful particle accelerator in the world, has started its second three year run. Around 1500 computers make up the CMS (Compact Muon Solenoid) Online cluster. This cluster is used for Data Acquisition of the CMS experiment at CERN, selecting and sending to storage around 20 TBytes of data per day that are then analysed by the Worldwide LHC Computing Grid (WLCG) infrastructure that links hundreds of data centres worldwide. 3000 CMS physicists can access and process data, and are always seeking more computing power and data. The backbone of the CMS Online cluster is composed of 16000 cores which provide as much computing power as all CMS WLCG Tier1 sites (352K HEP-SPEC-06 score in the CMS cluster versus 300K across CMS Tier1 sites). The computing power available in the CMS cluster can significantly speed up the processing of data, so an effort has been made to allocate the resources of the CMS Online cluster to t...

Measuring the Magnetic Flux Density in the CMS Steel Yoke

CERN Document Server

Klyukhin, V I; Ball, A; Curé, B; Gaddi, A; Gerwig, H; Hervé, A; Mulders, M; Loveless, R

2012-01-01

The Compact Muon Solenoid (CMS) is a general purpose detector, designed to run at the highest luminosity at the CERN Large Hadron Collider (LHC). Its distinctive features include a 4 T superconducting solenoid with 6-m-diameter by 12.5-m-length free bore, enclosed inside a 10000-ton return yoke made of construction steel. The return yoke consists of five dodecagonal three-layered barrel wheels and four end-cap disks at each end comprised of steel blocks up to 620 mm thick, which serve as the absorber plates of the muon detection system. Accurate characterization of the magnetic field everywhere in the CMS detector is required. To measure the field in and around the steel, a system of 22 flux-loops and 82 3-D Hall sensors is installed on the return yoke blocks. Fast discharges of the solenoid (190 s time-constant) made during the CMS magnet surface commissioning test at the solenoid central fields of 2.64, 3.16, 3.68 and 4.01 T were used to induce voltages in the flux-loops. The voltages are measured on-line a...

Enabling global collaborations through policy engagement and CMS applications

Science.gov (United States)

Escobar, V. M.; Sepulveda Carlo, E.; Delgado Arias, S.

2015-12-01

Different spatial scales prompt different discussions among carbon data stakeholders. NASA's Carbon Monitoring System (CMS) initiative has enabled collaboration opportunities with stakeholders whose data needs and requirements are unique to the spatial scope of their work: from county to the international scale. At the very local level, the Sonoma County Agricultural Preservation and Open Space District leverages CMS high-resolution biomass estimates to develop a Monitoring, Reporting, and Verification (MRV) system in support of the District's 10-year land stewardship plan and the California's Global Warming Solutions Act (AB32). On the eastern coast, at the state level, the Maryland Department of Natural Resources utilizes the same high-resolution biomass estimates on a larger scale to better strategize in achieving the goal of 40% canopy cover statewide by 2020. At a regional scale that encompasses the three states of Maryland, Delaware, and Pennsylvania, LiDAR data collection of the Chesapeake Bay watershed dominate the stakeholder discussions. By collaborating with the U.S. Geological Survey's 3-D Elevation Program (3DEP), high-resolution LiDAR data will fill critical data gaps to help implement watershed protection strategies such as increasing riparian forest buffers to reduce runoff. Outside of the U.S., the World Resources Institute seeks to harness CMS reforestation products and technical expertise in addressing land restoration priorities specific to each Latin American country. CMS applications efforts expand beyond forest carbon examples discussed above to include carbon markets, ocean acidification, national greenhouse gas inventory, and wetlands. The broad array of case studies and lessons learned through CMS Applications in scaling carbon science for policy development at different spatial scales is providing unique opportunities that leverage science through policy needs.

Glimos Instructions for CMS Underground Guiding - in english

CERN Multimedia

CERN. Geneva; Dupont, Niels; Esposito, William

2016-01-01

In this presentation in english, the basic safety rules for CMS underground visits are explained. The trainees are taught how to plan/organize a CMS underground visit along important safety aspects of the CMS underground (Point 5). Content owners and presenters (CMS safety team) : Niels Dupont (in french), Michael Brodski (in german), William Esposito (in english) A pdf document on the subject is available as material from the indico event page. (TO BE DONE from https://twiki.cern.ch/Edutech/CMSGlimosInstructions!)   Tell us what you think via e-learning.support at cern.ch More tutorials in the e-learning collection of the CERN Document Server (CDS) http://cds.cern.ch/collection/E-learning%20modules?ln=en All info about the CERN rapid e-learning project is linked from http://twiki.cern.ch/ELearning  

Glimos Instructions for CMS Underground Guiding - in french

CERN Multimedia

CERN. Geneva; Dupont, Niels; Brodski, Michael

2016-01-01

In this presentation in french, the basic safety rules for CMS underground visits are explained. The trainees are taught how to plan/organize a CMS underground visit along important safety aspects of the CMS underground (Point 5). Content owners and presenters (CMS safety team) : Niels Dupont (in french), Michael Brodski (in german), William Esposito (in english) A pdf document on the subject is available as material from the indico event page. (TO BE DONE from https://twiki.cern.ch/Edutech/CMSGlimosInstructions!)   Tell us what you think via e-learning.support at cern.ch More tutorials in the e-learning collection of the CERN Document Server (CDS) http://cds.cern.ch/collection/E-learning%20modules?ln=en All info about the CERN rapid e-learning project is linked from http://twiki.cern.ch/ELearning  

Status of the CMS detector and upgrade plans

CERN Document Server

Guiducci, Luigi

2013-01-01

The CMS experiment at the LHC collected 5.55 /fb of proton proton collisions data at a center of mass energy of 7 TeV in 2011 and almost 20 /fb at 8 TeV energy in 2012, while the LHC run is still ongoing. The CMS detector has shown excellent performance and very good data taking efficiency. The operational experience will be discussed focusing on relevant technical aspects. The performance of CMS subdetectors will be illustrated. Emphasis will be put on the solutions adopted during 2012 run to adapt to the increase in luminosity of the LHC while mantaining the high quality of the physics objects delivered to offline analysis. New challenges, dictated by future LHC luminosity scenarios, are ahead of CMS an overview of the detector upgrade plans, both on medium and long term range, will be given.

DeepFlavour in CMS

CERN Multimedia

CERN. Geneva

2017-01-01

Flavour-tagging of jets is an important task in collider based high energy physics and a field where machine learning tools are applied by all major experiments. A new tagger (DeepFlavour) was developed and commissioned in CMS that is based on an advanced machine learning procedure. A deep neural network is used to do multi-classification of jets that origin from a b-quark, two b-quarks, a c-quark, two c-quarks or light colored particles (u, d, s-quark or gluon). The performance was measured in both, data and simulation. The talk will also include the measured performance of all taggers in CMS. The different taggers and results will be discussed and compared with some focus on details of the newest tagger.

Detector Upgrade R\\&D of the CMS Hadronic Endcap and Forward Calorimeters

CERN Document Server

Akgun, Ugur

2010-01-01

The CMS Hadronic Endcap (HE) and Hadronic Forward (HF) calorimeters cover the pseudorapidity range of from 1.4 to 5 on both sides of the CMS detector, contributing to superior jet and missing transverse energy resolutions. Here we discuss possible upgrade scenarios for both calorimeters. Recent studies revealed abnormally high amplitude signals due to punch through charged particles, mostly muons, producing Cherenkov photons at the HF calorimeter PMT window. Our studies show that these events can be eliminated either by using the timing properties, or replacing the HF PMTs with new generation four anode PMTs. As the integrated luminosity of the LHC increases, the scintillator tiles used in the CMS Hadronic Endcap calorimeter will lose their efficiency. This report outlines two possible radiation hard upgrade scenarios based on replacing the HE scintillators with quartz plates.

Jim Virdee, the new spokesperson of CMS

CERN Multimedia

2006-01-01

Jim Virdee and Michel Della Negra. On 21 June Tejinder 'Jim'Virdee was elected by the CMS collaboration as its new spokesperson, his 3-year term of office beginning in January 2007. He will take over from Michel Della Negra, who has been CMS spokesperson since its formalization in 1992. Three distinguished physicists stood as candidates for this election: Dan Green from Fermilab, programme manager of the US-CMS collaboration and coordinator of the CMS Hadron Calorimeter project; Jim Virdee from Imperial College London and CERN, deputy spokesperson of CMS since 1993; Gigi Rolandi from the University of Trieste and CERN, ex-Aleph spokesperson and currently involved in the preparations of the physics analyses to be done with CMS. On the early evening of 21 June, 141 of the 142 members of the CMS collaboration board, some represented by proxies, took part in a secret ballot. After two rounds of voting Jim Virdee was elected as spokesperson with a clear majority. Jim thanked the CMS collaboration 'for putting conf...

CMS Fast Facts

Data.gov (United States)

U.S. Department of Health & Human Services — CMS has developed a new quick reference statistical summary on annual CMS program and financial data. CMS Fast Facts includes summary information on total program...

Flux Loop Measurements of the Magnetic Flux Density in the CMS Magnet Yoke

CERN Document Server

Klyukhin, V I; Ball, A.; Curé, B.; Gaddi, A.; Gerwig, H.; Mulders, M.; Hervé, A.; Loveless, R.

2016-01-01

The Compact Muon Solenoid (CMS) is a general purpose detector, designed to run at the highest luminosity at the CERN Large Hadron Collider (LHC). Its distinctive features include a 4 T superconducting solenoid with 6-m-diameter by 12.5-m-length free bore, enclosed inside a 10,000-ton return yoke made of construction steel. The return yoke consists of five dodecagonal three-layered barrel wheels and four end-cap disks at each end comprised of steel blocks up to 620 mm thick, which serve as the absorber plates of the muon detection system. To measure the field in and around the steel, a system of 22 flux loops and 82 3-D Hall sensors is installed on the return yoke blocks. A TOSCA 3-D model of the CMS magnet is developed to describe the magnetic field everywhere outside the tracking volume measured with the field-mapping machine. The first attempt is made to measure the magnetic flux density in the steel blocks of the CMS magnet yoke using the standard magnet discharge with the current ramp down speed of 1.5 A/...

CMS Wallet Card

Data.gov (United States)

U.S. Department of Health & Human Services — The CMS Wallet Card is a quick reference statistical summary on annual CMS program and financial data. The CMS Wallet Card is available for each year from 2004...

B-Physics at CMS with LHC Run-II and Beyond

CERN Document Server

Chen, Kai-Feng

2015-01-01

The LHC is entering into operation with an increased centre-of-mass energy of 13~TeV, and within the next 3 years of operations (Run-II) the foreseen integrated luminosity delivered to CMS will be about 100 fb$^{-1}$. The B hadron production cross section is expected to nearly double at this energy, thus potentially increasing by almost one order of magnitude the collected statistics relative to the previous operation period. This will enable CMS to perform enhanced measurements in the B-physics sector. A further increase in integrated luminosity is expected to occur in two more steps after the second LHC long shutdown (LS) in 2018 and the third LS in 2021, thus enabling to significantly improve the precision of several B-physics measurements, including $B_s(B_d)\\to\\mu^+\\mu^-$, and search for rarer decays. This proceeding reports on the prospects for B-physics measurements with high statistics data at CMS.

42 CFR 426.517 - CMS' statement regarding new evidence.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false CMS' statement regarding new evidence. 426.517... DETERMINATIONS Review of an NCD § 426.517 CMS' statement regarding new evidence. (a) CMS may review any new... experts; and (5) Presented during any hearing. (b) CMS may submit a statement regarding whether the new...

CMS computing on grid

International Nuclear Information System (INIS)

Guan Wen; Sun Gongxing

2007-01-01

CMS has adopted a distributed system of services which implement CMS application view on top of Grid services. An overview of CMS services will be covered. Emphasis is on CMS data management and workload Management. (authors)

The Need for an R&D and Upgrade Program for CMS Software and Computing

CERN Document Server

Elmer, Peter; Stenson, Kevin; Wittich, Peter

2013-01-01

Over the next ten years, the physics reach of the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) will be greatly extended through increases in the instantaneous luminosity of the accelerator and large increases in the amount of collected data. Due to changes in the way Moore's Law computing performance gains have been realized in the past decade, an aggressive program of R&D is needed to ensure that the computing capability of CMS will be up to the task of collecting and analyzing this data.

42 CFR 423.2264 - Guidelines for CMS review.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Guidelines for CMS review. 423.2264 Section 423....2264 Guidelines for CMS review. In reviewing marketing material or enrollment forms under § 423.2262, CMS determines (unless otherwise specified in additional guidance) that the marketing materials— (a...

CMS Statistics

Data.gov (United States)

U.S. Department of Health & Human Services — The CMS Center for Strategic Planning produces an annual CMS Statistics reference booklet that provides a quick reference for summary information about health...

CMS Tracker Visualisation

CERN Document Server

Mennea, Maria Santa; Zito, Giuseppe

2004-01-01

To provide improvements in the performance of existing tracker data visualization tools in IGUANA, a 2D visualisation software has been developed, using the object oriented paradigm and software engineering techniques. We have designed 2D graphics objects and some of them have been implemented. The access to the new objects is made in ORCA plugin of IGUANA CMS. A new tracker object oriented model has been designed for developing these 2D graphics objects. The model consists of new classes which represent all its components (layers, modules, rings, petals, rods).The new classes are described here. The last part of this document contains a user manual of the software and will be updated with new releases.

42 CFR 422.2264 - Guidelines for CMS review.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Guidelines for CMS review. 422.2264 Section 422... Guidelines for CMS review. In reviewing marketing material or election forms under § 422.2262 of this part, CMS determines that the marketing materials— (a) Provide, in a format (and, where appropriate, print...

VIP visit to CERN P5 CMS of Pakistan Science Members

CERN Multimedia

Hoch, Michael

2012-01-01

VIP visit to CERN P5 CMS of PAEC & JCPC Science Members List of PAEC Visitors: Dr. Badar Suleman - Member Science PAEC & Member of JCPC Dr. Waqar M. Butt - Member Engineering (Head of HMC3) Dr. Maqsood Ahmad - Chief Scientist (Head of Accelerator Project) List of CMS participants: Prof. Joseph Incandela, CMS Spokesperson Dr. Austin Ball, CMS Technical Coordinator Mr Andrzej Charkiewicz, CMS Resources Manager Dr. Michael Hoch, CMS Outreach activities, CMS photographer and guide Dr. Achille Petrilli, CMS Team Leader

CMS offline web tools

International Nuclear Information System (INIS)

Metson, S; Newbold, D; Belforte, S; Kavka, C; Bockelman, B; Dziedziniewicz, K; Egeland, R; Elmer, P; Eulisse, G; Tuura, L; Evans, D; Fanfani, A; Feichtinger, D; Kuznetsov, V; Lingen, F van; Wakefield, S

2008-01-01

We describe a relatively new effort within CMS to converge on a set of web based tools, using state of the art industry techniques, to engage with the CMS offline computing system. CMS collaborators require tools to monitor various components of the computing system and interact with the system itself. The current state of the various CMS web tools is described along side current planned developments. The CMS collaboration comprises of nearly 3000 people from all over the world. As well as its collaborators, its computing resources are spread all over globe and are accessed via the LHC grid to run analysis, large scale production and data transfer tasks. Due to the distributed nature of collaborators effective provision of collaborative tools is essential to maximise physics exploitation of the CMS experiment, especially when the size of the CMS data set is considered. CMS has chosen to provide such tools over the world wide web as a top level service, enabling all members of the collaboration to interact with the various offline computing components. Traditionally web interfaces have been added in HEP experiments as an afterthought. In the CMS offline we have decided to put web interfaces, and the development of a common CMS web framework, on an equal footing with the rest of the offline development. Tools exist within CMS to transfer and catalogue data (PhEDEx and DBS/DLS), run Monte Carlo production (ProdAgent) and submit analysis (CRAB). Effective human interfaces to these systems are required for users with different agendas and practical knowledge of the systems to effectively use the CMS computing system. The CMS web tools project aims to provide a consistent interface to all these tools

CMS offline web tools

Energy Technology Data Exchange (ETDEWEB)

Metson, S; Newbold, D [H.H. Wills Physics Laboratory, University of Bristol, Tyndall Avenue, Bristol BS8 1TL (United Kingdom); Belforte, S; Kavka, C [INFN, Sezione di Trieste (Italy); Bockelman, B [University of Nebraska Lincoln, Lincoln, NE (United States); Dziedziniewicz, K [CERN, Geneva (Switzerland); Egeland, R [University of Minnesota Twin Cities, Minneapolis, MN (United States); Elmer, P [Princeton (United States); Eulisse, G; Tuura, L [Northeastern University, Boston, MA (United States); Evans, D [Fermilab MS234, Batavia, IL (United States); Fanfani, A [Universita degli Studi di Bologna (Italy); Feichtinger, D [PSI, Villigen (Switzerland); Kuznetsov, V [Cornell University, Ithaca, NY (United States); Lingen, F van [California Institute of Technology, Pasedena, CA (United States); Wakefield, S [Blackett Laboratory, Imperial College, London (United Kingdom)

2008-07-15

We describe a relatively new effort within CMS to converge on a set of web based tools, using state of the art industry techniques, to engage with the CMS offline computing system. CMS collaborators require tools to monitor various components of the computing system and interact with the system itself. The current state of the various CMS web tools is described along side current planned developments. The CMS collaboration comprises of nearly 3000 people from all over the world. As well as its collaborators, its computing resources are spread all over globe and are accessed via the LHC grid to run analysis, large scale production and data transfer tasks. Due to the distributed nature of collaborators effective provision of collaborative tools is essential to maximise physics exploitation of the CMS experiment, especially when the size of the CMS data set is considered. CMS has chosen to provide such tools over the world wide web as a top level service, enabling all members of the collaboration to interact with the various offline computing components. Traditionally web interfaces have been added in HEP experiments as an afterthought. In the CMS offline we have decided to put web interfaces, and the development of a common CMS web framework, on an equal footing with the rest of the offline development. Tools exist within CMS to transfer and catalogue data (PhEDEx and DBS/DLS), run Monte Carlo production (ProdAgent) and submit analysis (CRAB). Effective human interfaces to these systems are required for users with different agendas and practical knowledge of the systems to effectively use the CMS computing system. The CMS web tools project aims to provide a consistent interface to all these tools.

CMS MANANGEMENT MEETINGS

CERN Multimedia

Management Board Agendas and minutes of meetings of the Management Board are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=223 Collaboration Board Agendas and minutes of meetings of the Collaboration Board are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=174 LHCC: Feedback from the CMS Referees, LHCC 97 February 25, 2009. The CMS LHCC referees met with representatives of CMS on 17-2-09, to review progress since the last November minireview. The main topics included shutdown construction, maintenance and repairs; status of the preshower detector; commissioning and physics analysis results from cosmic ray running and CSA08; preparations for physics, off line analysis, computing, and data distribution. TOTEM management and the TOTEM referees then joined us for a joint session to examine the readiness of the TOTEM detector. Detector construction, maintenance, and repairs. The referees congratulate CMS Management and the Detector Groups for the...

SU-E-T-20: A Correlation Study of 2D and 3D Gamma Passing Rates for Prostate IMRT Plans

International Nuclear Information System (INIS)

Zhang, D; Wang, B; Ma, C; Deng, X

2015-01-01

Purpose: To investigate the correlation between the two-dimensional gamma passing rate (2D %GP) and three-dimensional gamma passing rate (3D %GP) in prostate IMRT quality assurance. Methods: Eleven prostate IMRT plans were randomly selected from the clinical database and were used to obtain dose distributions in the phantom and patient. Three types of delivery errors (MLC bank sag errors, central MLC errors and monitor unit errors) were intentionally introduced to modify the clinical plans through an in-house Matlab program. This resulted in 187 modified plans. The 2D %GP and 3D %GP were analyzed using different dose-difference and distance-toagreement (1%-1mm, 2%-2mm and 3%-3mm) and 20% dose threshold. The 2D %GP and 3D %GP were then compared not only for the whole region, but also for the PTVs and critical structures using the statistical Pearson’s correlation coefficient (γ). Results: For different delivery errors, the average comparison of 2D %GP and 3D %GP showed different conclusions. The statistical correlation coefficients between 2D %GP and 3D %GP for the whole dose distribution showed that except for 3%/3mm criterion, 2D %GP and 3D %GP of 1%/1mm criterion and 2%/2mm criterion had strong correlations (Pearson’s γ value >0.8). Compared with the whole region, the correlations of 2D %GP and 3D %GP for PTV were better (the γ value for 1%/1mm, 2%/2mm and 3%/3mm criterion was 0.959, 0.931 and 0.855, respectively). However for the rectum, there was no correlation between 2D %GP and 3D %GP. Conclusion: For prostate IMRT, the correlation between 2D %GP and 3D %GP for the PTV is better than that for normal structures. The lower dose-difference and DTA criterion shows less difference between 2D %GP and 3D %GP. Other factors such as the dosimeter characteristics and TPS algorithm bias may also influence the correlation between 2D %GP and 3D %GP

CMS Centre at CERN

CERN Multimedia

2007-01-01

A new "CMS Centre" is being established on the CERN Meyrin site by the CMS collaboration. It will be a focal point for communications, where physicists will work together on data quality monitoring, detector calibration, offline analysis of physics events, and CMS computing operations. Construction of the CMS Centre begins in the historic Proton Synchrotron (PS) control room. The historic Proton Synchrotron (PS) control room, Opened by Niels Bohr in 1960, will be reused by CMS to built its control centre. TThe LHC@FNAL Centre, in operation at Fermilab in the US, will work very closely with the CMS Centre, as well as the CERN Control Centre. (Photo Fermilab)The historic Proton Synchrotron (PS) control room is about to start a new life. Opened by Niels Bohr in 1960, the room will be reused by CMS to built its control centre. When finished, it will resemble the CERN Contro...

CMS (Compact Muon Solenoid)

International Nuclear Information System (INIS)

Anon.

1995-01-01

The milestone workshops on LHC experiments in Aachen in 1990 and at Evian in 1992 provided the first sketches of how LHC detectors might look. The concept of a compact general-purpose LHC experiment based on a solenoid to provide the magnetic field was first discussed at Aachen, and the formal Expression of Interest was aired at Evian. It was here that the Compact Muon Solenoid (CMS) name first became public. Optimizing first the muon detection system is a natural starting point for a high luminosity (interaction rate) proton-proton collider experiment. The compact CMS design called for a strong magnetic field, of some 4 Tesla, using a superconducting solenoid, originally about 14 metres long and 6 metres bore. (By LHC standards, this warrants the adjective 'compact'.) The main design goals of CMS are: 1 - a very good muon system providing many possibilities for momentum measurement (physicists call this a 'highly redundant' system); 2 - the best possible electromagnetic calorimeter consistent with the above; 3 - high quality central tracking to achieve both the above; and 4 - an affordable detector. Overall, CMS aims to detect cleanly the diverse signatures of new physics by identifying and precisely measuring muons, electrons and photons over a large energy range at very high collision rates, while also exploiting the lower luminosity initial running. As well as proton-proton collisions, CMS will also be able to look at the muons emerging from LHC heavy ion beam collisions. The Evian CMS conceptual design foresaw the full calorimetry inside the solenoid, with emphasis on precision electromagnetic calorimetry for picking up photons. (A light Higgs particle will probably be seen via its decay into photon pairs.) The muon system now foresaw four stations. Inner tracking would use silicon microstrips and microstrip gas chambers, with over 10 7 channels offering high track finding efficiency. In the central CMS barrel, the tracking elements are

42 CFR 426.415 - CMS' role in the LCD review.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false CMS' role in the LCD review. 426.415 Section 426... Review of an LCD § 426.415 CMS' role in the LCD review. CMS may provide to the ALJ, and all parties to the LCD review, information identifying the person who represents the contractor or CMS, if necessary...

Relative effectiveness of oral 25-hydroxyvitamin D3 and vitamin D3 in raising wintertime serum 25-hydroxyvitamin D in older adults.

Science.gov (United States)

Cashman, Kevin D; Seamans, Kelly M; Lucey, Alice J; Stöcklin, Elisabeth; Weber, Peter; Kiely, Mairead; Hill, Tom R

2012-06-01

The relative potency of 25-hydroxyvitamin D3 to vitamin D3 needs to be better defined so that food-composition tables can better reflect the true vitamin D nutritive value of certain foods. We performed a randomized, controlled intervention study in apparently healthy, free-living adults to investigate whether the intake of 25-hydroxyvitamin D3 is 5 times more potent in raising serum 25-hydroxyvitamin D [25(OH)D] during winter compared with an equivalent amount of vitamin D3. A randomized, placebo-controlled, double-blind intervention study was conducted in adults aged ≥50 y (n = 56) who consumed a placebo, 20 μg vitamin D3, or 7 or 20 μg 25-hydroxyvitamin D3 daily throughout 10 wk of winter. Serum 25(OH)D was measured by using an enzyme-linked immunoassay, and serum albumin-corrected calcium (S-Ca) was assessed colorimetrically at the baseline, midpoint, and endpoint of the study. The mean (±SD) increases (per microgram of vitamin D compound) in serum 25(OH)D concentrations over baseline after 10 wk of supplementation were 0.96 ± 0.62, 4.02 ± 1.27, and 4.77 ± 1.04 nmol · L(-1) · μg intake(-1) for the 20-μg vitamin D3/d and 7- and 20-μg 25-hydroxyvitamin D3/d groups, respectively. A comparison of the 7- and 20-μg 25-hydroxyvitamin D3/d groups with the 20-μg vitamin D3/d group yielded conversion factors of 4.2 and 5, respectively. There was no effect of treatment on S-Ca concentrations and no incidence of hypercalcemia (S-Ca >2.6 nmol/L). Each microgram of orally consumed 25-hydroxyvitamin D3 was about 5 times more effective in raising serum 25(OH)D in older adults in winter than an equivalent amount of vitamin D3. This conversion factor could be used in food-compositional tables for relevant foods. This study was registered at clinicaltrials.gov as NCT01398202.

Upgrades of the CMS Outer Tracker for HL-LHC

CERN Document Server

AUTHOR|(CDS)2067159

2016-01-01

The LHC machine is planning an upgrade program which will smoothly bring the luminosity to about 5×1034cm$^{−2}$s$^{−1}$ around 2028, to possibly reach an integrated luminosity of 3000 fb$^{−1}$ in the following decade. This High Luminosity LHC scenario, HL-LHC, will require a preparation program of the LHC detectors known as Phase-2 upgrade. The current CMS Outer Tracker, already running close to its design limits, will not be able to survive HL-LHC radiation conditions and CMS will need a completely new device, in order to fully exploit the highly demanding operating conditions and the delivered luminosity. The new Tracker should have also L1 trigger capabilities. To achieve such goals, R&D; activities are ongoing to explore options and develop solutions that would allow including tracking information at Level-1. The design choices for the CMS Outer Tracker upgrades are discussed along with some highlights of the R&D; activities.

CMS Hadronic Endcap Calorimeter Upgrade R&D Studies

OpenAIRE

Akgun, Ugur; Albayrak, Elif. A.; Onel, Yasar

2012-01-01

Due to an expected increase in radiation damage in LHC, we propose to replace the active material of the CMS Hadronic EndCap calorimeters with radiation hard quartz plate. Quartz is proven to be radiation hard with radiation damage tests using electron, proton, neutron and gamma beams. However, the light produced in quartz is from Cerenkov process, which yields drastically fewer photons than scintillators. To increase the light collection efficiency we pursue two separate methods: First metho...

Measurements of T20 in backward elastic d p scattering at deuteron momenta 3.5 - 6 GeV/c

International Nuclear Information System (INIS)

Azhgirej, L.S.; Borzunov, Yu.T.; Chernykh, E.V.

1994-01-01

We present results of measurements of the tensor analyzing power T 20 in d p backward elastic scattering at initial deuterons momenta 3.5-6.0 GeV/c, which corresponds to the range of internal momentum of the deuteron constituents k = 0.5 - 0.8 GeV/c. New structure was observed at k = 0.65 GeV/c. Difference between behavior of T 20 for d p backward elastic scattering and for breakup reaction, which have a smooth behavior of T 20 at high k, is discussed. 12 refs.; 3 figs. (author)

Experimental Approach for the Uncertainty Assessment of 3D Complex Geometry Dimensional Measurements Using Computed Tomography at the mm and Sub-mm Scales.

Science.gov (United States)

Jiménez, Roberto; Torralba, Marta; Yagüe-Fabra, José A; Ontiveros, Sinué; Tosello, Guido

2017-05-16

The dimensional verification of miniaturized components with 3D complex geometries is particularly challenging. Computed Tomography (CT) can represent a suitable alternative solution to micro metrology tools based on optical and tactile techniques. However, the establishment of CT systems' traceability when measuring 3D complex geometries is still an open issue. In this work, an alternative method for the measurement uncertainty assessment of 3D complex geometries by using CT is presented. The method is based on the micro-CT system Maximum Permissible Error (MPE) estimation, determined experimentally by using several calibrated reference artefacts. The main advantage of the presented method is that a previous calibration of the component by a more accurate Coordinate Measuring System (CMS) is not needed. In fact, such CMS would still hold all the typical limitations of optical and tactile techniques, particularly when measuring miniaturized components with complex 3D geometries and their inability to measure inner parts. To validate the presented method, the most accepted standard currently available for CT sensors, the Verein Deutscher Ingenieure/Verband Deutscher Elektrotechniker (VDI/VDE) guideline 2630-2.1 is applied. Considering the high number of influence factors in CT and their impact on the measuring result, two different techniques for surface extraction are also considered to obtain a realistic determination of the influence of data processing on uncertainty. The uncertainty assessment of a workpiece used for micro mechanical material testing is firstly used to confirm the method, due to its feasible calibration by an optical CMS. Secondly, the measurement of a miniaturized dental file with 3D complex geometry is carried out. The estimated uncertainties are eventually compared with the component's calibration and the micro manufacturing tolerances to demonstrate the suitability of the presented CT calibration procedure. The 2U/T ratios resulting from the

Local school children curious about CMS

CERN Multimedia

Joannah Caborn Wengler

2012-01-01

Imagine the scene: about 20-30 schoolchildren aged 8-11 and about 1.25 m tall; a couple of adults, let’s say on average 1.75 m tall, and then one high-energy physics experiment 15 m tall. This is what you could have seen on 2, 6 and 9 February in the CMS cavern, as two local schools participated in the “Be a scientist!” programme.   "I think they've got it..." Two classes from the primary school in the village of Cessy, where CMS is located, took part in the visits on 2 and 9 February, and all 36 pupils from CM2 (Year 6) at the Ecole des Bois in nearby Ornex took part in the visit on 6 February. “They asked so many questions,” says Sandrine Saison Marsollier, CERN’s educational officer for the local community, who accompanied some of the classes to CMS. “Most of them had practical questions about what they saw, for example how big and how heavy the experiment is, and which bit goes where. But some ...

CERN Open Days 2013, Point 5 - CMS: CMS Experiment

CERN Multimedia

CERN Photolab

2013-01-01

Stand description: Come to LHC's Point 5 and visit the Compact Muon Solenoid (CMS) experiment that discovered the Higgs boson ! Descend 100 metres underground and take a walk in the cathedral-sized cavern housing the 14,000-tonne CMS detector. Ask Higgs hunters and other scientists just about anything, be it questions about their work, particle physics or the engineering challenges of building CMS.  On surface no restricted access  Point 5 will be abuzz all day long with activities for all ages, including literally "cool" cryogenics shows featuring the world's fastest ice-cream maker, dance performances, and much more.

CMS MANAGEMENT MEETINGS

CERN Multimedia

Management Board Agendas and minutes of meetings of the Management Board are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=223 Collaboration Board Agendas and minutes of meetings of the Collaboration Board are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=174 LHCC: Feedback from the CMS Referees, LHCC 97 February 25, 2009. The CMS LHCC referees met with representatives of CMS on 17-2-09, to review progress since the last November minireview. The main topics included  shutdown construction, maintenance and repairs;  status of the preshower detector; commissioning and physics analysis results from cosmic ray running and CSA08;   preparations for physics, off line analysis, computing, and data distribution. TOTEM management and the TOTEM referees then joined us for a joint session to examine the readiness of the TOTEM detector. Detector construction, maintenance, and repairs. The referees congratulate C...

CMS MANAGEMENT MEETINGS

CERN Multimedia

Jim Virdee

Management Board Agendas and minutes of meetings of the Management Board are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=223 Collaboration Board Agendas and minutes of meetings of the Collaboration Board are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=174 LHCC: Feedback from the CMS Referees, LHCC 97 February 25, 2009. The CMS LHCC referees met with representatives of CMS on 17-2-09, to review progress since the last November minireview. The main topics included  shutdown construction, maintenance and repairs;  status of the preshower detector; commissioning and physics analysis results from cosmic ray running and CSA08;   preparations for physics, off line analysis, computing, and data distribution. TOTEM management and the TOTEM referees then joined us for a joint session to examine the readiness of the TOTEM detector. Detector construction, maintenance, and repairs. The referees congratula...

Dose-ranging pharmacokinetics of colistin methanesulphonate (CMS) and colistin in rats following single intravenous CMS doses.

Science.gov (United States)

Marchand, Sandrine; Lamarche, Isabelle; Gobin, Patrice; Couet, William

2010-08-01

The aim of this study was to evaluate the effect of colistin methanesulphonate (CMS) dose on CMS and colistin pharmacokinetics in rats. Three rats per group received an intravenous bolus of CMS at a dose of 5, 15, 30, 60 or 120 mg/kg. Arterial blood samples were drawn at 0, 5, 15, 30, 60, 90, 120, 150 and 180 min. CMS and colistin plasma concentrations were determined by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The pharmacokinetic parameters of CMS and colistin were calculated by non-compartmental analysis. Linear relationships were observed between CMS and colistin AUCs to infinity and CMS doses, as well as between CMS and colistin C(max) and CMS doses. CMS and colistin pharmacokinetics were linear for a range of colistin concentrations covering the range of values encountered and recommended in patients even during treatment with higher doses.

42 CFR 423.2063 - Applicability of laws, regulations and CMS Rulings.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Applicability of laws, regulations and CMS Rulings..., ALJ Hearings, MAC review, and Judicial Review § 423.2063 Applicability of laws, regulations and CMS... on ALJs and the MAC. (b) CMS Rulings are published under the authority of the CMS Administrator...

CBC3: a CMS microstrip readout ASIC with logic for track-trigger modules at HL-LHC

CERN Document Server

Prydderch, Mark Lyndon; Bell, Stephen Jean-marc; Key-Charriere, M; Jones, Lawrence; Auzinger, Georg; Borg, Johan; Hall, Geoffrey; Pesaresi, Mark Franco; Raymond, David Mark; Uchida, Kirika; Goldstein, Joel; Seif El Nasr, Sarah

2018-01-01

The CBC3 is the latest version of the CMS Binary Chip ASIC for readout of the outer radial region of the upgraded CMS Tracker at HL-LHC. This 254-channel, 130nm CMOS ASIC is designed to be bump-bonded to a substrate to which sensors will be wire-bonded. It will instrument double-layer 2S-modules, consisting of two overlaid silicon microstrip sensors with aligned microstrips. On-chip logic identifies first level trigger primitives from high transverse-momentum tracks by selecting correlated hits in the two sensors. Delivered in late 2016, the CBC3 has been under test for several months, including X-ray irradiations and SEU testing. Results and performance are reported.

Searches for supersymmetry at CMS

Energy Technology Data Exchange (ETDEWEB)

Collaboration: F. Giordano on behalf of the CMS Collaboration

2017-11-15

Among the most promising prospects for a theory of physics beyond the standard model is supersymmetry. In this talk, the latest results from the CMS experiment at the LHC on searches for supersymmetry produced through strong production and electroweak production channels are presented using 20/fb of data from the 8 TeV LHC run, with particular focus on gluino and stop searches.

The CMS Tracker Upgrade for HL-LHC\\\\ Sensor R$\\&$D

CERN Document Server

Naseri, Mohsen

2014-01-01

At an instantaneous luminosity of 5~$\\times10^{34}~cm^{-2}~s^{-1}$, the high-luminosity phase of the Large Hadron Collider (HL-LHC) is expected to deliver a total of 3000~fb$^{-1}$ of collisions, hereby increasing the discovery potential of the LHC experiments significantly. However, the radiation environment of the tracking system will be severe, requiring new radiation hard sensors for the CMS tracker. Focusing on the upgrade of the outer tracker region, the CMS tracker collaboration has almost completed a large material investigation and irradiation campaign to identify the silicon material and design that fulfils all requirements of a new tracking detector at HL-LHC. Focusing on the upgrade of the outer tracker region, pad diodes as well as fully functional strip sensors have been implemented on silicon wafers with different material properties and thicknesses. The samples were irradiated with a mixture of neutrons and protons corresponding to fluences as expected for various positions in the future track...

Multiple-view, Multiple-selection Visualization of Simulation Geometry in CMS

International Nuclear Information System (INIS)

Bauerdick, L A T; Eulisse, G; Jones, C; McCauley, T; Osborne, I; Kovalskyi, D; Mrak Tadel, A; Tadel, M; Yagil, A

2012-01-01

Fireworks, the event-display program of CMS, was extended with an advanced geometry visualization package. ROOT's TGeo geometry is used as internal representation, shared among several geometry views. Each view is represented by a GUI list-tree widget, implemented as a flat vector to allow for fast searching, selection, and filtering by material type, node name, and shape type. Display of logical and physical volumes is supported. Color, transparency, and visibility flags can be modified for each node or for a selection of nodes. Further operations, like opening of a new view or changing of the root node, can be performed via a context menu. Node selection and graphical properties determined by the list-tree view can be visualized in any 3D graphics view of Fireworks. As each 3D view can display any number of geometry views, a user is free to combine different geometry-view selections within the same 3D view. Node-selection by proximity to a given point is possible. A visual clipping box can be set for each geometry view to limit geometry drawing into a specified region. Visualization of geometric overlaps, as detected by TGeo, is also supported. The geometry visualization package is used for detailed inspection and display of simulation geometry with or without the event data. It also serves as a tool for geometry debugging and inspection, facilitating development of geometries for CMS detector upgrades and for SLHC.

R&D for the upgrade of the CMS muon system

CERN Document Server

Abbrescia, Marcello

2015-01-01

The CMS muon system is based on three types of gaseous detectors, RPC, CSC and DT. While operating very well in the present conditions, upgrades are foreseen for each of the subsystems, necessary to guarantee its delicate role of muon triggering and tracking also in the High Luminosity phase of LHC, foreseen to start after Long Shutdown 3 in 2024 and to last for about 10 years.Studies devoted to asses the system perfomance stability for the future will be presented, and the plans about the new DT and CSC electronics will be outlined. In addition, the stategy - which is being developed - to complement the existing system with new detectors, based on GEM or improved RPC technologies, will be shown.

CMS Central Hadron Calorimeter

OpenAIRE

Budd, Howard S.

2001-01-01

We present a description of the CMS central hadron calorimeter. We describe the production of the 1996 CMS hadron testbeam module. We show the results of the quality control tests of the testbeam module. We present some results of the 1995 CMS hadron testbeam.

CMS Records Schedule

Data.gov (United States)

U.S. Department of Health & Human Services — The CMS Records Schedule provides disposition authorizations approved by the National Archives and Records Administration (NARA) for CMS program-related records...

CMS analysis school model

International Nuclear Information System (INIS)

Malik, S; Bloom, K; Shipsey, I; Cavanaugh, R; Klima, B; Chan, Kai-Feng; D'Hondt, J; Narain, M; Palla, F; Rolandi, G; Schörner-Sadenius, T

2014-01-01

To impart hands-on training in physics analysis, CMS experiment initiated the concept of CMS Data Analysis School (CMSDAS). It was born over three years ago at the LPC (LHC Physics Centre), Fermilab and is based on earlier workshops held at the LPC and CLEO Experiment. As CMS transitioned from construction to the data taking mode, the nature of earlier training also evolved to include more of analysis tools, software tutorials and physics analysis. This effort epitomized as CMSDAS has proven to be a key for the new and young physicists to jump start and contribute to the physics goals of CMS by looking for new physics with the collision data. With over 400 physicists trained in six CMSDAS around the globe, CMS is trying to engage the collaboration in its discovery potential and maximize physics output. As a bigger goal, CMS is striving to nurture and increase engagement of the myriad talents, in the development of physics, service, upgrade, education of those new to CMS and the career development of younger members. An extension of the concept to the dedicated software and hardware schools is also planned, keeping in mind the ensuing upgrade phase.

CMS Analysis School Model

Energy Technology Data Exchange (ETDEWEB)

Malik, S. [Nebraska U.; Shipsey, I. [Purdue U.; Cavanaugh, R. [Illinois U., Chicago; Bloom, K. [Nebraska U.; Chan, Kai-Feng [Taiwan, Natl. Taiwan U.; D' Hondt, J. [Vrije U., Brussels; Klima, B. [Fermilab; Narain, M. [Brown U.; Palla, F. [INFN, Pisa; Rolandi, G. [CERN; Schörner-Sadenius, T. [DESY

2014-01-01

To impart hands-on training in physics analysis, CMS experiment initiated the concept of CMS Data Analysis School (CMSDAS). It was born over three years ago at the LPC (LHC Physics Centre), Fermilab and is based on earlier workshops held at the LPC and CLEO Experiment. As CMS transitioned from construction to the data taking mode, the nature of earlier training also evolved to include more of analysis tools, software tutorials and physics analysis. This effort epitomized as CMSDAS has proven to be a key for the new and young physicists to jump start and contribute to the physics goals of CMS by looking for new physics with the collision data. With over 400 physicists trained in six CMSDAS around the globe, CMS is trying to engage the collaboration in its discovery potential and maximize physics output. As a bigger goal, CMS is striving to nurture and increase engagement of the myriad talents, in the development of physics, service, upgrade, education of those new to CMS and the career development of younger members. An extension of the concept to the dedicated software and hardware schools is also planned, keeping in mind the ensuing upgrade phase.

Yield performance and stability of CMS-based triticale hybrids.

Science.gov (United States)

Mühleisen, Jonathan; Piepho, Hans-Peter; Maurer, Hans Peter; Reif, Jochen Christoph

2015-02-01

CMS-based triticale hybrids showed only marginal midparent heterosis for grain yield and lower dynamic yield stability compared to inbred lines. Hybrids of triticale (×Triticosecale Wittmack) are expected to possess outstanding yield performance and increased dynamic yield stability. The objectives of the present study were to (1) examine the optimum choice of the biometrical model to compare yield stability of hybrids versus lines, (2) investigate whether hybrids exhibit a more pronounced grain yield performance and yield stability, and (3) study optimal strategies to predict yield stability of hybrids. Thirteen female and seven male parental lines and their 91 factorial hybrids as well as 30 commercial lines were evaluated for grain yield in up to 20 environments. Hybrids were produced using a cytoplasmic male sterility (CMS)-inducing cytoplasm that originated from Triticumtimopheevii Zhuk. We found that the choice of the biometrical model can cause contrasting results and concluded that a group-by-environment interaction term should be added to the model when estimating stability variance of hybrids and lines. midparent heterosis for grain yield was on average 3 % with a range from -15.0 to 11.5 %. No hybrid outperformed the best inbred line. Hybrids had, on average, lower dynamic yield stability compared to the inbred lines. Grain yield performance of hybrids could be predicted based on midparent values and general combining ability (GCA)-predicted values. In contrast, stability variance of hybrids could be predicted only based on GCA-predicted values. We speculated that negative effects of the used CMS cytoplasm might be the reason for the low performance and yield stability of the hybrids. For this purpose a detailed study on the reasons for the drawback of the currently existing CMS system in triticale is urgently required comprising also the search of potentially alternative hybridization systems.

CMS geometry through 2020

International Nuclear Information System (INIS)

Osborne, I; Brownson, E; Eulisse, G; Jones, C D; Sexton-Kennedy, E; Lange, D J

2014-01-01

CMS faces real challenges with upgrade of the CMS detector through 2020 and beyond. One of the challenges, from the software point of view, is managing upgrade simulations with the same software release as the 2013 scenario. We present the CMS geometry description software model, its integration with the CMS event setup and core software. The CMS geometry configuration and selection is implemented in Python. The tools collect the Python configuration fragments into a script used in CMS workflow. This flexible and automated geometry configuration allows choosing either transient or persistent version of the same scenario and specific version of the same scenario. We describe how the geometries are integrated and validated, and how we define and handle different geometry scenarios in simulation and reconstruction. We discuss how to transparently manage multiple incompatible geometries in the same software release. Several examples are shown based on current implementation assuring consistent choice of scenario conditions. The consequences and implications for multiple/different code algorithms are discussed.

CMS Program Statistics

Data.gov (United States)

U.S. Department of Health & Human Services — The CMS Office of Enterprise Data and Analytics has developed CMS Program Statistics, which includes detailed summary statistics on national health care, Medicare...

CMS Drug Spending

Data.gov (United States)

U.S. Department of Health & Human Services — CMS has released several information products that provide spending information for prescription drugs in the Medicare and Medicaid programs. The CMS Drug Spending...

42 CFR 416.30 - Terms of agreement with CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Terms of agreement with CMS. 416.30 Section 416.30... of agreement with CMS. As part of the agreement under § 416.26 the ASC must agree to the following... in subpart C of this part and to report promptly to CMS any failure to do so. (b) Limitation on...

CMS Awards

CERN Multimedia

2004-01-01

Ali Mohammad Rafiee receives the CMS Gold Award from Michel Della Negra of CMS. As part of the fifth annual CMS Awards, Iranian contractor HEPCO, located in Arak, an industrial town 200 km west of Tehran, received their Gold Award in a ceremony held on 14 June 2004 (the other award winners were reported in bulletin 13/2004). The Awards are given each year to a small number of the approximately one thousand contractors working on the CMS project. Gold Awards are given for outstanding technical achievement in work carried out for the detector. HEPCO received the Award for the excellent quality of their work in constructing two 25 tonne support tables, two 75 tonne shields (FCS) and eight supporting brackets to lower the HF into the cavern. Welds and machining obtained tolerances that were very difficult in structures of that size. Mr. A. M. Rafiee, the General Manager of the company, acknowledged the benefits of this collaboration, and thanked the efforts and skills of the many staff involved.

Power distribution studies for CMS forward tracker

International Nuclear Information System (INIS)

Todri, A.; Turqueti, M.; Rivera, R.; Kwan, S.

2009-01-01

The Electronic Systems Engineering Department of the Computing Division at the Fermi National Accelerator Laboratory is carrying out R and D investigations for the upgrade of the power distribution system of the Compact Muon Solenoid (CMS) Pixel Tracker at the Large Hadron Collider (LHC). Among the goals of this effort is that of analyzing the feasibility of alternative powering schemes for the forward tracker, including DC to DC voltage conversion techniques using commercially available and custom switching regulator circuits. Tests of these approaches are performed using the PSI46 pixel readout chip currently in use at the CMS Tracker. Performance measures of the detector electronics will include pixel noise and threshold dispersion results. Issues related to susceptibility to switching noise will be studied and presented. In this paper, we describe the current power distribution network of the CMS Tracker, study the implications of the proposed upgrade with DC-DC converters powering scheme and perform noise susceptibility analysis.

The CMS Tracker upgrade for HL-LHC

CERN Document Server

Ahuja, Sudha

2017-01-01

The LHC machine is planning an upgrade program which will smoothly bring the luminosity to about 5 $\\times$ $10^{34} $cm$^{-2}$s$^{-1}$ in 2028, to possibly reach an integrated luminosity of 3000 fb$^{-1}$ by the end of 2037. This High Luminosity LHC scenario, HL-LHC, will require a preparation program of the LHC detectors known as Phase-2 upgrade. The current CMS Outer Tracker, already running beyond design specifications, and CMS Phase1 Pixel Detector will not be able to survive HL-LHC radiation conditions and CMS will need completely new devices, in order to fully exploit the high-demanding operating conditions and the delivered luminosity. The new Outer Tracker should have also trigger capabilities. To achieve such goals, R$\\&$D activities are ongoing to explore options both for the Outer Tracker, and for the pixel Inner Tracker. Solutions are being developed that would allow including tracking information at Level-1. The design choices for the Tracker upgrades are discussed along with some highlights...

CMS distributed computing workflow experience

Science.gov (United States)

Adelman-McCarthy, Jennifer; Gutsche, Oliver; Haas, Jeffrey D.; Prosper, Harrison B.; Dutta, Valentina; Gomez-Ceballos, Guillelmo; Hahn, Kristian; Klute, Markus; Mohapatra, Ajit; Spinoso, Vincenzo; Kcira, Dorian; Caudron, Julien; Liao, Junhui; Pin, Arnaud; Schul, Nicolas; De Lentdecker, Gilles; McCartin, Joseph; Vanelderen, Lukas; Janssen, Xavier; Tsyganov, Andrey; Barge, Derek; Lahiff, Andrew

2011-12-01

The vast majority of the CMS Computing capacity, which is organized in a tiered hierarchy, is located away from CERN. The 7 Tier-1 sites archive the LHC proton-proton collision data that is initially processed at CERN. These sites provide access to all recorded and simulated data for the Tier-2 sites, via wide-area network (WAN) transfers. All central data processing workflows are executed at the Tier-1 level, which contain re-reconstruction and skimming workflows of collision data as well as reprocessing of simulated data to adapt to changing detector conditions. This paper describes the operation of the CMS processing infrastructure at the Tier-1 level. The Tier-1 workflows are described in detail. The operational optimization of resource usage is described. In particular, the variation of different workflows during the data taking period of 2010, their efficiencies and latencies as well as their impact on the delivery of physics results is discussed and lessons are drawn from this experience. The simulation of proton-proton collisions for the CMS experiment is primarily carried out at the second tier of the CMS computing infrastructure. Half of the Tier-2 sites of CMS are reserved for central Monte Carlo (MC) production while the other half is available for user analysis. This paper summarizes the large throughput of the MC production operation during the data taking period of 2010 and discusses the latencies and efficiencies of the various types of MC production workflows. We present the operational procedures to optimize the usage of available resources and we the operational model of CMS for including opportunistic resources, such as the larger Tier-3 sites, into the central production operation.

CMS distributed computing workflow experience

International Nuclear Information System (INIS)

Adelman-McCarthy, Jennifer; Gutsche, Oliver; Haas, Jeffrey D; Prosper, Harrison B; Dutta, Valentina; Gomez-Ceballos, Guillelmo; Hahn, Kristian; Klute, Markus; Mohapatra, Ajit; Spinoso, Vincenzo; Kcira, Dorian; Caudron, Julien; Liao Junhui; Pin, Arnaud; Schul, Nicolas; Lentdecker, Gilles De; McCartin, Joseph; Vanelderen, Lukas; Janssen, Xavier; Tsyganov, Andrey

2011-01-01

The vast majority of the CMS Computing capacity, which is organized in a tiered hierarchy, is located away from CERN. The 7 Tier-1 sites archive the LHC proton-proton collision data that is initially processed at CERN. These sites provide access to all recorded and simulated data for the Tier-2 sites, via wide-area network (WAN) transfers. All central data processing workflows are executed at the Tier-1 level, which contain re-reconstruction and skimming workflows of collision data as well as reprocessing of simulated data to adapt to changing detector conditions. This paper describes the operation of the CMS processing infrastructure at the Tier-1 level. The Tier-1 workflows are described in detail. The operational optimization of resource usage is described. In particular, the variation of different workflows during the data taking period of 2010, their efficiencies and latencies as well as their impact on the delivery of physics results is discussed and lessons are drawn from this experience. The simulation of proton-proton collisions for the CMS experiment is primarily carried out at the second tier of the CMS computing infrastructure. Half of the Tier-2 sites of CMS are reserved for central Monte Carlo (MC) production while the other half is available for user analysis. This paper summarizes the large throughput of the MC production operation during the data taking period of 2010 and discusses the latencies and efficiencies of the various types of MC production workflows. We present the operational procedures to optimize the usage of available resources and we the operational model of CMS for including opportunistic resources, such as the larger Tier-3 sites, into the central production operation.

CMS computing support at JINR

International Nuclear Information System (INIS)

Golutvin, I.; Koren'kov, V.; Lavrent'ev, A.; Pose, R.; Tikhonenko, E.

1998-01-01

Participation of JINR specialists in the CMS experiment at LHC requires a wide use of computer resources. In the context of JINR activities in the CMS Project hardware and software resources have been provided for full participation of JINR specialists in the CMS experiment; the JINR computer infrastructure was made closer to the CERN one. JINR also provides the informational support for the CMS experiment (web-server http://sunct2.jinr.dubna.su). Plans for further CMS computing support at JINR are stated

The Impact of Hospital Size on CMS Hospital Profiling.

Science.gov (United States)

Sosunov, Eugene A; Egorova, Natalia N; Lin, Hung-Mo; McCardle, Ken; Sharma, Vansh; Gelijns, Annetine C; Moskowitz, Alan J

2016-04-01

The Centers for Medicare & Medicaid Services (CMS) profile hospitals using a set of 30-day risk-standardized mortality and readmission rates as a basis for public reporting. These measures are affected by hospital patient volume, raising concerns about uniformity of standards applied to providers with different volumes. To quantitatively determine whether CMS uniformly profile hospitals that have equal performance levels but different volumes. Retrospective analysis of patient-level and hospital-level data using hierarchical logistic regression models with hospital random effects. Simulation of samples including a subset of hospitals with different volumes but equal poor performance (hospital effects=+3 SD in random-effect logistic model). A total of 1,085,568 Medicare fee-for-service patients undergoing 1,494,993 heart failure admissions in 4930 hospitals between July 1, 2005 and June 30, 2008. CMS methodology was used to determine the rank and proportion (by volume) of hospitals reported to perform "Worse than US National Rate." Percent of hospitals performing "Worse than US National Rate" was ∼40 times higher in the largest (fifth quintile by volume) compared with the smallest hospitals (first quintile). A similar gradient was seen in a cohort of 100 hospitals with simulated equal poor performance (0%, 0%, 5%, 20%, and 85% in quintiles 1 to 5) effectively leaving 78% of poor performers undetected. Our results illustrate the disparity of impact that the current CMS method of hospital profiling has on hospitals with higher volumes, translating into lower thresholds for detection and reporting of poor performance.

3-D Vector Flow Estimation With Row–Column-Addressed Arrays

DEFF Research Database (Denmark)

Holbek, Simon; Christiansen, Thomas Lehrmann; Stuart, Matthias Bo

2016-01-01

Simulation and experimental results from 3-D vector flow estimations for a 62 + 62 2-D row–column (RC) array with integrated apodization are presented. A method for implementing a 3-D transverse oscillation (TO) velocity estimator on a 3-MHz RC array is developed and validated. First, a parametric...... mean bias B˜ and mean standard deviation σ˜ . Second, the optimal parameter configuration is implemented on the prototype RC probe connected to the experimental ultrasound scanner SARUS. Results from measurements conducted in a flow-rig system containing a constant laminar flow and a straight.......7, −0.9, 0.4)% with a relative standard deviation of (8.7, 5.1, 0.8)% for (vx , vy, vz). The estimated peak velocity is 48.5 ± 3 cm/s giving a −3% bias. The out-of-plane velocity component perpendicular to the cross section is used to estimate volumetric flow rates in the flow rig at a 90° beam...

Design of the Nb3Sn dipole D20

International Nuclear Information System (INIS)

Dell'Orco, D.; Scanlan, R.; Taylor, C.E.

1992-08-01

The design of a 50 mm bore superconducting Nb 3 Sn dipole with a short sample field of 13 T at 4.3 K and a current of 5500 A/turn is presented. The magnet is composed by two double pancake layers. The inner cable has 37 strands with a strand diameter of 0.75 mm and a Cu/Sc ratio of 0.4; the outer cable has 47 strands with a diameter of 0.48 mm and a Cu/Sc ratio of 1.15. In order to obtain a high transfer function and low saturation effects on the multipoles, the stainless steel collar is elliptical and the iron yoke is ''close-in.'' The thin collar itself provides only a minimum prestress and the full prestress of 100 MPa is given by a 25 mm welded stainless steel shell or by winding a wire around the yoke. Aluminum spacers are used as assembly tools and as a means to control the gap size in the vertically split iron yoke. This paper presents the magnetic design and the calculated stress and strain distribution in structure and coils. A 1 m model called D20 is to be built and tested at LBL

Experience on 3D silicon sensors for ATLAS IBL

International Nuclear Information System (INIS)

Darbo, G.

2015-01-01

3D silicon sensors, where plasma micro-machining is used to etch deep narrow apertures in the silicon substrate to form electrodes of PIN junctions, represent possible solutions for inner pixel layers of the tracking detectors in high energy physics experiments. This type of sensors has been developed for the Insertable B-Layer (IBL), an additional pixel layer that has been installed in ATLAS during the present shutdown of the LHC collider at CERN. It is presented here the experience in designing, testing and qualifying sensors and detector modules that have been used to equip part of the IBL. Based on the gained experience with 3D silicon sensors for the ATLAS IBL, we discuss possible new developments for the upgrade of ATLAS and CMS at the high-luminosity LHC (HL-LHC)

Model unspecific search in CMS. Results at 8 TeV

Energy Technology Data Exchange (ETDEWEB)

Albert, Andreas; Duchardt, Deborah; Hebbeker, Thomas; Knutzen, Simon; Lieb, Jonas; Meyer, Arnd; Pook, Tobias; Roemer, Jonas [III. Physikalisches Institut A, RWTH Aachen University (Germany)

2016-07-01

In the year 2012, CMS collected a total data set of approximately 20 fb{sup -1} in proton-proton collisions at √(s)=8 TeV. Dedicated searches for physics beyond the standard model are commonly designed with the signatures of a given theoretical model in mind. While this approach allows for an optimised sensitivity to the sought-after signal, it may cause unexpected phenomena to be overlooked. In a complementary approach, the Model Unspecific Search in CMS (MUSiC) analyses CMS data in a general way. Depending on the reconstructed final state objects (e.g. electrons), collision events are sorted into classes. In each of the classes, the distributions of selected kinematic variables are compared to standard model simulation. An automated statistical analysis is performed to quantify the agreement between data and prediction. In this talk, the analysis concept is introduced and selected results of the analysis of the 2012 CMS data set are presented.

Opportunistic resource usage in CMS

International Nuclear Information System (INIS)

Kreuzer, Peter; Hufnagel, Dirk; Dykstra, D; Gutsche, O; Tadel, M; Sfiligoi, I; Letts, J; Wuerthwein, F; McCrea, A; Bockelman, B; Fajardo, E; Linares, L; Wagner, R; Konstantinov, P; Blumenfeld, B; Bradley, D

2014-01-01

CMS is using a tiered setup of dedicated computing resources provided by sites distributed over the world and organized in WLCG. These sites pledge resources to CMS and are preparing them especially for CMS to run the experiment's applications. But there are more resources available opportunistically both on the GRID and in local university and research clusters which can be used for CMS applications. We will present CMS' strategy to use opportunistic resources and prepare them dynamically to run CMS applications. CMS is able to run its applications on resources that can be reached through the GRID, through EC2 compliant cloud interfaces. Even resources that can be used through ssh login nodes can be harnessed. All of these usage modes are integrated transparently into the GlideIn WMS submission infrastructure, which is the basis of CMS' opportunistic resource usage strategy. Technologies like Parrot to mount the software distribution via CVMFS and xrootd for access to data and simulation samples via the WAN are used and will be described. We will summarize the experience with opportunistic resource usage and give an outlook for the restart of LHC data taking in 2015.

CMS Data Analysis School Model

CERN Document Server

Malik, Sudhir; Cavanaugh, R; Bloom, K; Chan, Kai-Feng; D'Hondt, J; Klima, B; Narain, M; Palla, F; Rolandi, G; Schörner-Sadenius, T

2014-01-01

To impart hands-on training in physics analysis, CMS experiment initiated the  concept of CMS Data Analysis School (CMSDAS). It was born three years ago at the LPC (LHC Physics Center), Fermilab and is based on earlier workshops held at the LPC and CLEO Experiment. As CMS transitioned from construction to the data taking mode, the nature of earlier training also evolved to include more of analysis tools, software tutorials and physics analysis. This effort epitomized as CMSDAS has proven to be a key for the new and young physicists to jump start and contribute to the physics goals of CMS by looking for new physics with the collision data. With over 400 physicists trained in six CMSDAS around the globe , CMS is trying to  engage the collaboration discovery potential and maximize the physics output. As a bigger goal, CMS is striving to nurture and increase engagement of the myriad talents of CMS, in the development of physics, service, upgrade, education of those new to CMS and the caree...

CMS Comic Book Brochure

CERN Document Server

2006-01-01

To raise students' awareness of what the CMS detector is, how it was constructed and what it hopes to find. Titled "CMS Particle Hunter," this colorful comic book style brochure explains to young budding scientists and science enthusiasts in colorful animation how the CMS detector was made, its main parts, and what scientists hope to find using this complex tool.

CRAB3: Establishing a new generation of services for distributed analysis at CMS

International Nuclear Information System (INIS)

Cinquilli, M; Spiga, D; Konstantinov, P; Mascheroni, M; Grandi, C; Hernàndez, J M; Riahi, H; Vaandering, E

2012-01-01

In CMS Computing the highest priorities for analysis tools are the improvement of the end users’ ability to produce and publish reliable samples and analysis results as well as a transition to a sustainable development and operations model. To achieve these goals CMS decided to incorporate analysis processing into the same framework as data and simulation processing. This strategy foresees that all workload tools (TierO, Tier1, production, analysis) share a common core with long term maintainability as well as the standardization of the operator interfaces. The re-engineered analysis workload manager, called CRAB3, makes use of newer technologies, such as RESTFul based web services and NoSQL Databases, aiming to increase the scalability and reliability of the system. As opposed to CRAB2, in CRAB3 all work is centrally injected and managed in a global queue. A pool of agents, which can be geographically distributed, consumes work from the central services serving the user tasks. The new architecture of CRAB substantially changes the deployment model and operations activities. In this paper we present the implementation of CRAB3, emphasizing how the new architecture improves the workflow automation and simplifies maintainability. In particular, we will highlight the impact of the new design on daily operations.

CRAB3: Establishing a new generation of services for distributed analysis at CMS

Science.gov (United States)

Cinquilli, M.; Spiga, D.; Grandi, C.; Hernàndez, J. M.; Konstantinov, P.; Mascheroni, M.; Riahi, H.; Vaandering, E.

2012-12-01

In CMS Computing the highest priorities for analysis tools are the improvement of the end users’ ability to produce and publish reliable samples and analysis results as well as a transition to a sustainable development and operations model. To achieve these goals CMS decided to incorporate analysis processing into the same framework as data and simulation processing. This strategy foresees that all workload tools (TierO, Tier1, production, analysis) share a common core with long term maintainability as well as the standardization of the operator interfaces. The re-engineered analysis workload manager, called CRAB3, makes use of newer technologies, such as RESTFul based web services and NoSQL Databases, aiming to increase the scalability and reliability of the system. As opposed to CRAB2, in CRAB3 all work is centrally injected and managed in a global queue. A pool of agents, which can be geographically distributed, consumes work from the central services serving the user tasks. The new architecture of CRAB substantially changes the deployment model and operations activities. In this paper we present the implementation of CRAB3, emphasizing how the new architecture improves the workflow automation and simplifies maintainability. In particular, we will highlight the impact of the new design on daily operations.

CRAB3: Establishing a new generation of services for distributed analysis at CMS

Energy Technology Data Exchange (ETDEWEB)

Cinquilli, M. [CERN; Spiga, D. [CERN; Grandi, C. [INFN, Bologna; Hernandez, J. M. [Madrid, CIEMAT; Konstantinov, P. [CERN; Mascheroni, M. [CERN; Riahi, H. [INFN, Perugia; Vaandering, E. [Fermilab

2012-01-01

In CMS Computing the highest priorities for analysis tools are the improvement of the end users ability to produce and publish reliable samples and analysis results as well as a transition to a sustainable development and operations model. To achieve these goals CMS decided to incorporate analysis processing into the same framework as data and simulation processing. This strategy foresees that all workload tools (TierO, Tier1, production, analysis) share a common core with long term maintainability as well as the standardization of the operator interfaces. The re-engineered analysis workload manager, called CRAB3, makes use of newer technologies, such as RESTFul based web services and NoSQL Databases, aiming to increase the scalability and reliability of the system. As opposed to CRAB2, in CRAB3 all work is centrally injected and managed in a global queue. A pool of agents, which can be geographically distributed, consumes work from the central services serving the user tasks. The new architecture of CRAB substantially changes the deployment model and operations activities. In this paper we present the implementation of CRAB3, emphasizing how the new architecture improves the workflow automation and simplifies maintainability. In particular, we will highlight the impact of the new design on daily operations.

Search for the Standard Model Higgs boson decaying to $b$ quarks with the CMS experiment

CERN Document Server

Donato, Silvio; Rizzi, Andrea

2017-01-01

Chapter 1 describes the theory of the Higgs boson in the framework of the SM and gives an overview of the physics of the Higgs boson and of its search performed by the CMS and ATLAS collaborations during the LHC Run 1. Chapter 2 introduces the CMS experiment at the LHC and the event reconstruction used by CMS. My contribution to the event reconstruction is an improvement of the tracking in the core of energetic jets, described in Appendix A. The last section of this Chapter will present the trigger system of CMS, with special attention to the High Level Trigger (HLT). The whole Chapter 3 is devoted to the description of the trigger improvements that I developed during my Ph.D. One of the most important achievements is a fast track- ing that allows to identify pile-up jets for any event accepted by the hardware trigger (∼ 100 kHz). This fast tracking exploits a novel algorithm, the Fast Primary Vertex, that localizes the primary vertex without using tracks, but just hits recorded by the pixel detector and je...

CMS analysis operations

International Nuclear Information System (INIS)

Andreeva, J; Maier, G; Spiga, D; Calloni, M; Colling, D; Fanzago, F; D'Hondt, J; Maes, J; Van Mulders, P; Villella, I; Klem, J; Letts, J; Padhi, S; Sarkar, S

2010-01-01

During normal data taking CMS expects to support potentially as many as 2000 analysis users. Since the beginning of 2008 there have been more than 800 individuals who submitted a remote analysis job to the CMS computing infrastructure. The bulk of these users will be supported at the over 40 CMS Tier-2 centres. Supporting a globally distributed community of users on a globally distributed set of computing clusters is a task that requires reconsidering the normal methods of user support for Analysis Operations. In 2008 CMS formed an Analysis Support Task Force in preparation for large-scale physics analysis activities. The charge of the task force was to evaluate the available support tools, the user support techniques, and the direct feedback of users with the goal of improving the success rate and user experience when utilizing the distributed computing environment. The task force determined the tools needed to assess and reduce the number of non-zero exit code applications submitted through the grid interfaces and worked with the CMS experiment dashboard developers to obtain the necessary information to quickly and proactively identify issues with user jobs and data sets hosted at various sites. Results of the analysis group surveys were compiled. Reference platforms for testing and debugging problems were established in various geographic regions. The task force also assessed the resources needed to make the transition to a permanent Analysis Operations task. In this presentation the results of the task force will be discussed as well as the CMS Analysis Operations plans for the start of data taking.

CMS has a heart of pixels

CERN Multimedia

2003-01-01

In the immediate vicinity of the collision point, CMS will be equipped with pixel detectors consisting of no fewer than 50 million pixels measuring 150 microns along each side. Each of the pixels, which receive the signal, is connected to its own electronic circuit by a tiny sphere (seen here in the electron microscope image) measuring 15 to 20 microns in diameter.

76 FR 14669 - Privacy Act of 1974; CMS Computer Match No. 2011-02; HHS Computer Match No. 1007

Science.gov (United States)

2011-03-17

... 1974; CMS Computer Match No. 2011-02; HHS Computer Match No. 1007 AGENCY: Department of Health and Human Services (HHS), Centers for Medicare & Medicaid Services (CMS). ACTION: Notice of computer... notice establishes a computer matching agreement between CMS and the Department of Defense (DoD). We have...

T20 measurements for 1H(d searrow,γ)3He and the P-wave component of the nucleon-nucleon force

International Nuclear Information System (INIS)

Schmid, G.J.; Chasteler, R.M.; Weller, H.R.; Tilley, D.R.; Fonseca, A.C.; Lehman, D.R.

1996-01-01

Measurements of T 20 (θ lab =90 degree) for 1 H(d searrow,γ) 3 He, in the energy range E d (lab)=12.7 endash 19.8 MeV, have been compared with the results of new exact three-body Faddeev calculations using the Paris and Bonn-A nucleon-nucleon (NN) potentials. This comparison indicates a strong sensitivity of the T 20 observable to the p-wave part of the NN force. In particular, we find that the 3 P 1 component of the P-wave interaction is the dominant P-wave term affecting the value of T 20 (θ lab =90 degree) at these energies. This contrasts with the results of polarized N-D scattering studies where the 3 P 0 component has been found to dominate. cents 1996 The American Physical Society

CMS Space Monitoring

Science.gov (United States)

Ratnikova, N.; Huang, C.-H.; Sanchez-Hernandez, A.; Wildish, T.; Zhang, X.

2014-06-01

During the first LHC run, CMS stored about one hundred petabytes of data. Storage accounting and monitoring help to meet the challenges of storage management, such as efficient space utilization, fair share between users and groups and resource planning. We present a newly developed CMS space monitoring system based on the storage metadata dumps produced at the sites. The information extracted from the storage dumps is aggregated and uploaded to a central database. A web based data service is provided to retrieve the information for a given time interval and a range of sites, so it can be further aggregated and presented in the desired format. The system has been designed based on the analysis of CMS monitoring requirements and experiences of the other LHC experiments. In this paper, we demonstrate how the existing software components of the CMS data placement system, PhEDEx, have been re-used, dramatically reducing the development effort.

CMS Space Monitoring

Energy Technology Data Exchange (ETDEWEB)

Ratnikova, N. [Fermilab; Huang, C.-H. [Fermilab; Sanchez-Hernandez, A. [CINVESTAV, IPN; Wildish, T. [Princeton U.; Zhang, X. [Beijing, Inst. High Energy Phys.

2014-01-01

During the first LHC run, CMS stored about one hundred petabytes of data. Storage accounting and monitoring help to meet the challenges of storage management, such as efficient space utilization, fair share between users and groups and resource planning. We present a newly developed CMS space monitoring system based on the storage metadata dumps produced at the sites. The information extracted from the storage dumps is aggregated and uploaded to a central database. A web based data service is provided to retrieve the information for a given time interval and a range of sites, so it can be further aggregated and presented in the desired format. The system has been designed based on the analysis of CMS monitoring requirements and experiences of the other LHC experiments. In this paper, we demonstrate how the existing software components of the CMS data placement system, PhEDEx, have been re-used, dramatically reducing the development effort.

Experimental approach for the uncertainty assessment of 3D complex geometry dimensional measurements using computed tomography at the mm and sub-mm scales

DEFF Research Database (Denmark)

Jiménez, Roberto; Torralba, Marta; Yagüe-Fabra, José A.

2017-01-01

The dimensional verification of miniaturized components with 3D complex geometries is particularly challenging. Computed Tomography (CT) can represent a suitable alternative solution to micro metrology tools based on optical and tactile techniques. However, the establishment of CT systems......’ traceability when measuring 3D complex geometries is still an open issue. In this work, an alternative method for the measurement uncertainty assessment of 3D complex geometries by using CT is presented. The method is based on the micro-CT system Maximum Permissible Error (MPE) estimation, determined...... experimentally by using several calibrated reference artefacts. The main advantage of the presented method is that a previous calibration of the component by a more accurate Coordinate Measuring System (CMS) is not needed. In fact, such CMS would still hold all the typical limitations of optical and tactile...

42 CFR 421.114 - Assignment and reassignment of providers by CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Assignment and reassignment of providers by CMS. 421.114 Section 421.114 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH... Assignment and reassignment of providers by CMS. CMS may assign or reassign any provider to any intermediary...

International Masterclass at CMS

CERN Multimedia

Lapka, M

2012-01-01

The CMS collaboration welcomed a class of French high school students to the CERN facility in Meyrin, Switzerland on the 12 of March, 2012. Students spent the day meeting with physicists, hearing talks, asking questions, and participating in a hands-on exercise using real data collected by the CMS experiment on the Large Hadron Colider. Talks and other resources are available here: http://ippog-dev.web.cern.ch/resources/2012/ippog-international-masterclass-2012-cms

Storage element performance optimization for CMS analysis jobs

International Nuclear Information System (INIS)

Behrmann, G; Dahlblom, J; Guldmyr, J; Happonen, K; Lindén, T

2012-01-01

Tier-2 computing sites in the Worldwide Large Hadron Collider Computing Grid (WLCG) host CPU-resources (Compute Element, CE) and storage resources (Storage Element, SE). The vast amount of data that needs to processed from the Large Hadron Collider (LHC) experiments requires good and efficient use of the available resources. Having a good CPU efficiency for the end users analysis jobs requires that the performance of the storage system is able to scale with I/O requests from hundreds or even thousands of simultaneous jobs. In this presentation we report on the work on improving the SE performance at the Helsinki Institute of Physics (HIP) Tier-2 used for the Compact Muon Experiment (CMS) at the LHC. Statistics from CMS grid jobs are collected and stored in the CMS Dashboard for further analysis, which allows for easy performance monitoring by the sites and by the CMS collaboration. As part of the monitoring framework CMS uses the JobRobot which sends every four hours 100 analysis jobs to each site. CMS also uses the HammerCloud tool for site monitoring and stress testing and it has replaced the JobRobot. The performance of the analysis workflow submitted with JobRobot or HammerCloud can be used to track the performance due to site configuration changes, since the analysis workflow is kept the same for all sites and for months in time. The CPU efficiency of the JobRobot jobs at HIP was increased approximately by 50 % to more than 90 %, by tuning the SE and by improvements in the CMSSW and dCache software. The performance of the CMS analysis jobs improved significantly too. Similar work has been done on other CMS Tier-sites, since on average the CPU efficiency for CMSSW jobs has increased during 2011. Better monitoring of the SE allows faster detection of problems, so that the performance level can be kept high. The next storage upgrade at HIP consists of SAS disk enclosures which can be stress tested on demand with HammerCloud workflows, to make sure that the I

Recent results on SUSY searches from CMS

CERN Multimedia

CERN. Geneva

2013-01-01

The latest results on searches for Supersymmetry from CMS are reviewed. We present searches for direct stop production, searches in final states with four W bosons and multiple b-quarks, and searches for R-Parity violating SUSY. The results use up to 20/fb of data from the 8 TeV LHC run of 2012.

CMS Industries awarded gold, crystal

CERN Multimedia

2006-01-01

The CMS collaboration honoured 10 of its top suppliers in the seventh annual awards ceremony The representatives of the firms that recieved the CMS Gold and Crystal Awards stand with their awards after the ceremony. The seventh annual CMS Awards ceremony was held on Monday 13 March to recognize the industries that have made substantial contributions to the construction of the collaboration's detector. Nine international firms received Gold Awards, and General Tecnica of Italy received the prestigious Crystal Award. Representatives from the companies attended the ceremony during the plenary session of CMS week. 'The role of CERN, its machines and experiments, beyond particle physics is to push the development of equipment technologies related to high-energy physics,'said CMS Awards Coordinator Domenico Campi. 'All of these industries must go beyond the technologies that are currently available.' Without the involvement of good companies over the years, the construction of the CMS detector wouldn't be possible...

CMS MANAGEMENT MEETINGS

CERN Multimedia

2010-01-01

The Agendas and Minutes of the Management Board meetings are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=223 The Agendas and Minutes of the Collaboration Board meetings are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=174

Mechanical characterization and assessment of the CMS conductor

CERN Document Server

Sequeira-Lopes-Tavares, S; Desirelli, Alberto; Sgobba, Stefano; Horváth, I L

2000-01-01

The Compact Muon Solenoid (CMS) is one of the experiments which are being designed in the framework of the Large Hadron Collider (LHC) project at CERN. The design field of the CMS magnet is 4 T, the magnetic length is 12.5m and the free aperture is 6 m in diameter. This is achieved with a 4 layer and 5 module superconducting Al stabilized coil, resulting into 20 lengths of conductor of 2.5 km each, energized at a nominal current of 20 kA at 4.5 K. One of the unique features of this thin solenoid is an Al-stabilized conductor reinforced by an Al-alloy. An extensive characterization of mechanical properties at room temperature and 4.2 K has been carried out in order to define the most appropriate alloy and temper for the reinforcement. The effect of the coil curing cycle on the alloy properties has been taken into account. This paper summarizes the main results of these tests. (7 refs).

CERN Researchers' Night @ CMS + TOTEM

CERN Multimedia

Hoch, Michael

2011-01-01

Young researchers' shifter training at CMS; • Introduction talk with discussion, • CMS control room shadowing the shifters • TOTEM control room introduction and discusson • Scientific poster work shop and presentation • Science Art installations ‘Faces of CMS’ & ‘Science Cloud’ • CMS Shift diploma presentation

A browser-based event display for the CMS Experiment at the LHC using WebGL

Science.gov (United States)

McCauley, T.

2017-10-01

Modern web browsers are powerful and sophisticated applications that support an ever-wider range of uses. One such use is rendering high-quality, GPU-accelerated, interactive 2D and 3D graphics in an HTML canvas. This can be done via WebGL, a JavaScript API based on OpenGL ES. Applications delivered via the browser have several distinct benefits for the developer and user. For example, they can be implemented using well-known and well-developed technologies, while distribution and use via a browser allows for rapid prototyping and deployment and ease of installation. In addition, delivery of applications via the browser allows for easy use on mobile, touch-enabled devices such as phones and tablets. iSpy WebGL is an application for visualization of events detected and reconstructed by the CMS Experiment at the Large Hadron Collider at CERN. The first event display developed for an LHC experiment to use WebGL, iSpy WebGL is a client-side application written in JavaScript, HTML, and CSS and uses the WebGL API three.js. iSpy WebGL is used for monitoring of CMS detector performance, for production of images and animations of CMS collisions events for the public, as a virtual reality application using Google Cardboard, and asa tool available for public education and outreach such as in the CERN Open Data Portal and the CMS masterclasses. We describe here its design, development, and usage as well as future plans.

Performance of new radiation tolerant thin n-in-p Silicon pixel sensors for the CMS experiment at High Luminosity LHC

CERN Document Server

Dalla Betta, G.F; Darbo, G; Dinardo, Mauro; Giacomini, G; Menasce, Dario; Meschini, Marco; Messineo, Alberto; Moroni, Luigi; Rivera, Ryan Allen; Ronchin, S; Uplegger, Lorenzo; Viliani, Lorenzo; Zoi, Irene; Zuolo, Davide

2017-01-01

The High Luminosity upgrade of the CERN-LHC (HL-LHC) demands for a new high-radiation tolerant solid-state pixel sensor capable of surviving fluencies up to a few 10$^{16}$ particles/cm$^2$ at $\\sim$3 cm from the interaction point. To this extent the INFN ATLAS-CMS joint research activity in collaboration with Fondazione Bruno Kessler-FBK, is aiming at the development of thin n-in-p type pixel sensors for the HL-LHC. The R and D covers both planar and single-sided 3D columnar pixel devices made with the Si-Si Direct Wafer Bonding technique, which allows for the production of sensors with 100~$\\mu {\\rm m}$ and 130~$\\mu {\\rm m}$ active thickness for planars, and 130~$\\mu {\\rm m}$ for 3D sensors, the thinnest ones ever produced so far. First prototypes of hybrid modules bump-bonded to the present CMS readout chip have been tested in beam tests. Preliminary results on their performance before and after irradiation are presented.

CMS MANAGEMENT MEETINGS

CERN Multimedia

The Agendas and Minutes of the Management Board meetings are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=223  The Agendas and Minutes of the Collaboration Board meetings are accessible to CMS members at: http://indico.cern.ch/categoryDisplay.py?categId=174 

Debugging data transfers in CMS

International Nuclear Information System (INIS)

Bagliesi, G; Belforte, S; Bloom, K; Bockelman, B; Bonacorsi, D; Fisk, I; Flix, J; Hernandez, J; D'Hondt, J; Maes, J; Kadastik, M; Klem, J; Kodolova, O; Kuo, C-M; Letts, J; Magini, N; Metson, S; Piedra, J; Pukhaeva, N; Tuura, L

2010-01-01

The CMS experiment at CERN is preparing for LHC data taking in several computing preparation activities. In early 2007 a traffic load generator infrastructure for distributed data transfer tests was designed and deployed to equip the WLCG tiers which support the CMS virtual organization with a means for debugging, load-testing and commissioning data transfer routes among CMS computing centres. The LoadTest is based upon PhEDEx as a reliable, scalable data set replication system. The Debugging Data Transfers (DDT) task force was created to coordinate the debugging of the data transfer links. The task force aimed to commission most crucial transfer routes among CMS tiers by designing and enforcing a clear procedure to debug problematic links. Such procedure aimed to move a link from a debugging phase in a separate and independent environment to a production environment when a set of agreed conditions are achieved for that link. The goal was to deliver one by one working transfer routes to the CMS data operations team. The preparation, activities and experience of the DDT task force within the CMS experiment are discussed. Common technical problems and challenges encountered during the lifetime of the taskforce in debugging data transfer links in CMS are explained and summarized.

The CMS dataset bookkeeping service

Science.gov (United States)

Afaq, A.; Dolgert, A.; Guo, Y.; Jones, C.; Kosyakov, S.; Kuznetsov, V.; Lueking, L.; Riley, D.; Sekhri, V.

2008-07-01

The CMS Dataset Bookkeeping Service (DBS) has been developed to catalog all CMS event data from Monte Carlo and Detector sources. It provides the ability to identify MC or trigger source, track data provenance, construct datasets for analysis, and discover interesting data. CMS requires processing and analysis activities at various service levels and the DBS system provides support for localized processing or private analysis, as well as global access for CMS users at large. Catalog entries can be moved among the various service levels with a simple set of migration tools, thus forming a loose federation of databases. DBS is available to CMS users via a Python API, Command Line, and a Discovery web page interfaces. The system is built as a multi-tier web application with Java servlets running under Tomcat, with connections via JDBC to Oracle or MySQL database backends. Clients connect to the service through HTTP or HTTPS with authentication provided by GRID certificates and authorization through VOMS. DBS is an integral part of the overall CMS Data Management and Workflow Management systems.

The CMS dataset bookkeeping service

Energy Technology Data Exchange (ETDEWEB)

Afaq, A; Guo, Y; Kosyakov, S; Lueking, L; Sekhri, V [Fermilab, Batavia, Illinois 60510 (United States); Dolgert, A; Jones, C; Kuznetsov, V; Riley, D [Cornell University, Ithaca, New York 14850 (United States)

2008-07-15

The CMS Dataset Bookkeeping Service (DBS) has been developed to catalog all CMS event data from Monte Carlo and Detector sources. It provides the ability to identify MC or trigger source, track data provenance, construct datasets for analysis, and discover interesting data. CMS requires processing and analysis activities at various service levels and the DBS system provides support for localized processing or private analysis, as well as global access for CMS users at large. Catalog entries can be moved among the various service levels with a simple set of migration tools, thus forming a loose federation of databases. DBS is available to CMS users via a Python API, Command Line, and a Discovery web page interfaces. The system is built as a multi-tier web application with Java servlets running under Tomcat, with connections via JDBC to Oracle or MySQL database backends. Clients connect to the service through HTTP or HTTPS with authentication provided by GRID certificates and authorization through VOMS. DBS is an integral part of the overall CMS Data Management and Workflow Management systems.

The CMS dataset bookkeeping service

International Nuclear Information System (INIS)

Afaq, A; Guo, Y; Kosyakov, S; Lueking, L; Sekhri, V; Dolgert, A; Jones, C; Kuznetsov, V; Riley, D

2008-01-01

The CMS Dataset Bookkeeping Service (DBS) has been developed to catalog all CMS event data from Monte Carlo and Detector sources. It provides the ability to identify MC or trigger source, track data provenance, construct datasets for analysis, and discover interesting data. CMS requires processing and analysis activities at various service levels and the DBS system provides support for localized processing or private analysis, as well as global access for CMS users at large. Catalog entries can be moved among the various service levels with a simple set of migration tools, thus forming a loose federation of databases. DBS is available to CMS users via a Python API, Command Line, and a Discovery web page interfaces. The system is built as a multi-tier web application with Java servlets running under Tomcat, with connections via JDBC to Oracle or MySQL database backends. Clients connect to the service through HTTP or HTTPS with authentication provided by GRID certificates and authorization through VOMS. DBS is an integral part of the overall CMS Data Management and Workflow Management systems

The CMS dataset bookkeeping service

International Nuclear Information System (INIS)

Afaq, Anzar; Dolgert, Andrew; Guo, Yuyi; Jones, Chris; Kosyakov, Sergey; Kuznetsov, Valentin; Lueking, Lee; Riley, Dan; Sekhri, Vijay

2007-01-01

The CMS Dataset Bookkeeping Service (DBS) has been developed to catalog all CMS event data from Monte Carlo and Detector sources. It provides the ability to identify MC or trigger source, track data provenance, construct datasets for analysis, and discover interesting data. CMS requires processing and analysis activities at various service levels and the DBS system provides support for localized processing or private analysis, as well as global access for CMS users at large. Catalog entries can be moved among the various service levels with a simple set of migration tools, thus forming a loose federation of databases. DBS is available to CMS users via a Python API, Command Line, and a Discovery web page interfaces. The system is built as a multi-tier web application with Java servlets running under Tomcat, with connections via JDBC to Oracle or MySQL database backends. Clients connect to the service through HTTP or HTTPS with authentication provided by GRID certificates and authorization through VOMS. DBS is an integral part of the overall CMS Data Management and Workflow Management systems

45 CFR 150.203 - Circumstances requiring CMS enforcement.

Science.gov (United States)

2010-10-01

... 45 Public Welfare 1 2010-10-01 2010-10-01 false Circumstances requiring CMS enforcement. 150.203... CARE ACCESS CMS ENFORCEMENT IN GROUP AND INDIVIDUAL INSURANCE MARKETS CMS Enforcement Processes for... requiring CMS enforcement. CMS enforces HIPAA requirements to the extent warranted (as determined by CMS) in...

The CMS ECAL Upgrade for Precision Crystal Calorimetry at the HL-LHC

CERN Document Server

Petyt, David Anthony

2018-01-01

The electromagnetic calorimeter (ECAL) of the Compact Muon Solenoid Experiment (CMS) is operating at the Large Hadron Collider (LHC) in 2016 with proton-proton collisions at 13 TeV center-of-mass energy and at a bunch spacing of 25 ns. Challenging running conditions for CMS are expected after the High-Luminosity upgrade of the LHC (HL-LHC). We review the design and R and D studies for the CMS ECAL crystal calorimeter upgrade and present first test beam studies. Particular challenges at HL-LHC are the harsh radiation environment, the increasing data rates and the extreme level of pile-up events, with up to 200 simultaneous proton-proton collisions. We present test beam results of hadron irradiated PbWO$_{4}$ crystals up to fluences expected at the HL-LHC. We also report on the R and D for the new readout and trigger electronics, which must be upgraded due to the increased trigger and latency requirements at the HL-LHC.

Custom 3D printer and resin for 18 μm × 20 μm microfluidic flow channels.

Science.gov (United States)

Gong, Hua; Bickham, Bryce P; Woolley, Adam T; Nordin, Gregory P

2017-08-22

While there is great interest in 3D printing for microfluidic device fabrication, to-date the achieved feature sizes have not been in the truly microfluidic regime (uses a 385 nm LED, which dramatically increases the available selection of UV absorbers for resin formulation compared to 3D printers with 405 nm LEDs. Beginning with 20 candidate absorbers, we demonstrate the evaluation criteria and process flow required to develop a high-resolution resin. In doing so, we introduce a new mathematical model for characterizing the resin optical penetration depth based only on measurement of the absorber's molar absorptivity. Our final resin formulation uses 2-nitrophenyl phenyl sulfide (NPS) as the UV absorber. We also develop a novel channel narrowing technique that, together with the new resin and 3D printer resolution, enables small flow channel fabrication. We demonstrate the efficacy of our approach by fabricating 3D serpentine flow channels 41 mm long in a volume of only 0.12 mm 3 , and by printing high aspect ratio flow channels prototyping and fabrication.

Intravoxel incoherent motion (IVIM) DWI of the liver. Pre-and postprandial comparison

International Nuclear Information System (INIS)

Hirose, Junji; Satou, Yuuichi; Amemiya, Ryoji; Yoda, Yoshioki; Motosugi, Utaroh

2013-01-01

We evaluated if meal intake changes the diffusivity result calculated using the intravoxel incoherent motion (IVIM) model and the portal flow velocity measured by phase contrast magnetic resonance (MR) imaging. We asked 3 healthy volunteers to eat 794-kcal meals and acquired MR images before and 20 minutes after the meal using a 1.5-tesla clinical MR scanner. We acquired 2-dimensional (2D) phase contrast (PC) gradient echo MR images to measure portal flow and diffusion-weighted images to calculate diffusivity results using the IVIM model and b-values of 0, 10, 20, 30, 40, 50, 70, 100, 200, 400, and 800 s/mm 2 . Portal flow was greater after the meal than (before): Volunteer A, 16.1 cm/s (9.7 cm/s); B, 18.0 cm/s (12.8 cm/s); and C, 18.3 cm/s (11.7 cm/s). The diffusivity results of D * and f were also increased after the meal in all 3 volunteers. D * and f values before and (after) the meal were: Volunteer A, 97.1 and 0.14 (149.6 and 0.20); Volunteer B, 79.4 and 0.20 (183.4 and 0.21); and Volunteer C, 29.4 and 0.19 (132.7 and 0.20). The trend in apparent diffusion coefficient (ADC) and D values were inconsistent among the 3 volunteers. The higher D * and f values in the liver after eating calculated using the IVIM model indicated increased portal flow due to the meal. (author)

42 CFR 417.801 - Agreements between CMS and health care prepayment plans.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Agreements between CMS and health care prepayment... CMS and health care prepayment plans. (a) General requirement. (1) In order to participate and receive... written agreement with CMS. (2) An existing group practice prepayment plan (GPPP) that continues as an...

17 CFR 240.15d-20 - Plain English presentation of specified information.

Science.gov (United States)

2010-04-01

... 17 Commodity and Securities Exchanges 3 2010-04-01 2010-04-01 false Plain English presentation of specified information. 240.15d-20 Section 240.15d-20 Commodity and Securities Exchanges SECURITIES AND... Regulations Under the Securities Exchange Act of 1934 Other Reports § 240.15d-20 Plain English presentation of...

CMS Brochure (german version)

CERN Multimedia

Marcastel, F

2007-01-01

CMS is the heaviest detector at the LHC, the most powerful particle accelerator in the world, which will start up in 2008. A multi-purpose detector, CMS is composed of several systems built around a powerful superconducting magnet.

CMS brochure (English version)

CERN Document Server

Marcastel, Fabienne

2014-01-01

CMS is the heaviest detector at the LHC, the most powerful particle accelerator in the world, which has started up in 2008. A multi-purpose detector, CMS is composed of several systems built around a powerful superconducting magnet.

CMS brochure (Spanish version)

CERN Multimedia

Lefevre, C

2008-01-01

CMS is the heaviest detector at the LHC, the most powerful particle accelerator in the world, which will start up in 2008. A multi-purpose detector, CMS is composed of several systems built around a powerful superconducting magnet.

Protein 3D Structure and Electron Microscopy Map Retrieval Using 3D-SURFER2.0 and EM-SURFER.

Science.gov (United States)

Han, Xusi; Wei, Qing; Kihara, Daisuke

2017-12-08

With the rapid growth in the number of solved protein structures stored in the Protein Data Bank (PDB) and the Electron Microscopy Data Bank (EMDB), it is essential to develop tools to perform real-time structure similarity searches against the entire structure database. Since conventional structure alignment methods need to sample different orientations of proteins in the three-dimensional space, they are time consuming and unsuitable for rapid, real-time database searches. To this end, we have developed 3D-SURFER and EM-SURFER, which utilize 3D Zernike descriptors (3DZD) to conduct high-throughput protein structure comparison, visualization, and analysis. Taking an atomic structure or an electron microscopy map of a protein or a protein complex as input, the 3DZD of a query protein is computed and compared with the 3DZD of all other proteins in PDB or EMDB. In addition, local geometrical characteristics of a query protein can be analyzed using VisGrid and LIGSITE CSC in 3D-SURFER. This article describes how to use 3D-SURFER and EM-SURFER to carry out protein surface shape similarity searches, local geometric feature analysis, and interpretation of the search results. © 2017 by John Wiley & Sons, Inc. Copyright © 2017 John Wiley & Sons, Inc.

Scaling up a CMS tier-3 site with campus resources and a 100 Gb/s network connection: what could go wrong?

Science.gov (United States)

Wolf, Matthias; Woodard, Anna; Li, Wenzhao; Hurtado Anampa, Kenyi; Tovar, Benjamin; Brenner, Paul; Lannon, Kevin; Hildreth, Mike; Thain, Douglas

2017-10-01

The University of Notre Dame (ND) CMS group operates a modest-sized Tier-3 site suitable for local, final-stage analysis of CMS data. However, through the ND Center for Research Computing (CRC), Notre Dame researchers have opportunistic access to roughly 25k CPU cores of computing and a 100 Gb/s WAN network link. To understand the limits of what might be possible in this scenario, we undertook to use these resources for a wide range of CMS computing tasks from user analysis through large-scale Monte Carlo production (including both detector simulation and data reconstruction.) We will discuss the challenges inherent in effectively utilizing CRC resources for these tasks and the solutions deployed to overcome them.

42 CFR 422.758 - Collection of civil money penalties imposed by CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false Collection of civil money penalties imposed by CMS... § 422.758 Collection of civil money penalties imposed by CMS. (a) When an MA organization does not request a hearing, CMS initiates collection of the civil money penalty following the expiration of the...

CMS overview

CERN Document Server

AUTHOR|(CDS)2071615

2016-01-01

Most recent CMS data related to the high-density QCD are presented for pp and PbPb collisions at 2.76 TeV and pPb collisions at 5.02 TeV. The PbPb collision is essential to understand collective behavior and the final-state effects for the detailed characteristics of hot, dense partonic matter, whereas the pPb collision provides the critical information on the initial-state effects including the modification of the parton distribution function in cold nuclei. This paper highlights some of recent heavy-ion related results from CMS.

42 CFR 426.515 - CMS' role in making the NCD record available.

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false CMS' role in making the NCD record available. 426.515 Section 426.515 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND... COVERAGE DETERMINATIONS Review of an NCD § 426.515 CMS' role in making the NCD record available. CMS will...

Particle-flow reconstruction and global event description with the CMS detector

Energy Technology Data Exchange (ETDEWEB)

Sirunyan, Albert M; et al.

2017-06-15

The CMS apparatus was identified, a few years before the start of the LHC operation at CERN, to feature properties well suited to particle-flow (PF) reconstruction: a highly-segmented tracker, a fine-grained electromagnetic calorimeter, a hermetic hadron calorimeter, a strong magnetic field, and an excellent muon spectrometer. A fully-fledged PF reconstruction algorithm tuned to the CMS detector was therefore developed and has been consistently used in physics analyses for the first time at a hadron collider. For each collision, the comprehensive list of final-state particles identified and reconstructed by the algorithm provides a global event description that leads to unprecedented CMS performance for jet and hadronic tau decay reconstruction, missing transverse momentum determination, and electron and muon identification. This approach also allows particles from pileup interactions to be identified and enables efficient pileup mitigation methods. The data collected by CMS at a centre-of-mass energy of 8 TeV show excellent agreement with the simulation and confirm the superior PF performance at least up to an average of 20 pileup interactions.

Auger Physicists visit CMS

CERN Multimedia

Hoch, Michael

2012-01-01

Visit at CERN P5 CMS in the experimental cavern Alan Watson, Auger Spokesperson Emeritus, University of Leeds; Jim Cronin, Nobel Laureate, Auger Spokesperson Emeritus, University of Chicago; Jim Virdee, CMS Former Spokesperson, Imperial College; Jim Matthews, Auger Co-Spokesperson, Louisiana State University

Aspects of defects in 3d-3d correspondence

International Nuclear Information System (INIS)

Gang, Dongmin; Kim, Nakwoo; Romo, Mauricio; Yamazaki, Masahito

2016-01-01

In this paper we study supersymmetric co-dimension 2 and 4 defects in the compactification of the 6d (2,0) theory of type A_N_−_1 on a 3-manifold M. The so-called 3d-3d correspondence is a relation between complexified Chern-Simons theory (with gauge group SL(N,ℂ)) on M and a 3d N=2 theory T_N[M]. We study this correspondence in the presence of supersymmetric defects, which are knots/links inside the 3-manifold. Our study employs a number of different methods: state-integral models for complex Chern-Simons theory, cluster algebra techniques, domain wall theory T[SU(N)], 5d N=2 SYM, and also supergravity analysis through holography. These methods are complementary and we find agreement between them. In some cases the results lead to highly non-trivial predictions on the partition function. Our discussion includes a general expression for the cluster partition function, which can be used to compute in the presence of maximal and certain class of non-maximal punctures when N>2. We also highlight the non-Abelian description of the 3d N=2T_N[M] theory with defect included, when such a description is available. This paper is a companion to our shorter paper http://dx.doi.org/10.1088/1751-8113/49/30/30LT02, which summarizes our main results.

Vitamin D3 and 25-hydroxyvitamin D3 in pork and their relationship to vitamin D status in pigs

DEFF Research Database (Denmark)

Burild, Anders; Lauridsen, Charlotte; Faqir, Nasrin

2016-01-01

The content of vitamin D in pork produced in conventional systems depends on the vitamin D concentration in the pig feed. Both vitamin D3 and 25-hydroxyvitamin D3 (25(OH)D3) are essential sources of dietary vitamin D; however, bioavailability assessed by serum 25(OH)D3 concentration is reported...... of vitamin D3 and 25(OH)D3 in the pig feed for 49 d before slaughter. Concurrently, the 25(OH)D3 level in serum was investigated as a biomarker to assess the content of vitamin D3 and 25(OH)D3 in pig tissues. Adipose tissue, white and red muscle, the liver and serum were sampled from pigs fed feed containing...... either vitamin D3 or 25(OH)D3 at 5, 20, 35 or 50 µg/kg feed for 7 weeks before slaughter. The tissue 25(OH)D3 level was significantly higher in the pigs fed 25(OH)D3 compared with those fed vitamin D3, while the tissue vitamin D3 level was higher in the pigs fed vitamin D3 compared with those fed 25(OH...

CMS Higgs boson results

CERN Document Server

Bluj, Michal Jacek

2018-01-01

In this report we review recent Higgs boson results obtained with pp collisions at $\\sqrt{s}=\\,$13 TeV recorded by the CMS detector in 2016 for an integrated luminosity of 35.9fb$^{\\text{-1}}$. The 2016 data allowed the observation of the $H \\to \\tau\\tau$ and $H \\to WW$ decays with high significance. We also present a combined measurement based on a full set of CMS analyses performed with 2016 data. These results are compatible with the standard model predictions with precision of several measurements exceeding results from combination of ATLAS and CMS data collected in 2011 and 2012.

Sensor R&D for the CMS Tracker Upgrade for the HL-LHC

CERN Document Server

Behnamian, Hadi

2014-01-01

At an instantaneous luminosity of $5\\times 10^{34} cm^{-2} s^{-1}$, the high-luminosity phase of the Large Hadron Collider (HL-LHC) is expected to deliver a total of 3000 $fb^{-1}$ of collisions, hereby increasing the discovery potential of the LHC experiments significantly. However, the radiation environment of the tracking system will be severe, requiring new radiation hard sensors for the CMS tracker. The CMS tracker collaboration has almost completed a large material investigation and irradiation campaign to identify the silicon material and design that fulfills all requirements of a new tracking detector at HL-LHC. Focusing on the upgrade of the outer tracker region, pad diodes as well as fully functional strip sensors have been implemented on silicon wafers with different material properties and thicknesses. The samples were irradiated with a mixture of neutrons and protons corresponding to fluences as expected for various positions in the future tracker. The measurements performed on the structures inc...

File list: NoD.Adl.20.AllAg.Octopaminergic_neurons [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available NoD.Adl.20.AllAg.Octopaminergic_neurons dm3 No description Adult Octopaminergic neurons... http://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/NoD.Adl.20.AllAg.Octopaminergic_neurons.bed ...

Jagiellonian University Ultra-peripheral $J/\\psi $ Production in PbPb Collisions in CMS

CERN Document Server

Walczak, Marek

2017-01-01

I briefly introduce the Ultra-Peripheral Collisions (UPCs) and explain what is the benefit of studying these events. I also show the current status of an ongoing analysis, which concerns the UPC J∕ψ production in PbPb 2015 data from the CMS experiment at CERN. This analysis forms the basis of my Ph.D. Thesis and its results have not been yet approved by the CMS Collaboration.

The central part of CMS is lowered

CERN Multimedia

Maximilien Brice

2007-01-01

On 28 February 2007, the CMS central piece containing the magnet and weighing as much as five Jumbo jets (1920 tonnes) was gently lowered into place. Only 20 cm separated the detector, which was suspended by four huge cables, each with 55 strands and sophisticated monitoring to minimize sway and tilt, from the walls of the shaft. The entire process took about 10 hours to complete.

CERN Open Days CMS Posters

CERN Multimedia

Davis, Siona Ruth

2016-01-01

Themes: 1) You are here (location P5, Cessy) 2) CERN 3) LHC 4) CMS Detector 5) Magnet 6) Subdetectors (Tracker, ECAL, HCAL, Muons) 7) Trigger and Data Acquisition 8) Collaboration 9) Site Geography 10) Construction 11) Lowering and Installation 12) Physics

Russian institute receives CMS Gold Award

CERN Multimedia

Patrice Loïez

2003-01-01

The Snezhinsk All-Russian Institute of Scientific Research for Technical Physics (VNIITF) of the Russian Federal Nuclear Centre (RFNC) is one of twelve CMS suppliers to receive awards for outstanding performance this year. The CMS Collaboration took the opportunity of the visit to CERN of the Director of VNIITF and his deputy to present the CMS Gold Award, which the institute has received for its exceptional performance in the assembly of steel plates for the CMS forward hadronic calorimeter. This calorimeter consists of two sets of 18 wedge-shaped modules arranged concentrically around the beam-pipe at each end of the CMS detector. Each module consists of steel absorber plates with quartz fibres inserted into them. The institute developed a special welding technique to assemble the absorber plates, enabling a high-quality detector to be produced at relatively low cost.RFNC-VNIITF Director Professor Georgy Rykovanov (right), is seen here receiving the Gold Award from Felicitas Pauss, Vice-Chairman of the CMS ...

42 CFR 489.53 - Termination by CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 5 2010-10-01 2010-10-01 false Termination by CMS. 489.53 Section 489.53 Public... Reinstatement After Termination § 489.53 Termination by CMS. (a) Basis for termination of agreement with any provider. CMS may terminate the agreement with any provider if CMS finds that any of the following failings...

CMS results in the Combined Computing Readiness Challenge CCRC'08

International Nuclear Information System (INIS)

Bonacorsi, D.; Bauerdick, L.

2009-01-01

During February and May 2008, CMS participated to the Combined Computing Readiness Challenge (CCRC'08) together with all other LHC experiments. The purpose of this worldwide exercise was to check the readiness of the Computing infrastructure for LHC data taking. Another set of major CMS tests called Computing, Software and Analysis challenge (CSA'08) - as well as CMS cosmic runs - were also running at the same time: CCRC augmented the load on computing with additional tests to validate and stress-test all CMS computing workflows at full data taking scale, also extending this to the global WLCG community. CMS exercised most aspects of the CMS computing model, with very comprehensive tests. During May 2008, CMS moved more than 3.6 Petabytes among more than 300 links in the complex Grid topology. CMS demonstrated that is able to safely move data out of CERN to the Tier-1 sites, sustaining more than 600 MB/s as a daily average for more than seven days in a row, with enough headroom and with hourly peaks of up to 1.7 GB/s. CMS ran hundreds of simultaneous jobs at each Tier-1 site, re-reconstructing and skimming hundreds of millions of events. After re-reconstruction the fresh AOD (Analysis Object Data) has to be synchronized between Tier-1 centers: CMS demonstrated that the required inter-Tier-1 transfers are achievable within a few days. CMS also showed that skimmed analysis data sets can be transferred to Tier-2 sites for analysis at sufficient rate, regionally as well as inter-regionally, achieving all goals in about 90% of >200 links. Simultaneously, CMS also ran a large Tier-2 analysis exercise, where realistic analysis jobs were submitted to a large set of Tier-2 sites by a large number of people to produce a chaotic workload across the systems, and with more than 400 analysis users in May. Taken all together, CMS routinely achieved submissions of 100k jobs/day, with peaks up to 200k jobs/day. The achieved results in CCRC'08 - focussing on the distributed

3D-SURFER 2.0: web platform for real-time search and characterization of protein surfaces.

Science.gov (United States)

Xiong, Yi; Esquivel-Rodriguez, Juan; Sael, Lee; Kihara, Daisuke

2014-01-01

The increasing number of uncharacterized protein structures necessitates the development of computational approaches for function annotation using the protein tertiary structures. Protein structure database search is the basis of any structure-based functional elucidation of proteins. 3D-SURFER is a web platform for real-time protein surface comparison of a given protein structure against the entire PDB using 3D Zernike descriptors. It can smoothly navigate the protein structure space in real-time from one query structure to another. A major new feature of Release 2.0 is the ability to compare the protein surface of a single chain, a single domain, or a single complex against databases of protein chains, domains, complexes, or a combination of all three in the latest PDB. Additionally, two types of protein structures can now be compared: all-atom-surface and backbone-atom-surface. The server can also accept a batch job for a large number of database searches. Pockets in protein surfaces can be identified by VisGrid and LIGSITE (csc) . The server is available at http://kiharalab.org/3d-surfer/.

The CMS ECAL Upgrade for Precision Crystal Calorimetry at the HL-LHC

CERN Document Server

Marinelli, Nancy

2017-01-01

The Compact Muon Solenoid Experiment (CMS) is operating at the Large Hadron Collider (LHC) with proton-proton collisions at 13 TeV center-of-mass energy and at a bunch spacing of 25 ns. New further challenging running conditions for CMS are expected after the High-Luminosity upgrade of the LHC (HL--LHC). The CMS electromagnetic calorimeter (ECAL) will need to be upgraded to substain the hardned environment.The design and R\\ and D studies for the ECAL upgrade are presented together with first test beam studies. Particular challenges at HL--LHC are the harsh radiation environment, the increasing data rates and the extreme level of pile-up events, with up to 200 simultaneous proton-proton collisions. Precision timing can be exploited to reduce the effect of the pile-up. Time resolution measurementscarried out during test-beams are shown. Plans are also shown for R\\ and D for the new readout and trigger electronics, which must be upgraded due to the increased trigger and latency requirements at the HL--LHC

Vitamin D3 increases in abdominal subcutaneous fat tissue after supplementation with vitamin D3

DEFF Research Database (Denmark)

Didriksen, Allan; Burild, Anders; Jakobsen, Jette

2015-01-01

stored in all adipose tissue in the body, the median body store was 6.6 mg vitamin D-3 and 0.12 mg 25(OH)D-3 in those given vitamin D-3. Conclusions: Subcutaneous adipose tissue may store large amounts of vitamin D-3. The clinical importance of this storage needs to be determined.......Objective: The objective was to assess the amount of vitamin D-3 stored in adipose tissue after long-term supplementation with high dose vitamin D-3. Design: A cross-sectional study on 29 subjects with impaired glucose tolerance who had participated in a randomized controlled trial with vitamin D-3...... 20 000 IU (500 mu g) per week vs placebo for 3-5 years. Methods: Abdominal subcutaneous fat tissue was obtained by needle biopsy for the measurements of vitamin D-3 and 25-hydroxyvitamin D-3 (25(OH)D-3). Body fat was measured with dual-energy X-ray absorptiometry, and serum 25(OH)D-3 level...

42 CFR 401.108 - CMS rulings.

Science.gov (United States)

2010-10-01

... 42 Public Health 2 2010-10-01 2010-10-01 false CMS rulings. 401.108 Section 401.108 Public Health... GENERAL ADMINISTRATIVE REQUIREMENTS Confidentiality and Disclosure § 401.108 CMS rulings. (a) After... regulations, but which has been adopted by CMS as having precedent, may be published in the Federal Register...

File list: Oth.NoD.20.Epitope_tags.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Oth.NoD.20.Epitope_tags.AllCell sacCer3 TFs and others Epitope tags No description ...http://dbarchive.biosciencedbc.jp/kyushu-u/sacCer3/assembled/Oth.NoD.20.Epitope_tags.AllCell.bed ...

Data Scouting in CMS

CERN Document Server

Anderson, Dustin James

2016-01-01

In 2011, the CMS collaboration introduced Data Scouting as a way to produce physics results with events that cannot be stored on disk, due to resource limits in the data acquisition and offline infrastructure. The viability of this technique was demonstrated in 2012, when 18 fb$^{-1}$ of collision data at $\\sqrt{s}$ = 8 TeV were collected. The technique is now a standard ingredient of CMS and ATLAS data-taking strategy. In this talk, we present the status of data scouting in CMS and the improvements introduced in 2015 and 2016, which promoted data scouting to a full-fledged, flexible discovery tool for the LHC Run II.

Open access to high-level data and analysis tools in the CMS experiment at the LHC

International Nuclear Information System (INIS)

Calderon, A; Rodriguez-Marrero, A; Colling, D; Huffman, A; Lassila-Perini, K; McCauley, T; Rao, A; Sexton-Kennedy, E

2015-01-01

The CMS experiment, in recognition of its commitment to data preservation and open access as well as to education and outreach, has made its first public release of high-level data under the CC0 waiver: up to half of the proton-proton collision data (by volume) at 7 TeV from 2010 in CMS Analysis Object Data format. CMS has prepared, in collaboration with CERN and the other LHC experiments, an open-data web portal based on Invenio. The portal provides access to CMS public data as well as to analysis tools and documentation for the public. The tools include an event display and histogram application that run in the browser. In addition a virtual machine containing a CMS software environment along with XRootD access to the data is available. Within the virtual machine the public can analyse CMS data; example code is provided. We describe the accompanying tools and documentation and discuss the first experiences of data use. (paper)

CMS data and workflow management system

CERN Document Server

Fanfani, A; Bacchi, W; Codispoti, G; De Filippis, N; Pompili, A; My, S; Abbrescia, M; Maggi, G; Donvito, G; Silvestris, L; Calzolari, F; Sarkar, S; Spiga, D; Cinquili, M; Lacaprara, S; Biasotto, M; Farina, F; Merlo, M; Belforte, S; Kavka, C; Sala, L; Harvey, J; Hufnagel, D; Fanzago, F; Corvo, M; Magini, N; Rehn, J; Toteva, Z; Feichtinger, D; Tuura, L; Eulisse, G; Bockelman, B; Lundstedt, C; Egeland, R; Evans, D; Mason, D; Gutsche, O; Sexton-Kennedy, L; Dagenhart, D W; Afaq, A; Guo, Y; Kosyakov, S; Lueking, L; Sekhri, V; Fisk, I; McBride, P; Bauerdick, L; Bakken, J; Rossman, P; Wicklund, E; Wu, Y; Jones, C; Kuznetsov, V; Riley, D; Dolgert, A; van Lingen, F; Narsky, I; Paus, C; Klute, M; Gomez-Ceballos, G; Piedra-Gomez, J; Miller, M; Mohapatra, A; Lazaridis, C; Bradley, D; Elmer, P; Wildish, T; Wuerthwein, F; Letts, J; Bourilkov, D; Kim, B; Smith, P; Hernandez, J M; Caballero, J; Delgado, A; Flix, J; Cabrillo-Bartolome, I; Kasemann, M; Flossdorf, A; Stadie, H; Kreuzer, P; Khomitch, A; Hof, C; Zeidler, C; Kalini, S; Trunov, A; Saout, C; Felzmann, U; Metson, S; Newbold, D; Geddes, N; Brew, C; Jackson, J; Wakefield, S; De Weirdt, S; Adler, V; Maes, J; Van Mulders, P; Villella, I; Hammad, G; Pukhaeva, N; Kurca, T; Semneniouk, I; Guan, W; Lajas, J A; Teodoro, D; Gregores, E; Baquero, M; Shehzad, A; Kadastik, M; Kodolova, O; Chao, Y; Ming Kuo, C; Filippidis, C; Walzel, G; Han, D; Kalinowski, A; Giro de Almeida, N M; Panyam, N

2008-01-01

CMS expects to manage many tens of peta bytes of data to be distributed over several computing centers around the world. The CMS distributed computing and analysis model is designed to serve, process and archive the large number of events that will be generated when the CMS detector starts taking data. The underlying concepts and the overall architecture of the CMS data and workflow management system will be presented. In addition the experience in using the system for MC production, initial detector commissioning activities and data analysis will be summarized.

Debugging Data Transfers in CMS

CERN Document Server

Bagliesi, G; Bloom, K; Bockelman, B; Bonacorsi, D; Fisk, I; Flix, J; Hernandez, J; D'Hondt, J; Kadastik, M; Klem, J; Kodolova, O; Kuo, C M; Letts, J; Maes, J; Magini, N; Metson, S; Piedra, J; Pukhaeva, N; Tuura, L; Sonajalg, S; Wu, Y; Van Mulders, P; Villella, I; Wurthwein, F

2010-01-01

The CMS experiment at CERN is preparing for LHC data taking in several computing preparation activities. In early 2007 a traffic load generator infrastructure for distributed data transfer tests called the LoadTest was designed and deployed to equip the WLCG sites that support CMS with a means for debugging, load-testing and commissioning data transfer routes among CMS computing centres. The LoadTest is based upon PhEDEx as a reliable, scalable data set replication system. The Debugging Data Transfers (DDT) task force was created to coordinate the debugging of the data transfer links. The task force aimed to commission most crucial transfer routes among CMS sites by designing and enforcing a clear procedure to debug problematic links. Such procedure aimed to move a link from a debugging phase in a separate and independent environment to a production environment when a set of agreed conditions are achieved for that link. The goal was to deliver one by one working transfer routes to the CMS data operations team...

LHCC COMPREHENSIVE REVIEW OF CMS (JULY 07)

CERN Multimedia

Extract from the Draft Report 1. EXECUTIVE SUMMARY The CMS Collaboration has made significant progress towards producing a detector ready for LHC operation in 2008. The past year saw all sub-detector groups success fully produce high-quality components and modules, and integrate them into the final objects to be installed into the CMS magnet. Installation and commissioning of final components in the CMS UXC55 cavern are well-under-way. In particular, the heavy lowering of detector elements into the CMS experiment cavern is a major success. The new CMS master schedule V36 incorporates the revised LHC machine schedule and includes an optimized detector sequencing. In spite of various delays, it remains possible that CMS will have an initial detector ready to exploit the initial LHC run in spring 2008. Installation of the Electromagnetic Calorimeter End-Cap (EE) and Pre-shower (ES) detectors is scheduled to be completed no sooner than July 2008 and CMS now plans to install the complete Pixel Detector for ...

Guido Tonelli elected next CMS spokesperson

CERN Multimedia

2009-01-01

Guido Tonelli has been elected as the next CMS spokesperson. He will take over from Jim Virdee on January 1, 2010, and will head the collaboration through the first crucial year of data-taking. Guido Tonelli, CMS spokesperson-elect, into the CMS cavern. "It will be very tough and there will be enormous pressure," explains Guido Tonelli, CMS spokesperson-elect. "It will be the first time that CMS will run for a whole year so it is important to go through the checklist to be able to take good quality data." Tonelli, who is currently CMS Deputy spokesperson, will take over from Jim Virdee on January 1, 2010 – only a few months into CMS’s first full year of data-taking. "The collisions will probably be different to our expectations. So it’s going to take the effort of the entire collaboration worldwide to be ready for this new phase." Born in Italy, Tonelli originally studied at the University of Pisa, where he is now a Professo...

Distributed computing grid experiences in CMS

CERN Document Server

Andreeva, Julia; Barrass, T; Bonacorsi, D; Bunn, Julian; Capiluppi, P; Corvo, M; Darmenov, N; De Filippis, N; Donno, F; Donvito, G; Eulisse, G; Fanfani, A; Fanzago, F; Filine, A; Grandi, C; Hernández, J M; Innocente, V; Jan, A; Lacaprara, S; Legrand, I; Metson, S; Newbold, D; Newman, H; Pierro, A; Silvestris, L; Steenberg, C; Stockinger, H; Taylor, Lucas; Thomas, M; Tuura, L; Van Lingen, F; Wildish, Tony

2005-01-01

The CMS experiment is currently developing a computing system capable of serving, processing and archiving the large number of events that will be generated when the CMS detector starts taking data. During 2004 CMS undertook a large scale data challenge to demonstrate the ability of the CMS computing system to cope with a sustained data- taking rate equivalent to 25% of startup rate. Its goals were: to run CMS event reconstruction at CERN for a sustained period at 25 Hz input rate; to distribute the data to several regional centers; and enable data access at those centers for analysis. Grid middleware was utilized to help complete all aspects of the challenge. To continue to provide scalable access from anywhere in the world to the data, CMS is developing a layer of software that uses Grid tools to gain access to data and resources, and that aims to provide physicists with a user friendly interface for submitting their analysis jobs. This paper describes the data challenge experience with Grid infrastructure ...

CMS Status

International Nuclear Information System (INIS)

Dobrzynski, L.

2007-01-01

The status of the construction and installation of CMS detector is reviewed. The 4T magnet is cold since end of February 2006. Its commissioning up to the nominal field started in July 2006 allowing a Cosmic Challenge in which elements of the final detector are involved. All big mechanical pieces equipped with muons chambers have been assembled in the surface hall SX5. Since mid July the detector is closed with commissioned HCAL, two ECAL supermodules and representative elements of the silicon tracker. The trigger system as well as the DAQ are tested. After the achievement of the physics TDR, CMS is now ready for the promising signal hunting. (author)

New Management for CMS

CERN Document Server

CERN Bulletin

2010-01-01

As of January 2010, Guido Tonelli becomes the new CMS Spokesperson with a two-year term of office. A Professor of General Physics at the University of Pisa, Italy, and a CERN Staff Member since January 2010, Tonelli had already been appointed as Deputy Spokesperson under the previous management. He has taken over from Jim Virdee, who was CMS Spokesperson from January 2007 to December 2009. Guido Tonelli, new CMS spokesperson At the same time as Tonelli becomes Spokesperson, two new Deputies, Albert De Roeck and Joe Incandela, as well as a whole new set of Coordinators, are also starting their terms of office. ”With the first data-taking run we have shown that CMS is an excellent experiment. The next challenge will be to transform CMS into a discovery machine with a view to making it synonymous with scientific excellence. This will be very tough but, again, the winning element will be the focus and coherent effort of the whole collaboration. On my side I'll do my best but I will need...

Long-Range Near-Side Angular Correlations in Proton-Proton Interactions in CMS.

CERN Multimedia

CERN. Geneva; Roland, Gunther

2010-01-01

The CMS Collaboration Results on two-particle angular correlations for charged particles emitted in proton-proton collisions at center of mass energies of 0.9, 2.36 and 7TeV over a broad range of pseudorapidity (η) and azimuthal angle (φ) are presented using data collected with the CMS detector at the LHC. Short-range correlations in ∆η, which are studied in minimum bias events, are characterized using a simple independent cluster parameterization in order to quantify their strength (cluster size) and their extent in η (cluster decay width). Long-range azimuthal correlations are studied more differentially as a function of charged particle multiplicity and particle transverse momentum using a 980nb−1 data set at 7TeV. In high multiplicity events, a pronounced structure emerges in the two-dimensional correlation function for particles in intermediate pT’s of 1-3GeV/c, 2.0 EVO Universe, password "seminar"; Phone Bridge ID: 2330444 Password: 5142

Multiple-view, multiple-selection visualization of simulation geometry in CMS

CERN Document Server

Mrak Tadel, Alja

2012-01-01

Fireworks, the event-display program of CMS, was extended with an advanced geometry visualization package. ROOT's TGeo geometry is used as internal representation, shared among several geometry views. Each view is represented by a GUI list-tree widget, implemented as a flat vector to allow for fast searching, selection, and filtering by material type, node name, and shape type. Display of logical and physical volumes is supported. Color, transparency, and visibility flags can be modified for each node or for a selection of nodes. Further operations, like opening of a new view or changing of the root node, can be performed via a context menu. Node selection and graphical properties determined by the list-tree view can be visualized in any 3D graphics view of Fireworks. As each 3D view can display any number of geometry views, a user is free to combine different geometry-view selections within the same 3D view. Node-selection by proximity to a given point is possible. A visual clipping box can be set for each g...

Distributed Analysis in CMS

CERN Document Server

Fanfani, Alessandra; Sanches, Jose Afonso; Andreeva, Julia; Bagliesi, Giusepppe; Bauerdick, Lothar; Belforte, Stefano; Bittencourt Sampaio, Patricia; Bloom, Ken; Blumenfeld, Barry; Bonacorsi, Daniele; Brew, Chris; Calloni, Marco; Cesini, Daniele; Cinquilli, Mattia; Codispoti, Giuseppe; D'Hondt, Jorgen; Dong, Liang; Dongiovanni, Danilo; Donvito, Giacinto; Dykstra, David; Edelmann, Erik; Egeland, Ricky; Elmer, Peter; Eulisse, Giulio; Evans, Dave; Fanzago, Federica; Farina, Fabio; Feichtinger, Derek; Fisk, Ian; Flix, Josep; Grandi, Claudio; Guo, Yuyi; Happonen, Kalle; Hernandez, Jose M; Huang, Chih-Hao; Kang, Kejing; Karavakis, Edward; Kasemann, Matthias; Kavka, Carlos; Khan, Akram; Kim, Bockjoo; Klem, Jukka; Koivumaki, Jesper; Kress, Thomas; Kreuzer, Peter; Kurca, Tibor; Kuznetsov, Valentin; Lacaprara, Stefano; Lassila-Perini, Kati; Letts, James; Linden, Tomas; Lueking, Lee; Maes, Joris; Magini, Nicolo; Maier, Gerhild; McBride, Patricia; Metson, Simon; Miccio, Vincenzo; Padhi, Sanjay; Pi, Haifeng; Riahi, Hassen; Riley, Daniel; Rossman, Paul; Saiz, Pablo; Sartirana, Andrea; Sciaba, Andrea; Sekhri, Vijay; Spiga, Daniele; Tuura, Lassi; Vaandering, Eric; Vanelderen, Lukas; Van Mulders, Petra; Vedaee, Aresh; Villella, Ilaria; Wicklund, Eric; Wildish, Tony; Wissing, Christoph; Wurthwein, Frank

2009-01-01

The CMS experiment expects to manage several Pbytes of data each year during the LHC programme, distributing them over many computing sites around the world and enabling data access at those centers for analysis. CMS has identified the distributed sites as the primary location for physics analysis to support a wide community with thousands potential users. This represents an unprecedented experimental challenge in terms of the scale of distributed computing resources and number of user. An overview of the computing architecture, the software tools and the distributed infrastructure is reported. Summaries of the experience in establishing efficient and scalable operations to get prepared for CMS distributed analysis are presented, followed by the user experience in their current analysis activities.

The development and validation of the Closed-set Mandarin Sentence (CMS) test.

Science.gov (United States)

Tao, Duo-Duo; Fu, Qian-Jie; Galvin, John J; Yu, Ya-Feng

2017-09-01

Matrix-styled sentence tests offer a closed-set paradigm that may be useful when evaluating speech intelligibility. Ideally, sentence test materials should reflect the distribution of phonemes within the target language. We developed and validated the Closed-set Mandarin Sentence (CMS) test to assess Mandarin speech intelligibility in noise. CMS test materials were selected to be familiar words and to represent the natural distribution of vowels, consonants, and lexical tones found in Mandarin Chinese. Ten key words in each of five categories (Name, Verb, Number, Color, and Fruit) were produced by a native Mandarin talker, resulting in a total of 50 words that could be combined to produce 100,000 unique sentences. Normative data were collected in 10 normal-hearing, adult Mandarin-speaking Chinese listeners using a closed-set test paradigm. Two test runs were conducted for each subject, and 20 sentences per run were randomly generated while ensuring that each word was presented only twice in each run. First, the level of the words in each category were adjusted to produce equal intelligibility in noise. Test-retest reliability for word-in-sentence recognition was excellent according to Cronbach's alpha (0.952). After the category level adjustments, speech reception thresholds (SRTs) for sentences in noise, defined as the signal-to-noise ratio (SNR) that produced 50% correct whole sentence recognition, were adaptively measured by adjusting the SNR according to the correctness of response. The mean SRT was -7.9 (SE=0.41) and -8.1 (SE=0.34) dB for runs 1 and 2, respectively. The mean standard deviation across runs was 0.93 dB, and paired t-tests showed no significant difference between runs 1 and 2 (p=0.74) despite random sentences being generated for each run and each subject. The results suggest that the CMS provides large stimulus set with which to repeatedly and reliably measure Mandarin-speaking listeners' speech understanding in noise using a closed-set paradigm.

The construction of the CMS electromagnetic calorimeter: delivery of the 3rd and 4th endcap "Dees" and Ring Flanges to CERN

CERN Multimedia

2006-01-01

Delivery of the 3rd and 4th Dees and Ring Flanges of the CMS-ECAL endcaps to CERN. The pictures show also an endcap crystal with its VPT (Vacuum PhotoTriode), the aluminium blackplates of the endcap Dees and four mock supercrystals (5x5 crystals) attached in their position on the backplate, along with 138 positional spacers. Finally, endcap assembly in the CMS construction hall in Cessy (neighbouring France) is also shown.

L'offre en soins auprès de la personne âgée souffrant de constipation perçue par les infirmières du CMS: une approche éducative au travers du prisme d'une vision humaniste

OpenAIRE

Fiori, Federica

2008-01-01

Ce mémoire vise à décrire et à expliciter la nature de la fonction éducative soignante des infirmières du CMS auprès de personnes âgées vivant à domicile et souffrant de constipation. Il s'agit d'une recherche de type qualitatif qui consiste à donner la parole auy professionnelles du CMS. Des entretiens semi-dirigés ont été réalisés auprès de trois infirmières travaillant chacune dans un CMS différent. Le jury a relevé les qualités suivantes : - capacité à faire vivre les cadres de références...

Density functional calculations on the geometric structure and properties of the 3d transition metal atom doped endohedral fullerene M@C20F20 (M = Sc–Ni)

International Nuclear Information System (INIS)

Chun-Mei, Tang; Wei-Hua, Zhu; Kai-Ming, Deng

2010-01-01

This paper uses the generalised gradient approximation based on density functional theory to analyse the geometric structure and properties of the 3d transition metal atom doped endohedral fullerene M@C 20 F 20 (M = Sc–Ni). The geometric optimization shows that the cage centre is the most stable position for M, forming the structure named as M@C 20 F 20 -4. The inclusion energy, zero-point energy, and energy gap calculations tell us that N@C 20 F 20 -4 should be thermodynamically and kinetically stablest. M@C 20 F 20 -4 (M = Sc–Co) possesses high magnetic moments varied from 1 to 6 μ B , while Ni@C 20 F 20 -4 is nonmagnetic. The Ni–C bond in Ni@C 20 F 20 -4 contains both the covalent and ionic characters

“Exploring High Energy Interactions with CMS at the LHC”

Energy Technology Data Exchange (ETDEWEB)

Sulak, Lawrence R. [; Boston Univ., MA (United States)

2016-08-01

This High Energy Physics research project achieved its goal of exploring high-energy interactions with 7, 8 and 13 TeV data accumulated by CMS at the Energy Frontier. For the original hadron calorimeter (HCAL) and for its upgrade during Long Shutdown 1 (LS1), the PI helped propose and implement the upgrading the phototubes, new electronics, and fast timing of the hadronic forward (HF) and hadronic outer (HO) calorimeters of CMS, projects which he had forcefully advocated since the inception of CMS. The PI and his colleagues Prof. J. Rohlf and chief electronics engineer E. Hazen, his post-docs A. Heister and S. Girgis, and his graduate students (P. Lawson and D. Arcaro) contributed software tools used in perfecting of μTCA and Advanced Mezzanine Card (AMC13) electronics, the PC board that provides clock, timing and DAQ service for HCAL (and now many other subdetectors and central systems in the upgraded CMS detector). This Task reaped the benefits of these hardware contributions 1) to hermiticity for missing energy searches, and 2) to forward tagging jets for Vector Boson Fusion processes by analyzing and publishing early data, including that for the Higgs discovery and for exotic and supersymmetric searches.

Enabling opportunistic resources for CMS Computing Operations

Energy Technology Data Exchange (ETDEWEB)

Hufnagel, Dick [Fermilab

2015-11-19

With the increased pressure on computing brought by the higher energy and luminosity from the LHC in Run 2, CMS Computing Operations expects to require the ability to utilize “opportunistic” resources — resources not owned by, or a priori configured for CMS — to meet peak demands. In addition to our dedicated resources we look to add computing resources from non CMS grids, cloud resources, and national supercomputing centers. CMS uses the HTCondor/glideinWMS job submission infrastructure for all its batch processing, so such resources will need to be transparently integrated into its glideinWMS pool. Bosco and parrot wrappers are used to enable access and bring the CMS environment into these non CMS resources. Here we describe our strategy to supplement our native capabilities with opportunistic resources and our experience so far using them.

Muon reconstruction performance using cosmic rays in CMS

CERN Document Server

Calderon, Alicia

2009-01-01

After the incident with the Large Hadron Collider (LHC) in September 2008, the Compact Muon Solenoid (CMS) collaboration invested a considerable effort in further refining the understanding of the detector using cosmic muon data. About 300 million cosmic events were recorded with the CMS detector fully operational and the central solenoid switched on at the nominal value of 3.8 Tesla. The resulting data set provides ample statistics to study in great detail the detector performance and allows to analyze properties of cosmic rays. We present recent results on detector performance from the cosmic muon analysis activities and compare cosmic data to dedicated cosmic Monte Carlo samples. These results demonstrate the readiness of the CMS detector to do physics analysis with muons, and the study of cosmic muon properties provides interesting links to astrophysics.

Moment of truth for CMS

CERN Multimedia

2006-01-01

One of the first events reconstructed in the Muon Drift Tubes, the Hadron Calorimeter and elements of the Silicon Tracker (TK) at 3 Tesla. The atmosphere in the CMS control rooms was electric. Everbody was at the helm for the first full-scale testing of the experiment. This was a crunch moment for the entire collaboration. On Tuesday, 22 August the magnet attained almost its nominal power of 4 Tesla! At the same moment, in a tiny improvised control room, the physicists were keyed up to test the entire detector system for the first time. The first cosmic ray tracks appeared on their screens in the week of 15 August. The tests are set to continue for several weeks more until the first CMS components are lowered into their final positions in the cavern.

Last crystals for the CMS chandelier

CERN Multimedia

2008-01-01

In March, the last crystals for CMS’s electromagnetic calorimeter arrived from Russia and China. Like dedicated jewellers crafting an immense chandelier, the CMS ECAL collaborators are working extremely hard to install all the crystals before the start-up of the LHC. One of the last CMS end-cap crystals, complete with identification bar code. Lead tungstate crystals mounted onto one section of the CMS ECAL end caps. Nearly 10 years after the first production crystal arrived at CERN in September 1998, the very last shipment has arrived. These final crystals will be used to complete the end-caps of the electromagnetic calorimeter (ECAL) at CMS. All in all, there are more than 75,000 crystals in the ECAL. The huge quantity of CMS lead tungstate crystals used in the ECAL corresponds to the highest volume ever produced for a single experiment. The excellent quality of the crystals, both in ter...

The CMS tracker calibration workflow: Experience with cosmic ray data

International Nuclear Information System (INIS)

Frosali, Simone

2010-01-01

During the second part of 2008 a CMS commissioning was performed with the acquisition of cosmic events in global runs. Cosmic rays detected in the muon chambers were used to trigger the readout of all CMS subdetectors in the general data acquisition system. A total of about 300M of tracks were collected by the CMS Muon Chambers with a 3.8T magnetic field produced by the CMS superconducting solenoid, 6M of which pointing to the tracker region and reconstructed by the Si-Strip Tracker (SST) detectors. Other 1M of cosmic tracks were collected with the magnetic field off. Using the cosmic data available it was possible to validate the performances of the CMS tracker calibration workflows. In this paper the adopted calibration workflow is described. In particular, the three main calibration workflows requested for the low level reconstruction of the SST, i.e. gain calibration, Lorentz angle calibration and bad components identification, are described. The results obtained using cosmic tracks for these three calibration workflows are also presented.

Aligning the CMS Muon Endcap Detector with a System of Optical Sensors

CERN Document Server

Hohlmann, Marcus; Guragain, Samir; Andreev, Valery; Yang, Xiaofeng; Bellinger, James; Carlsmith, Duncan; Feyzi, Farshid; Loveless, Richard J; Northacker, David; Eartly, David P; Prokofiev, Oleg; Sknar, Vladimir

2008-01-01

The positions and orientations of one sixth of 468 large cathode strip chambers in the endcaps of the CMS muon detector are directly monitored by several hundred sensors including 2-D optical sensors with linear CCDs illuminated by cross-hair lasers. Position measurements obtained by photogrammetry and survey under field-off conditions show that chambers in the +Z endcap have been placed on the yoke disks with an average accuracy of $\\approx 1$ mm in all 3 dimensions. We reconstruct absolute Z$_{CMS}$ positions and orientations of chambers at B=0T and B=4T using data from the optical alignment system. The measured position resolution and sensitivity to relative motion is about 60 $\\mu m$. The precision for measuring chamber positions taking into account mechanical tolerances is \\mbox{$\\approx 270 \\mu m$}. Comparing reconstruction of optical alignment data and photogrammetry measurements at B=0T indicates an accuracy of $\\approx$ 680 $\\mu m$ currently achieved with the hardware alignment system. Optical positi...

CMS ready for winding up

CERN Multimedia

2003-01-01

End of October, the last lengths of conductor for the CMS superconducting solenoid have been produced. This is another large sub-project of the CMS Magnet being successfully finished, after completion of the Yoke last year (see Bulletin 43/2002).

A new method of 3-D cephalometry Part I: the anatomic Cartesian 3-D reference system.

NARCIS (Netherlands)

Swennen, G.R.J.; Schutyser, F.A.C.; Barth, E.L.; Groeve, P. De; Mey, A. De

2006-01-01

The purpose of this study was to present a new innovative three-dimensional (3-D) cephalometric method. Part I deals with the set-up and validation of a voxel-based semi-automatic 3-D cephalometric reference system. The CT data (DICOM 3.0 files) of 20 control patients with normal skeletal

CMS Comic Book

CERN Document Server

Gill, Karl Aaron

2006-01-01

Titled "CMS Particle Hunter," this colorful comic book style brochure explains to young budding scientists and science enthusiasts in colorful animation how the CMS detector was made, its main parts, and what scientists hope to find using this complex tool. Book invites young students to get involved in particle physics themselves to join the adventure. Written by Dave Barney and Aline Guevera. Layout and drawings by Eric Paiharey and Frederic Vignaux. Available in English, French, German, Italian, Spanish and Portuguese. Year Produced: 2006. Update: September 2013.

CMS Centres Worldwide - a New Collaborative Infrastructure

International Nuclear Information System (INIS)

Taylor, Lucas

2011-01-01

The CMS Experiment at the LHC has established a network of more than fifty inter-connected 'CMS Centres' at CERN and in institutes in the Americas, Asia, Australasia, and Europe. These facilities are used by people doing CMS detector and computing grid operations, remote shifts, data quality monitoring and analysis, as well as education and outreach. We present the computing, software, and collaborative tools and videoconferencing systems. These include permanently running 'telepresence' video links (hardware-based H.323, EVO and Vidyo), Webcasts, and generic Web tools such as CMS-TV for broadcasting live monitoring and outreach information. Being Web-based and experiment-independent, these systems could easily be extended to other organizations. We describe the experiences of using CMS Centres Worldwide in the CMS data-taking operations as well as for major media events with several hundred TV channels, radio stations, and many more press journalists simultaneously around the world.

Position dependence of charge collection in prototype sensors for the CMS pixel detector

CERN Document Server

Rohe, Tilman; Chiochia, Vincenzo; Cremaldi, Lucien M; Cucciarelli, Susanna; Dorokhov, Andrei; Konecki, Marcin; Prokofiev, Kirill; Regenfus, Christian; Sanders, David A; Son Seung Hee; Speer, Thomas; Swartz, Morris

2004-01-01

This paper reports on the sensor R&D activity for the CMS pixel detector. Devices featuring several design and technology options have been irradiated up to a proton fluence1 of 1 multiplied by 10**1**5 n //e//q/cm**2 at the CERN PS. Afterward, they were bump bonded to unirradiated readout chips and tested using high energy pions in the H2 beam line of the CERN SPS. The readout chip allows a nonzero suppressed full analogue readout and therefore a good characterization of the sensors in terms of noise and charge collection properties. The position dependence of signal is presented and the differences between the two sensor options are discussed. 20 Refs.

The CMS Beam Halo Monitor Electronics

CERN Document Server

AUTHOR|(CDS)2080684; Fabbri, F.; Grassi, T.; Hughes, E.; Mans, J.; Montanari, A.; Orfanelli, S.; Rusack, R.; Torromeo, G.; Stickland, D.P.; Stifter, K.

2016-01-01

The CMS Beam Halo Monitor has been successfully installed in the CMS cavern in LHC Long Shutdown 1 for measuring the machine induced background for LHC Run II. The system is based on 40 detector units composed of synthetic quartz Cherenkov radiators coupled to fast photomultiplier tubes. The readout electronics chain uses many components developed for the Phase 1 upgrade to the CMS Hadronic Calorimeter electronics, with dedicated firmware and readout adapted to the beam monitoring requirements. The PMT signal is digitized by a charge integrating ASIC (QIE10), providing both the signal rise time, with few ns resolution, and the charge integrated over one bunch crossing. The backend electronics uses microTCA technology and receives data via a high-speed 5 Gbps asynchronous link. It records histograms with sub-bunch crossing timing resolution and is readout by IPbus using the newly designed CMS data acquisition for non-event based data. The data is processed in real time and published to CMS and the LHC, providi...

File list: InP.NoD.20.Input_control.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available InP.NoD.20.Input_control.AllCell dm3 Input control Input control No description htt...p://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/InP.NoD.20.Input_control.AllCell.bed ...

File list: NoD.Adl.20.AllAg.Adult_male_fatbody [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available NoD.Adl.20.AllAg.Adult_male_fatbody dm3 No description Adult Adult male fatbody htt...p://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/NoD.Adl.20.AllAg.Adult_male_fatbody.bed ...

Electrical characterization of S/C conductor for the CMS solenoid

CERN Document Server

Fabbricatore, P; Farinon, S; Greco, Michela; Kircher, F; Musenich, R

2005-01-01

The Compact Muon Solenoid (CMS) is one of the general-purpose detectors to be provided for the LHC project at CERN. The design field of the CMS superconducting magnet is 4 T, the magnetic length is 12.5 m and the free bore is 6 m. The coil is wound from 20 high purity aluminum-stabilized NbTi conductors with a total length of 45 km. The main peculiarity of the CMS magnet among other existing thin detector solenoids is its sandwich-type aluminum-stabilized superconductor. This special feature was chosen in order to have a mechanically self-supporting winding structure. We measured the critical current of all the 21 finished conductors in fields up to 6 T using the Ma.Ri.S.A. test facility at INFN-Genova. We compare these results with the critical current of single strands measured by CEA- Saclay, extracted from the conductor after the co-extrusion. A comparison among the measurements provides information about the possible critical current degradation and assures an accurate quality control of the conductor pr...

File list: Pol.NoD.20.RNA_polymerase_II.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Pol.NoD.20.RNA_polymerase_II.AllCell sacCer3 RNA polymerase RNA polymerase II No de...scription http://dbarchive.biosciencedbc.jp/kyushu-u/sacCer3/assembled/Pol.NoD.20.RNA_polymerase_II.AllCell.bed ...

The CMS Computing Model

International Nuclear Information System (INIS)

Bonacorsi, D.

2007-01-01

The CMS experiment at LHC has developed a baseline Computing Model addressing the needs of a computing system capable to operate in the first years of LHC running. It is focused on a data model with heavy streaming at the raw data level based on trigger, and on the achievement of the maximum flexibility in the use of distributed computing resources. The CMS distributed Computing Model includes a Tier-0 centre at CERN, a CMS Analysis Facility at CERN, several Tier-1 centres located at large regional computing centres, and many Tier-2 centres worldwide. The workflows have been identified, along with a baseline architecture for the data management infrastructure. This model is also being tested in Grid Service Challenges of increasing complexity, coordinated with the Worldwide LHC Computing Grid community

Comparative analysis of mitochondrial genomes between the hau cytoplasmic male sterility (CMS) line and its iso-nuclear maintainer line in Brassica juncea to reveal the origin of the CMS-associated gene orf288.

Science.gov (United States)

Heng, Shuangping; Wei, Chao; Jing, Bing; Wan, Zhengjie; Wen, Jing; Yi, Bin; Ma, Chaozhi; Tu, Jinxing; Fu, Tingdong; Shen, Jinxiong

2014-04-30

Cytoplasmic male sterility (CMS) is not only important for exploiting heterosis in crop plants, but also as a model for investigating nuclear-cytoplasmic interaction. CMS may be caused by mutations, rearrangement or recombination in the mitochondrial genome. Understanding the mitochondrial genome is often the first and key step in unraveling the molecular and genetic basis of CMS in plants. Comparative analysis of the mitochondrial genome of the hau CMS line and its maintainer line in B. juneca (Brassica juncea) may help show the origin of the CMS-associated gene orf288. Through next-generation sequencing, the B. juncea hau CMS mitochondrial genome was assembled into a single, circular-mapping molecule that is 247,903 bp in size and 45.08% in GC content. In addition to the CMS associated gene orf288, the genome contains 35 protein-encoding genes, 3 rRNAs, 25 tRNA genes and 29 ORFs of unknown function. The mitochondrial genome sizes of the maintainer line and another normal type line "J163-4" are both 219,863 bp and with GC content at 45.23%. The maintainer line has 36 genes with protein products, 3 rRNAs, 22 tRNA genes and 31 unidentified ORFs. Comparative analysis the mitochondrial genomes of the hau CMS line and its maintainer line allowed us to develop specific markers to separate the two lines at the seedling stage. We also confirmed that different mitotypes coexist substoichiometrically in hau CMS lines and its maintainer lines in B. juncea. The number of repeats larger than 100 bp in the hau CMS line (16 repeats) are nearly twice of those found in the maintainer line (9 repeats). Phylogenetic analysis of the CMS-associated gene orf288 and four other homologous sequences in Brassicaceae show that orf288 was clearly different from orf263 in Brassica tournefortii despite of strong similarity. The hau CMS mitochondrial genome was highly rearranged when compared with its iso-nuclear maintainer line mitochondrial genome. This study may be useful for studying the

Soft QCD at CMS and ATLAS

CERN Document Server

Starovoitov, Pavel; The ATLAS collaboration

2018-01-01

A short overview of the recent soft QCD results from the ATLAS and CMS collaborations is presented. The inelastic cross section measurement by CMS at 13 TeV is summarised. The contribution of the diffractive processes to the very forward photon spectra studied by ATLAS and LHCf is discussed. The ATLAS measurements of the exclusive two-photon production of the muon pairs is presented and compared to the previous ATLAS and CMS results.

Search for large spatial extra dimensions with dimuon events from 7 TeV pp collisions at CMS

International Nuclear Information System (INIS)

Schmitz, Stefan Antonius

2013-01-01

Data recorded by the CMS (Compact Muon Solenoid) experiment is analyzed to study the production of high-mass muon pairs in proton-proton collisions at the LHC (Large Hadron Collider). Most of the presented results are based on a dataset of 5.3 fb -1 at a center-of-mass energy of √(s)=7 TeV. The interpretation of the measured dimuon mass spectrum focuses on a potential non-resonant signal from s-channel graviton exchange. Such a signature of new physics is motivated by the ADD (Arkani-Hamed, Dimopoulos, Dvali) model of large spatial extra dimensions. The main background for the search is given by the SM (Standard Model) prediction of neutral current Drell-Yan events. Other background sources like for example t anti t production are also considered. The Standard Model expectation is evaluated based on simulation studies and can be tested for dimuon masses below the signal region. Estimates of theory uncertainties on the background prediction and uncertainties related to the detector performance are included in the statistical evaluation of the measurement. The dimuon mass spectrum observed in the 2011 CMS dataset is found to be compatible with the SM expectation. For masses greater than 1.3 TeV, signal cross sections of greater than 0.84 fb -1 can be excluded at 95% confidence level. This result corresponds to an exclusion of values below 3.0 TeV for the ADD model parameters Λ T . A combination of dimuon, dielectron and diphoton results based on a dataset of about 2.0 fb -1 extends the excluded range to Λ T <3.3 TeV. Also limits based on the 2012 CMS dataset at collision energies of √(s)=8 TeV and some aspects of the CMS search for new dilepton resonances are briefly discussed.

23 CFR 500.109 - CMS.

Science.gov (United States)

2010-04-01

... 23 Highways 1 2010-04-01 2010-04-01 false CMS. 500.109 Section 500.109 Highways FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION TRANSPORTATION INFRASTRUCTURE MANAGEMENT MANAGEMENT AND MONITORING SYSTEMS Management Systems § 500.109 CMS. (a) For purposes of this part, congestion means the level at...

CMS - The Compact Muon Solenoid

CERN Multimedia

Bergauer, T; Waltenberger, W; Kratschmer, I; Treberer-treberspurg, W; Escalante del valle, A; Andreeva, I; Innocente, V; Camporesi, T; Malgeri, L; Marchioro, A; Moneta, L; Weingarten, W; Beni, N T; Cimmino, A; Rovere, M; Jafari, A; Lange, C G; Vartak, A P; Gilbert, A J; Pantaleo, F; Reis, T; Cucciati, G; Alipour tehrani, N; Stakia, A; Fallavollita, F; Pizzichemi, M; Rauco, G; Zhang, S; Hu, T; Yazgan, E; Zhang, H; Thomas-wilsker, J; Reithler, H K V; Philipps, B; Merschmeyer, M K; Heidemann, C A; Mukherjee, S; Geenen, H; Kuessel, Y; Weingarten, S; Gallo, E; Schwanenberger, C; Walsh bastos rangel, R; Beernaert, K S; De wit, A M; Elwood, A C; Connor, P; Lelek, A A; Wichmann, K H; Myronenko, V; Kovalchuk, N; Bein, S L; Dreyer, T; Scharf, C; Quast, G; Dierlamm, A H; Barth, C; Mol, X; Kudella, S; Schafer, D; Schimassek, R R; Matorras, F; Calderon tazon, A; Garcia ferrero, J; Bercher, M J; Sirois, Y; Callier, S; Depasse, P; Laktineh, I B; Grenier, G; Boudoul, G; Heath, G P; Hartley, D A; Quinton, S; Tomalin, I R; Harder, K; Francis, V B; Thea, A; Zhang, Z; Loukas, D; Hernath, S T; Naskar, K; Colaleo, A; Maggi, G P; Maggi, M; Loddo, F; Calabria, C; Campanini, R; Cuffiani, M; D'antone, I; Grandi, C; Navarria, F; Guiducci, L; Battilana, C; Tosi, N; Gulmini, M; Meola, S; Longo, E; Meridiani, P; Marzocchi, B; Schizzi, A; Cho, S; Ha, S; Kim, D H; Kim, G N; Md halid, M F B; Yusli, M N B; Dominik, W M; Bunkowski, K; Olszewski, M; Byszuk, A P; Rasteiro da silva, J C; Varela, J; Leong, Q; Sulimov, V; Vorobyev, A; Denisov, A; Murzin, V; Egorov, A; Lukyanenko, S; Postoev, V; Pashenkov, A; Solovey, A; Rubakov, V; Troitsky, S; Kirpichnikov, D; Lychkovskaya, N; Safronov, G; Fedotov, A; Toms, M; Barniakov, M; Olimov, K; Fazilov, M; Umaraliev, A; Dumanoglu, I; Bakirci, N M; Dozen, C; Demiroglu, Z S; Isik, C; Zeyrek, M; Yalvac, M; Ozkorucuklu, S; Chang, Y; Dolgopolov, A; Gottschalk, E E; Maeshima, K; Heavey, A E; Kramer, T; Kwan, S W L; Taylor, L; Tkaczyk, S M; Mokhov, N; Marraffino, J M; Mrenna, S; Yarba, V; Banerjee, B; Elvira, V D; Gray, L A; Holzman, B; Dagenhart, W; Canepa, A; Ryu, S C; Strobbe, N C; Adelman-mc carthy, J K; Contescu, A C; Andre, J O; Wu, J; Dittmer, S J; Bucinskaite, I; Zhang, J; Karchin, P E; Thapa, P; Zaleski, S G; Gran, J L; Wang, S; Zilizi, G; Raics, P P; Bhardwaj, A; Naimuddin, M; Smiljkovic, N; Stojanovic, M; Brandao malbouisson, H; De oliveira martins, C P; Tonelli manganote, E J; Medina jaime, M; Thiel, M; Laurila, S H; Graehling, P; Tonon, N; Blekman, F; Postiau, N J S; Leroux, P J; Van remortel, N; Janssen, X J; Di croce, D; Aleksandrov, A; Shopova, M F; Dogra, S M; Shinoda, A A; Arce, P; Daniel, M; Navarrete marin, J J; Redondo fernandez, I; Guirao elias, A; Cela ruiz, J M; Lottin, J; Gras, P; Kircher, F; Levesy, B; Payn, A; Guilloux, F; Negro, G; Leloup, C; Pasztor, G; Panwar, L; Bhatnagar, V; Bruzzi, M; Sciortino, S; Starodubtsev, O; Azzi, P; Conti, E; Lacaprara, S; Margoni, M; Rossin, R; Tosi, M; Fano', L; Lucaroni, A; Biino, C; Dattola, D; Rotondo, F; Ballestrero, A; Obertino, M M; Kiani, M B; Paterno, A; Magana villalba, R; Ramirez garcia, M; Reyes almanza, R; Gorski, M; Wrochna, G; Bluj, M J; Zarubin, A; Nozdrin, M; Ladygin, V; Malakhov, A; Golunov, A; Skrypnik, A; Sotnikov, A; Evdokimov, N; Tiurin, V; Lokhtin, I; Ershov, A; Platonova, M; Tyurin, N; Slabospitskii, S; Talov, V; Belikov, N; Ryazanov, A; Chao, Y; Tsai, J; Foord, A; Wood, D R; Orimoto, T J; Luckey, P D; Jaditz, S H; Stephans, G S; Darlea, G L; Di matteo, L; Maier, B; Trovato, M; Bhattacharya, S; Roberts, J B; Padley, P B; Tu, Z; Rorie, J T; Clarida, W J; Tiras, E; Khristenko, V; Cerizza, G; Pieri, M; Krutelyov, V; Saiz santos, M D; Klein, D S; Derdzinski, M; Murray, M J; Gray, J A; Minafra, N; Castle, J R; Bowen, J L S; Buterbaugh, K; Morrow, S I; Bunn, J; Newman, H; Spiropulu, M; Balcas, J; Lawhorn, J M; Thomas, S D; Panwalkar, S M; Kyriacou, S; Xie, Z; Ojalvo, I R; Salfeld-nebgen, J; Laird, E M; Wimpenny, S J; Yates, B R; Perry, T M; Schiber, C C; Diaz, D C; Uniyal, R; Mesic, B; Kolosova, M; Snow, G R; Lundstedt, C; Johnston, D; Zvada, M; Weitzel, D J; Damgov, J V; Cowden, C S; Giammanco, A; David, P N Y; Zobec, J; Cabrera jamoulle, J B; Daubie, E; Nash, J A; Evans, L; Hall, G; Nikitenko, A; Ryan, M J; Huffman, M A J; Styliaris, E; Evangelou, I; Sharan, M K; Roy, A; Rout, P K; Kalbhor, P N; Bagliesi, G; Braccini, P L; Ligabue, F; Boccali, T; Rizzi, A; Minuti, M; Oh, S; Kim, J; Sen, S; Boz evinay, M; Xiao, M; Hung, W T; Jensen, F O; Mulholland, T D; Kumar, A; Jones, M; Roozbahani, B H; Neu, C C; Thacker, H B; Wolfe, E M; Jabeen, S; Gilmore, J; Winer, B L; Rush, C J; Luo, W; Alimena, J M; Ko, W; Lander, R; Broadley, W H; Shi, M; Furic, I K; Low, J F; Bortignon, P; Alexander, J P; Zientek, M E; Conway, J V; Padilla fuentes, Y L; Florent, A H; Bravo, C B; Crotty, I M; Wenman, D L; Sarangi, T R; Ghabrous larrea, C; Gomber, B; Smith, N C; Long, K D; Roberts, J M; Hildreth, M D; Jessop, C P; Karmgard, D J; Loukas, N; Ferbel, T; Zielinski, M A; Cooper, S I; Jung, A; Van driessche, W G M; Fagot, A; Vermassen, B; Valchkova-georgieva, F K; Dimitrov, D S; Roumenin, T S; Podrasky, V; Re, V; Zucca, S; De canio, F; Romaniuk, R; Teodorescu, L; Krofcheck, D; Anderson, N G; Bell, S T; Salazar ibarguen, H A; Kudinov, V; Onishchenko, S; Naujikas, R; Lyubynskiy, V; Sobolev, O; Khan, M S; Adeel-ur-rehman, A; Hassan, Q U; Ali, I; Kreuzer, P K; Robson, A J; Gadrat, S G; Ivanov, A; Mendis, D; Da silva di calafiori, D R; Zeinali, M; Behnamian, H; Moroni, L; Malvezzi, S; Park, I; Pastika, N J; Oropeza barrera, C; Elkhateeb, E A A; Elmetenawee, W; Mohammed, Y; Tayel, E S A; Mcclatchey, R H; Kovacs, Z; Munir, K; Odeh, M; Magradze, E; Oikashvili, B; Shingade, P; Shukla, R A; Banerjee, S; Kumar, S; Jashal, B K; Grzanka, L; Adam, W; Ero, J; Fabjan, C; Jeitler, M; Rad, N K; Auffray hillemanns, E; Charkiewicz, A; Fartoukh, S; Garcia de enterria adan, D; Girone, M; Glege, F; Loos, R; Mannelli, M; Meijers, F; Sciaba, A; Meschi, E; Ricci, D; Petrucciani, G; Daguin, J; Vazquez velez, C; Karavakis, E; Nourbakhsh, S; Rabady, D S; Ceresa, D; Karacheban, O; Beguin, M; Kilminster, B J; Ke, Z; Meng, X; Zhang, Y; Tao, J; Romeo, F; Spiezia, A; Cheng, L; Zhukov, V; Feld, L W; Autermann, C T; Fischer, R; Erdweg, S; Kress, T H; Dziwok, C; Hansen, K; Schoerner-sadenius, T M; Marfin, I; Keaveney, J M; Diez pardos, C; Muhl, C W; Asawatangtrakuldee, C; Defranchis, M M; Asmuss, J P; Poehlsen, J A; Stober, F M H; Vormwald, B R; Kripas, V; Gonzalez vazquez, D; Kurz, S T; Niemeyer, C; Rieger, J O; Borovkov, A; Shvetsov, I; Sieber, G; Caspart, R; Iqbal, M A; Sander, O; Metzler, M B; Ardila perez, L E; Ruiz jimeno, A; Fernandez garcia, M; Scodellaro, L; Gonzalez sanchez, J F; Curras rivera, E; Semeniouk, I; Ochando, C; Bedjidian, M; Giraud, N A; Mathez, H; Zoccarato, Y D; Ianigro, J; Galbit, G C; Flacher, H U; Shepherd-themistocleous, C H; French, M J; Hill, J A; Jones, L L; Markou, A; Bencze, G L; Mishra, D K; Netrakanti, P K; Jha, V; Chudasama, R; Katta, S; Venditti, R; Cristella, L; Braibant-giacomelli, S; Dallavalle, G; Fabbri, F; Codispoti, G; Borgonovi, L; Caponero, M A; Berti, L; Fienga, F; Dafinei, I; Organtini, G; Del re, D; Pettinacci, V; Park, S K; Lee, K S; Kang, M; Kim, B; Park, H K; Kong, D J; Lee, S; Pak, S I; Zolkapli, Z B; Konecki, M A; Walczak, M B; Bargassa, P; Viegas guerreiro leonardo, N T; Levchenko, P; Orishchin, E; Suvorov, V; Uvarov, L; Gruzinskii, N; Pristavka, A; Kozlov, V; Radovskaia, A; Solovey, A; Kolosov, V; Vlassov, E; Parygin, P; Tumasyan, A; Topakli, H; Boran, F; Akin, I V; Oz, C; Gulmez, E; Atakisi, I O; Bakken, J A; Govi, G M; Lewis, J D; Shaw, T M; Bailleux, D; Stoynev, S E; Sexton-kennedy, E M; Huang, C; Lincoln, D W; Roser, R; Ito, A; Adams, M R; Apanasevich, L; Varelas, N; Sandoval gonzalez, I D; Hangal, D A; Yoo, J H; Ovcharova, A K; Bradmiller-feld, J W; Amin, N J; Miller, M P; Patterson, A S; Sharma, R K; Santoro, A; Lassila-perini, K M; Tuominiemi, J; Voutilainen, M A; Wu, X; Gross, L O; Le bihan, A; Fuks, B; Kieffer, E; Pansanel, J; Jansova, M; D'hondt, J; Abuzeid hassan, S A; Bilin, B; Beghin, D; Soultanov, G; Vankov, I D; Konstantinov, P B; Marra da silva, J; De souza santos, A; Arruda ramalho, L; Renker, D; Erdmann, W; Molinero vela, A; Fernandez bedoya, C; Bachiller perea, I; Chipaux, R; Faure, J D; Hamel de monchenault, G; Mandjavidze, I; Rander, J; Ferri, F; Leroy, C L; Machet, M; Nagy, M I; Felcini, M; Kaur, S; Saizu, M A; Civinini, C; Latino, G; Checchia, P; Ronchese, P; Vanini, S; Fantinel, S; Cecchi, C; Leonardi, R; Arneodo, M; Ruspa, M; Pacher, L; Rabadan trejo, R I; Mondragon herrera, C A; Golutvin, I; Zhiltsov, V; Melnichenko, I; Mjavia, D; Cheremukhin, A; Zubarev, E; Kalagin, V; Alexakhin, V; Mitsyn, V; Shulha, S; Vishnevskiy, A; Gavrilenko, M; Boos, E E; Obraztsov, S; Dubinin, M; Demiyanov, A; Dudko, L; Azhgirey, I; Chikilev, O; Turchanovich, L; Rurua, L; Hou, G W; Wang, M; Chang, P; Kumar, A; Liau, J; Lazic, D; Lawson, P D; Zou, D; Wisecarver, A L; Sumorok, K C; Klute, M; Lee, Y; 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Ferri, G; Saviano, G; Ferrini, M; Minutoli, S; Tosi, S; Lista, L; Passeggio, G; Breglio, G; Merola, M; Diemoz, M; Rahatlou, S; Baccaro, S; Bartoloni, A; Talamo, I G; Cipriani, M; Kim, J Y; Oh, G; Lim, J H; Lee, J; Mohamad idris, F B; Gani, A B; Cwiok, M; Doroba, K; Martins galinhas, B E; Kim, V; Krivshich, A; Vorobyev, A; Ivanov, Y; Tarakanov, V; Lobodenko, A; Obikhod, T; Isayev, O; Kurov, O; Leonidov, A; Lvova, N; Kirsanov, M; Suvorova, O; Karneyeu, A; Demidov, S; Konoplyannikov, A; Popov, V; Pakhlov, P; Vinogradov, S; Klemin, S; Blinov, V; Skovpen, I; Chatrchyan, S; Grigorian, N; Kayis topaksu, A; Sunar cerci, D; Hos, I; Guler, Y; Kiminsu, U; Serin, M; Deniz, M; Turan, I; Eryol, F; Pozdnyakov, A; Liu, Z; Doan, T H; Hanlon, J E; Mcbride, P L; Pal, I; Garren, L; Oleynik, G; Harris, R M; Bolla, G; Kowalkowski, J B; Evans, D E; Vaandering, E W; Patrick, J F; Rechenmacher, R; Prosser, A G; Messer, T A; Tiradani, A R; Rivera, R A; Jayatilaka, B A; Duarte, J M; Todri, A; Harr, R F; Richman, J D; Bhandari, R; Dordevic, M; Cirkovic, P; Mora herrera, C; Rosa lopes zachi, A; De paula carvalho, W; Kinnunen, R L A; Lehti, S T; Maeenpaeae, T H; Bloch, D; Chabert, E C; Rudolf, N G; Devroede, O; Skovpen, K; Lontkovskyi, D; De wolf, E A; Van mechelen, P; Van spilbeeck, A B E; Georgiev, L S; Novaes, S F; Costa, M A; Costa leal, B; Horisberger, R P; De la cruz, B; Willmott, C; Perez-calero yzquierdo, A M; Dejardin, M M; Mehta, A; Barbagli, G; Focardi, E; Bacchetta, N; Gasparini, U; Pantano, D; Sgaravatto, M; Ventura, S; Zotto, P; Candelori, A; Pozzobon, N; Boletti, A; Servoli, L; Postolache, V; Rossi, A; Ciangottini, D; Alunni solestizi, L; Maselli, S; Migliore, E; Amapane, N C; Lopez fernandez, R; Sanchez hernandez, A; Heredia de la cruz, I; Matveev, V; Kracikova, T; Shmatov, S; Vasilev, S; Kurenkov, A; Oleynik, D; Verkheev, A; Voytishin, N; Proskuryakov, A; Bogdanova, G; Petrova, E; Bagaturia, I; Tsamalaidze, Z; Zhao, Z; Arcaro, D J; Barberis, E; Wamorkar, T; Wang, B; Ralph, D K; Velasco, M M; Odell, N J; Sevova, S; Li, W; Merlo, J; Onel, Y; Mermerkaya, H; Moeller, A R; Haytmyradov, M; Dong, R; Bugg, W M; Ragghianti, G C; Delannoy sotomayor, A G; Thapa, K; Yagil, A; Gerosa, R A; Masciovecchio, M; Schmitz, E J; Kapustinsky, J S; Greene, S V; Zhang, L; Vlimant, J V; Mughal, A; Cury siqueira, S; Gershtein, Y; Arora, S R R; Lin, W X; Stickland, D P; Mc donald, K T; Pivarski, J M C; Lucchini, M T; Higginbotham, S L; Rosenfield, M; Long, O R; Johnson, K F; Adams, T; Susa, T; Rykaczewski, H; Ioannou, A; Ge, Y; Levin, A M; Li, J; Li, L; Bloom, K A; Monroy montanez, J A; Kunori, S; Wang, Z; Favart, D; Maltoni, F; Vidal marono, M; Delcourt, M; Markov, S I; Seez, C; Richards, A J; Ferguson, W; Chatziangelou, M; Karathanasis, G; Kontaxakis, P; Jones, J A; Strologas, J; Katsoulis, P; Dutt, S; Roy chowdhury, S; Bhardwaj, R; Purohit, A; Singh, B; Behera, P K; Sharma, A; Spagnolo, P; Tonelli, G E; Giannini, L; Poulios, S; Groote, J F; Untuc, B; Oztirpan, F O; Koseoglu, I; Luiggi lopez, E E; Hadley, N J; Shin, Y H; Safonov, A; Eusebi, R; Rose, A K; Overton, D A; Erbacher, R D; Funk, G N; Pilot, J R; Regnery, B J; Klimenko, S; Matchev, K; Gleyzer, S; Wang, J; Cadamuro, L; Sun, W M; Soffi, L; Lantz, S R; Wright, D; Cline, D; Cousins jr, R D; Erhan, S; Yang, X; Schnaible, C J; Dasgupta, A; Loveless, R; Bradley, D C; Monzat, D; Dodd, L M; Tikalsky, J L; Kapusta, J; Gilbert, W J; Lesko, Z J; Marinelli, N; Wayne, M R; Heering, A H; Galanti, M; Duh, Y; Roy, A; Arabgol, M; Hacker, T J; Salva, S; Petrov, V; Barychevski, V; Drobychev, G; Lobko, A; Gabusi, M; Fabris, L; Conte, E R E; Kasprowicz, G H; Kyberd, P; Cole, J E; Lopez, J M; Salazar gonzalez, C A; Benzon, A M; Pelagio, L; Walsh, M F; Postnov, A; Lelas, D; Vaitkus, J V; Jurciukonis, D; Sulmanas, B; Ahmad, A; Ahmed, W; Jalil, S H; Kahl, W E; Taylor, D R; Choi, Y I; Jeong, Y; Roy, T; Schoenenberger, M A; Khateri, P; Etesami, S M; Fiorini, E; Pullia, A; Magni, S; Gennai, S; Fiorendi, S; Zuolo, D; Sanabria arenas, J C; Florez bustos, C A; Holguin coral, A; Mendez, H; Srimanobhas, N; Jaikar, A H; Arteche gonzalez, F J; Call, K R; Vazquez valencia, E F; Calderon monroy, M A; Abdelmaguid, A; Mal, P K; Yuan, L; Lomidze, I; Prangishvili, I; Adamov, G; Dube, S S; Dugad, S; Mohanty, G B; Bhat, M A; Bheesette, S; Malawski, M L; Abou kors, D J

CMS is a general purpose proton-proton detector designed to run at the highest luminosity at the LHC. It is also well adapted for studies at the initially lower luminosities. The CMS Collaboration consists of over 1800 scientists and engineers from 151 institutes in 31 countries. The main design goals of CMS are: \\begin{enumerate} \\item a highly performant muon system, \\item the best possible electromagnetic calorimeter \\item high quality central tracking \\item hermetic calorimetry \\item a detector costing less than 475 MCHF. \\end{enumerate} All detector sub-systems have started construction. Engineering Design Reviews of parts of these sub-systems have been successfully carried-out. These are held prior to granting authorization for purchase. The schedule for the LHC machine and the experiments has been revised and CMS will be ready for first collisions now expected in April 2006. \\\\\\\\ ~~~~$\\bullet$ Magnet \\\\ The detector (see Figure) will be built around a long (13~m) and large bore ($\\phi$=5.9~m) high...

XML and Graphs for Modeling, Integration and Interoperability:a CMS Perspective

CERN Document Server

van Lingen, Frank

2004-01-01

This thesis reports on a designer's Ph.D. project called “XML and Graphs for Modeling, Integration and Interoperability: a CMS perspective”. The project has been performed at CERN, the European laboratory for particle physics, in collaboration with the Eindhoven University of Technology and the University of the West of England in Bristol. CMS (Compact Muon Solenoid) is a next-generation high energy physics experiment at CERN, which will start running in 2007. The complexity of such a detector used in the experiment and the autonomous groups that are part of the CMS experiment, result in disparate data sources (different in format, type and structure). Users need to access and exchange data located in multiple heterogeneous sources in a domain-specific manner and may want to access a simple unit of information without having to understand details of the underlying schema. Users want to access the same information from several different heterogeneous sources. It is neither desirable nor fea...

Implementation of On-Line Data Reduction Algorithms in the CMS Endcap Preshower Data Concentrator Card

CERN Document Server

Barney, David; Kokkas, Panagiotis; Manthos, Nikolaos; Reynaud, Serge; Sidiropoulos, Georgios; Vichoudis, Paschalis

2006-01-01

The CMS Endcap Preshower (ES) sub-detector comprises 4288 silicon sensors, each containing 32 strips. The data are transferred from the detector to the counting room via 1208 optical fibres running at 800Mbps. Each fibre carries data from 2, 3 or 4 sensors. For the readout of the Preshower, a VME-based system - the Endcap Preshower Data Concentrator Card (ES-DCC) is currently under development. The main objective of each readout board is to acquire on-detector data from up to 36 optical links, perform on-line data reduction (zero suppression) and pass the concentrated data to the CMS event builder. This document presents the conceptual design of the Reduction Algorithms as well as their implementation into the ES-DCC FPGAs. The algorithms implemented into the ES-DCC resulted in a reduction factor of ~20.

File list: Oth.NoD.20.DNA-RNA_hybrids.AllCell [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available Oth.NoD.20.DNA-RNA_hybrids.AllCell sacCer3 TFs and others DNA-RNA hybrids No descri...ption http://dbarchive.biosciencedbc.jp/kyushu-u/sacCer3/assembled/Oth.NoD.20.DNA-RNA_hybrids.AllCell.bed ...

Forward-central jet correlations in pp collisions at CMS

Energy Technology Data Exchange (ETDEWEB)

Ribeiro Cipriano, Pedro Miguel

2014-03-15

The azimuthal correlation between central and forward jets has been measured in proton-proton collisions at the LHC recorded with the CMS detector at a centre-of-mass energy of 7 TeV. Both jets were required to have a minimum transverse momentum of 35 GeV. The forward jet was reconstructed in the hadronic forward calorimeter within the pseudo-rapidity range 3.2< vertical stroke η vertical stroke < 4.7, while the central jet was limited to vertical stroke η vertical stroke < 2.8. The measurement is performed inclusively and also differentially for different separations in pseudo-rapidity, the largest separation allowed by the CMS detector being Δη=7.5 units. The analysis is carried out for inclusive dijet events which is then divided into two sub-samples. In one of these sub-samples, an additional jet with p{sub T}>20 GeV in the pseudo rapidity interval between the forward and the central jet is required, while in the second sub-sample events containing such jets are explicitly vetoed. Furthermore, observables describing additional jets outside of the pseudo-rapidity interval spanned by the dijet system are measured. Most of the results are found to be well described by DGLAP-based Monte Carlo event generators.

Circadian and diurnal variation of circulating immune complexes, complement-mediated solubilization, and the complement split product C3d in rheumatoid arthritis

DEFF Research Database (Denmark)

Petersen, Ivan; Baatrup, Gunnar; Brandslund, I

1986-01-01

Nine patients with active classical rheumatoid arthritis (ARA criteria) were studied with reference to circadian variation of immunological and clinical parameters. Complement-mediated solubilization (CMS) of immune complexes (IC) and the level of circulating IC were found to be inversely related...... with low CMS and increased IC levels in the morning, and vice versa in the afternoon. Bed rest and exercise did not influence these fluctuations. The C3d concentration in plasma was increased but showed no diurnal or circadian periodic fluctuations when the levels were corrected for fluctuations in plasma...... albumin concentration. Clinical assessment by means of pain score exhibited marked variations, with high scores in the morning, and lower in the daytime, whereas measurements of Ritchie's joint index showed no consistent pattern. The circadian variations in CMS, serum IC and clinical parameters indicate...

CMS endcap RPC gas gap production for upgrade

International Nuclear Information System (INIS)

Park, S K; Choi, S; Hong, B; Jeng, Y Gun; Kang, M; Lee, K S; Sim, K-S; Colaleo, A; Pugliese, G; Loddo, F; Calabria, C; Maggi, M; Verwillingen, P; Berzano, U; Carrillo, C; Aleksandrov, A; Genchev, V; Iaydjiev, P; Rodozov, M; Shopova, M

2012-01-01

The CMS experiment will install a RE4 layer of 144 new Resistive Plate Chambers (RPCs) on the existing york YE3 at both endcap regions to trigger high momentum muons from the proton-proton interaction. In this paper, we present the detailed procedures used in the production of new RPC gas gaps adopted in the CMS upgrade. Quality assurance is enforced as ways to maintain the same quality of RPC gas gaps as the existing 432 endcap RPC chambers that have been operational since the beginning of the LHC operation. (technical report)

CMS Tracker Alignment Performance Results 2016

CERN Document Server

CMS Collaboration

2017-01-01

The tracking system of the CMS detector provides excellent resolution for charged particle tracks and an efficient way of tagging jets. In order to reconstruct good quality tracks, the position and orientation of each silicon pixel and strip module needs to be determined with a precision of several micrometers. The presented alignment results are derived following a global (Millepede-II) and a local (HipPy) fit approach. The performance of the CMS tracker alignment in 2016 using cosmic-ray data and the complete set of proton-proton collision data recorded at 3.8 T magnetic field has been studied. The data-driven validation of the results are shown. The time-dependent movement of the pixel detector's large-scale structure is demonstrated.

Validation of software releases for CMS

International Nuclear Information System (INIS)

Gutsche, Oliver

2010-01-01

The CMS software stack currently consists of more than 2 Million lines of code developed by over 250 authors with a new version being released every week. CMS has setup a validation process for quality assurance which enables the developers to compare the performance of a release to previous releases and references. The validation process provides the developers with reconstructed datasets of real data and MC samples. The samples span the whole range of detector effects and important physics signatures to benchmark the performance of the software. They are used to investigate interdependency effects of all CMS software components and to find and fix bugs. The release validation process described here is an integral part of CMS software development and contributes significantly to ensure stable production and analysis. It represents a sizable contribution to the overall MC production of CMS. Its success emphasizes the importance of a streamlined release validation process for projects with a large code basis and significant number of developers and can function as a model for future projects.

42 CFR 438.724 - Notice to CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 4 2010-10-01 2010-10-01 false Notice to CMS. 438.724 Section 438.724 Public...) MEDICAL ASSISTANCE PROGRAMS MANAGED CARE Sanctions § 438.724 Notice to CMS. (a) The State must give the CMS Regional Office written notice whenever it imposes or lifts a sanction for one of the violations...

Interface for the Construction of the CMS Detector (IC''3MS); Interfaz para la Construccion de Camaras CMS (IC''3MS)

Energy Technology Data Exchange (ETDEWEB)

Ballador Ferreras, A.; Gonzalez Giralda, C. [Ciemat. Madrid (Spain)

2001-07-01

This Technical Report shows a computer System named: Interface for the Control of CMS Detector (IC''3MS), whose main objective is to provide a design and advice tool which can be used for the assembly of super layers for the Compacts Muon Solenoid. This computer application is divided up into three independent modules that maintain a proper connection between them. These modules correspond to the three principal actors that control the assembly we said before. These actors are the analysts, that determine the control routines, the engineers, that specify the control details and finally the workers who use the control routines. This application has been developed as a collaboration between the Experimental Physic of Particles; which belongs to the Fusion and Elementary particles department and the Special Project Group, belonging to the Information Technologies Department, both them from the CIEMAT (Author)

CMS Tracker Alignment Performance Results Summer 2016

CERN Document Server

CMS Collaboration

2016-01-01

The tracking system of the CMS detector provides excellent resolution for charged particle tracks and an efficient way of tagging jets. In order to reconstruct good quality tracks, the position and orientation of each silicon pixel and strip modules need to be determined with a precision of several micrometers. The performance of the CMS tracker alignment in 2016 using cosmic-ray data recorded at 0 T magnetic field and proton-proton collision data recorded at 3.8 T magnetic field has been studied. The data-driven validation of the results are presented. The time-dependent movement of the pixel detector's large-scale structure is demonstrated.

Grid Interoperation with ARC middleware for the CMS experiment

International Nuclear Information System (INIS)

Edelmann, Erik; Groenager, Michael; Johansson, Daniel; Kleist, Josva; Field, Laurence; Qing, Di; Frey, Jaime; Happonen, Kalle; Klem, Jukka; Koivumaeki, Jesper; Linden, Tomas; Pirinen, Antti

2010-01-01

The Compact Muon Solenoid (CMS) is one of the general purpose experiments at the CERN Large Hadron Collider (LHC). CMS computing relies on different grid infrastructures to provide computational and storage resources. The major grid middleware stacks used for CMS computing are gLite, Open Science Grid (OSG) and ARC (Advanced Resource Connector). Helsinki Institute of Physics (HIP) hosts one of the Tier-2 centers for CMS computing. CMS Tier-2 centers operate software systems for data transfers (PhEDEx), Monte Carlo production (ProdAgent) and data analysis (CRAB). In order to provide the Tier-2 services for CMS, HIP uses tools and components from both ARC and gLite grid middleware stacks. Interoperation between grid systems is a challenging problem and HIP uses two different solutions to provide the needed services. The first solution is based on gLite-ARC grid level interoperability. This allows to use ARC resources in CMS without modifying the CMS application software. The second solution is based on developing specific ARC plugins in CMS software.

Grid Interoperation with ARC middleware for the CMS experiment

Energy Technology Data Exchange (ETDEWEB)

Edelmann, Erik; Groenager, Michael; Johansson, Daniel; Kleist, Josva [Nordic DataGrid Facility, Kastruplundgade 22, 1., DK-2770 Kastrup (Denmark); Field, Laurence; Qing, Di [CERN, CH-1211 Geneve 23 (Switzerland); Frey, Jaime [University of Wisconsin-Madison, 1210 W. Dayton St., Madison, WI (United States); Happonen, Kalle; Klem, Jukka; Koivumaeki, Jesper; Linden, Tomas; Pirinen, Antti, E-mail: Jukka.Klem@cern.c [Helsinki Institute of Physics, PO Box 64, FIN-00014 University of Helsinki (Finland)

2010-04-01

The Compact Muon Solenoid (CMS) is one of the general purpose experiments at the CERN Large Hadron Collider (LHC). CMS computing relies on different grid infrastructures to provide computational and storage resources. The major grid middleware stacks used for CMS computing are gLite, Open Science Grid (OSG) and ARC (Advanced Resource Connector). Helsinki Institute of Physics (HIP) hosts one of the Tier-2 centers for CMS computing. CMS Tier-2 centers operate software systems for data transfers (PhEDEx), Monte Carlo production (ProdAgent) and data analysis (CRAB). In order to provide the Tier-2 services for CMS, HIP uses tools and components from both ARC and gLite grid middleware stacks. Interoperation between grid systems is a challenging problem and HIP uses two different solutions to provide the needed services. The first solution is based on gLite-ARC grid level interoperability. This allows to use ARC resources in CMS without modifying the CMS application software. The second solution is based on developing specific ARC plugins in CMS software.

Search for top quark partner in the CMS experiment

CERN Document Server

AUTHOR|(CDS)2084753; Collard, Caroline

La découverte en 2012 par les collaborations CMS et ATLAS d'un boson de Higgs avec une masse de $125~\\text{GeV}$ et ayant des propriétés compatibles avec celles prédites par le Modèle Standard renforce la nécessité de répondre au problème de hiérarchie. La supersymétrie propose une solution naturelle à ce problème, privilégiant un partenaire scalaire du quark top, le stop ($\\tilde{t}_1$), ayant une masse en dessous du TeV tandis que le plus léger des neutralinos ($\\tilde{\\chi}^0_1$), candidat pour la matière noire dans les modèles avec $R$-parité conservée, est attendu avec une masse de quelques centaines de GeV. Cette thèse se concentre sur la recherche de production directe de paires de stop se désintégrant suivant $\\tilde{t}_1 \\rightarrow t \\tilde{\\chi}^0_1$, ou $\\tilde{t}_1 \\rightarrow b \\tilde{\\chi}^\\pm_1$ avec $\\tilde{\\chi}^\\pm_1 \\rightarrow W^\\pm \\tilde{\\chi}^0_1$, en utilisant les données enregistrées par l'expérience CMS pendant...

Forward physics with CMS

CERN Document Server

Grothe, Monika

2008-01-01

Forward physics with CMS at the LHC covers a wide range of physics subjects, including very low-x_Bj QCD, underlying event and multiple interactions characteristics, gamma-mediated processes, shower development at the energy scale of primary cosmic ray interactions with the atmosphere, diffraction in the presence of a hard scale and even MSSM Higgs discovery in central exclusive production. Selected feasibility studies to illustrate the forward physics potential of CMS are presented.

Analysis of the 3d9ns (n = 5, 6), 3d95p, 3d94f and 3d84s4p configurations of five times ionized arsenic (As VI)

International Nuclear Information System (INIS)

Ryabtsev, A.N.; Gayasov, R.R.; Joshi, Y.N.; Van het Hof, G.J.

1993-01-01

The spectrum of arsenic was photographed in the 100-1250 A region on grazing and normal incidence spectrographs. The spectrum of As VI was extended. Seven out of eight levels of the 3d 9 5s and 6s configurations, 12 out of 12 levels of the 3d 9 5p configuration, 13 out of 20 levels of the 3d 9 4f configuration and 35 levels belonging to the 3d 9 4s4p configuration have been established. Least-Square-Fitted parametric calculations involving configuration interactions both in even and odd parity systems were carried out to adequately interpret the spectrum. One hundred and thirty-two additional lines were classified in the As VI spectrum. A new value of the ionization limit was obtained. Thus, the 3d 9 2 D 5/2 ground level in As VII lies 977500 cm -1 (121.17 eV) above the As VI ground state. (orig.)

Distributed Grid Experiences in CMS DC04

CERN Document Server

Fanfani, A; Grandi, C; Legrand, I; Suresh, S; Campana, S; Donno, F; Jank, W; Sinanis, N; Sciabà, A; García-Abia, P; Hernández, J; Ernst, M; Anzar, A; Fisk, I; Giacchetti, L; Graham, G; Heavey, A; Kaiser, J; Kuropatine, N; Perelmutov, T; Pordes, R; Ratnikova, N; Weigand, J; Wu, Y; Colling, D J; MacEvoy, B; Tallini, H; Wakefield, L; De Filippis, N; Donvito, G; Maggi, G; Bonacorsi, D; Dell'Agnello, L; Martelli, B; Biasotto, M; Fantinel, S; Corvo, M; Fanzago, F; Mazzucato, M; Tuura, L; Martin, T; Letts, J; Bockjoo, K; Prescott, C; Rodríguez, J; Zahn, A; Bradley, D

2005-01-01

In March-April 2004 the CMS experiment undertook a Data Challenge (DC04). During the previous 8 months CMS undertook a large simulated event production. The goal of the challenge was to run CMS reconstruction for sustained period at 25Hz in put rate, distribute the data to the CMS Tier-1 centers and analyze them at remote sites. Grid environments developed in Europe by the LHC Computing Grid (LCG) and in the US with Grid2003 were utilized to complete the aspects of the challenge. A description of the experiences, successes and lessons learned from both experiences with grid infrastructure is presented.

The CMS High Level Trigger System

CERN Document Server

Afaq, A; Bauer, G; Biery, K; Boyer, V; Branson, J; Brett, A; Cano, E; Carboni, A; Cheung, H; Ciganek, M; Cittolin, S; Dagenhart, W; Erhan, S; Gigi, D; Glege, F; Gómez-Reino, Robert; Gulmini, M; Gutiérrez-Mlot, E; Gutleber, J; Jacobs, C; Kim, J C; Klute, M; Kowalkowski, J; Lipeles, E; Lopez-Perez, Juan Antonio; Maron, G; Meijers, F; Meschi, E; Moser, R; Murray, S; Oh, A; Orsini, L; Paus, C; Petrucci, A; Pieri, M; Pollet, L; Rácz, A; Sakulin, H; Sani, M; Schieferdecker, P; Schwick, C; Sexton-Kennedy, E; Sumorok, K; Suzuki, I; Tsirigkas, D; Varela, J

2007-01-01

The CMS Data Acquisition (DAQ) System relies on a purely software driven High Level Trigger (HLT) to reduce the full Level-1 accept rate of 100 kHz to approximately 100 Hz for archiving and later offline analysis. The HLT operates on the full information of events assembled by an event builder collecting detector data from the CMS front-end systems. The HLT software consists of a sequence of reconstruction and filtering modules executed on a farm of O(1000) CPUs built from commodity hardware. This paper presents the architecture of the CMS HLT, which integrates the CMS reconstruction framework in the online environment. The mechanisms to configure, control, and monitor the Filter Farm and the procedures to validate the filtering code within the DAQ environment are described.

The CMS Data Analysis School Experience

Energy Technology Data Exchange (ETDEWEB)

De Filippis, N. [INFN, Bari; Bauerdick, L. [Fermilab; Chen, J. [Taiwan, Natl. Taiwan U.; Gallo, E. [DESY; Klima, B. [Fermilab; Malik, S. [Puerto Rico U., Mayaguez; Mulders, M. [CERN; Palla, F. [INFN, Pisa; Rolandi, G. [Pisa, Scuola Normale Superiore

2017-11-21

The CMS Data Analysis School is an official event organized by the CMS Collaboration to teach students and post-docs how to perform a physics analysis. The school is coordinated by the CMS schools committee and was first implemented at the LHC Physics Center at Fermilab in 2010. As part of the training, there are a number of “short” exercises on physics object reconstruction and identification, Monte Carlo simulation, and statistical analysis, which are followed by “long” exercises based on physics analyses. Some of the long exercises go beyond the current state of the art of the corresponding CMS analyses. This paper describes the goals of the school, the preparations for a school, the structure of the training, and student satisfaction with the experience as measured by surveys.

Experimental Investigations of 3-D-/4-D-CAP Modulation With Directly Modulated VCSELs

DEFF Research Database (Denmark)

Binti Othman, Maisara; Zhang, Xu; Deng, Lei

2012-01-01

correction limit of 2.8 × 10-3 for error-free reception is achieved after 20 km of SSMF transmission. Spectral efficiencies of 2.68 and 2.08 b/s/Hz are reported for 3-D-CAP and 4-D-CAP, respectively. We believe that multidimensional modulation formats represent an attractive solution for providing more......In this letter, we present experimental investigations of multidimensional multilevel carrierless amplitude phase (CAP) modulation with directly modulated vertical cavity surface-emitting lasers. The signals are transmitted over 20 km of standard single-mode fiber (SSMF). For multilevel 3-D...

Grid Interoperation with ARC Middleware for the CMS Experiment

CERN Document Server

Edelmann, Erik; Frey, Jaime; Gronager, Michael; Happonen, Kalle; Johansson, Daniel; Kleist, Josva; Klem, Jukka; Koivumaki, Jesper; Linden, Tomas; Pirinen, Antti; Qing, Di

2010-01-01

The Compact Muon Solenoid (CMS) is one of the general purpose experiments at the CERN Large Hadron Collider (LHC). CMS computing relies on different grid infrastructures to provide computational and storage resources. The major grid middleware stacks used for CMS computing are gLite, Open Science Grid (OSG) and ARC (Advanced Resource Connector). Helsinki Institute of Physics (HIP) hosts one of the Tier-2 centers for CMS computing. CMS Tier-2 centers operate software systems for data transfers (PhEDEx), Monte Carlo production (ProdAgent) and data analysis (CRAB). In order to provide the Tier-2 services for CMS, HIP uses tools and components from both ARC and gLite grid middleware stacks. Interoperation between grid systems is a challenging problem and HIP uses two different solutions to provide the needed services. The first solution is based on gLite-ARC grid level interoperability. This allows to use ARC resources in CMS without modifying the CMS application software. The second solution is based on developi...

CMS Data Analysis: Current Status and Future Strategy

CERN Document Server

Innocente, V

2003-01-01

We present the current status of CMS data analysis architecture and describe work on future Grid-based distributed analysis prototypes. CMS has two main software frameworks related to data analysis: COBRA, the main framework, and IGUANA, the interactive visualisation framework. Software using these frameworks is used today in the world-wide production and analysis of CMS data. We describe their overall design and present examples of their current use with emphasis on interactive analysis. CMS is currently developing remote analysis prototypes, including one based on Clarens, a Grid-enabled client-server tool. Use of the prototypes by CMS physicists will guide us in forming a Grid-enriched analysis strategy. The status of this work is presented, as is an outline of how we plan to leverage the power of our existing frameworks in the migration of CMS software to the Grid.

Tissue content of vitamin D₃ and 25-hydroxy vitamin D3 in minipigs after cutaneous synthesis, supplementation and deprivation of vitamin D₃

DEFF Research Database (Denmark)

Burild, Anders; Frandsen, Henrik Lauritz; Poulsen, Morten

2015-01-01

storages of vitamin D3 two studies were carried out in Göttingen minipigs. In study 1 one group of minipigs (n=2) was daily exposed to UV light corresponding to 10–20min of midday sun and another group (n=2) of pigs were fed up to 60μg vitamin D3/day corresponding to 3.7–4.4μg/kg body weight.Study 1......-hydroxy vitamin D3 in serum and skin- and subcutaneous adipose tissue biopsies were repeatedly monitored. Vitamin D3 and 25-hydroxy vitamin D3 were eliminated from the skin and the adipose tissue after UV-exposure was ceased. Supplementation of 13C-vitamin D3 did not seem to affect the decline...... demonstrated that daily UV-exposure of minipigs stimulated the cutaneous synthesis of vitamin D3 and resulted in increasing serum vitamin D3 and 25-hydroxy vitamin D3, but also carcasses containing vitamin D3 and 25-hydroxy vitamin D3. The vitamin D3 content in adipose tissue from the UV-exposed minipigs...

CMS launches new educational tools

CERN Document Server

Corinne Pralavorio

2014-01-01

On 5 and 11 November, almost 90 pupils from the Fermi scientific high school in Livorno, Italy, took part in two Masterclass sessions organised by CMS.   CMS Masterclass participants.  The pupils took over a hall at CERN for an afternoon to test a new software tool called CIMA (CMS Instrument for Masterclass Analysis) for the first time. The software simplifies the process of recording results and reduces the number of steps required to enter data. During the exercise, each group of pupils had to analyse about a hundred events from the LHC. For each event, the budding physicists determined whether what they saw was a candidate W boson, Z boson or Higgs boson, identified the decay mode and entered key data. At the end of the analysis, they used the results to reconstruct a mass diagram. CIMA was developed by a team of scientists from the University of Aachen, Germany, the University of Notre-Dame, United States, and CERN. CMS has also added yet another educational tool to its already l...

The CMS COLD BOX

CERN Multimedia

Brice, Maximilien

2015-01-01

The CMS detector is built around a large solenoid magnet. This takes the form of a cylindrical coil of superconducting cable that generates a field of 3.8 Tesla: about 100,000 times the magnetic field of the Earth. To run, this superconducting magnet needs to be cooled down to very low temperature with liquid helium. Providing this is the job of a compressor station and the so-called “cold box”.

The CMS Electronic Logbook

CERN Multimedia

Bukowiec, S; Beccati, B; Behrens, U; Biery, K; Branson, J; Cano, E; Cheung, H; Ciganek, M; Cittolin, S; Coarasa Perez, J A; Deldicque, C; Erhan, S; Gigi, D; Glege, F; Gomez-Reino, R; Hatton, D; Hwong, Y L; Loizides, C; Ma, F; Masetti, L; Meijers, F; Meschi, E; Meyer, A; Mommsen, R K; Moser, R; O’Dell, V; Orsini, L; Paus, C; Petrucci, A; Pieri, M; Racz, A; Raginel, O; Sakulin, H; Sani, M; Schieferdecker, P; Schwick, C; Shpakov, D; Simon, M; Sumorok, K; Sungho Yoon, A

2010-01-01

The CMS ELogbook (ELog) is a collaborative tool, which provides a platform to share and store information about various events or problems occurring in the Compact Muon Solenoid (CMS) experiment at CERN during operation. The ELog is based on a Model–View–Controller (MVC) software architectural pattern and uses an Oracle database to store messages and attachments. The ELog is developed as a pluggable web component in Oracle Portal in order to provide better management, monitoring and security.

Improving collaborative documentation in CMS

International Nuclear Information System (INIS)

Lassila-Perini, Kati; Salmi, Leena

2010-01-01

Complete and up-to-date documentation is essential for efficient data analysis in a large and complex collaboration like CMS. Good documentation reduces the time spent in problem solving for users and software developers. The scientists in our research environment do not necessarily have the interests or skills of professional technical writers. This results in inconsistencies in the documentation. To improve the quality, we have started a multidisciplinary project involving CMS user support and expertise in technical communication from the University of Turku, Finland. In this paper, we present possible approaches to study the usability of the documentation, for instance, usability tests conducted recently for the CMS software and computing user documentation.

CMS Triggers for the LHC Startup

CERN Document Server

Nhan Nguyen, Chi

2009-01-01

The LHC will collide proton beams at a bunch-crossing rate of 40 MHz. At the design luminosity of $10^{34}$ cm$^{-2}$s$^{-1}$ each crossing results in an average of about 20 inelastic pp events. The CMS trigger system is designed to reduce the input rate to about 100 Hz. This task is carried out in two steps, namely the Level-1 (L1) and the High-Level trigger (HLT). The L1 trigger is built of customized fast electronics and is designed to reduce the rate to 100 kHz. The HLT is implemented in a filter farm running on hundreds of CPUs and is designed to reduce the rate by another factor of ~1000. It combines the traditional L2 and L3 trigger components in a novel way and allows the coherent tuning of the HLT algorithms to accommodate multiple physics channels. We will discuss the strategies for optimizing triggers covering the experiment`s early physics program.

Exploiting Analytics Techniques in CMS Computing Monitoring

Energy Technology Data Exchange (ETDEWEB)

Bonacorsi, D. [Bologna U.; Kuznetsov, V. [Cornell U.; Magini, N. [Fermilab; Repečka, A. [Vilnius U.; Vaandering, E. [Fermilab

2017-11-22

The CMS experiment has collected an enormous volume of metadata about its computing operations in its monitoring systems, describing its experience in operating all of the CMS workflows on all of the Worldwide LHC Computing Grid Tiers. Data mining efforts into all these information have rarely been done, but are of crucial importance for a better understanding of how CMS did successful operations, and to reach an adequate and adaptive modelling of the CMS operations, in order to allow detailed optimizations and eventually a prediction of system behaviours. These data are now streamed into the CERN Hadoop data cluster for further analysis. Specific sets of information (e.g. data on how many replicas of datasets CMS wrote on disks at WLCG Tiers, data on which datasets were primarily requested for analysis, etc) were collected on Hadoop and processed with MapReduce applications profiting of the parallelization on the Hadoop cluster. We present the implementation of new monitoring applications on Hadoop, and discuss the new possibilities in CMS computing monitoring introduced with the ability to quickly process big data sets from mulltiple sources, looking forward to a predictive modeling of the system.

Towards higher reliability of CMS computing facilities

International Nuclear Information System (INIS)

Bagliesi, G; Bloom, K; Brew, C; Flix, J; Kreuzer, P; Sciabà, A

2012-01-01

The CMS experiment has adopted a computing system where resources are distributed worldwide in more than 50 sites. The operation of the system requires a stable and reliable behaviour of the underlying infrastructure. CMS has established procedures to extensively test all relevant aspects of a site and their capability to sustain the various CMS computing workflows at the required scale. The Site Readiness monitoring infrastructure has been instrumental in understanding how the system as a whole was improving towards LHC operations, measuring the reliability of sites when running CMS activities, and providing sites with the information they need to troubleshoot any problem. This contribution reviews the complete automation of the Site Readiness program, with the description of monitoring tools and their inclusion into the Site Status Board (SSB), the performance checks, the use of tools like HammerCloud, and the impact in improving the overall reliability of the Grid from the point of view of the CMS computing system. These results are used by CMS to select good sites to conduct workflows, in order to maximize workflows efficiencies. The performance against these tests seen at the sites during the first years of LHC running is as well reviewed.

Large-scale production of PWO scintillation elements for CMS ECAL

International Nuclear Information System (INIS)

Annenkov, A.; Auffray, E.; Drobychev, G.; Korzhik, M.; Kostylev, V.; Kovalev, O.; Lecoq, P.; Ligoun, V.; Missevitch, O.; Zouevski, R.

2005-01-01

JSC Bogoroditsk Technical Chemical Plant, BTCP, has produced up to date more than 20,000 lead tungstate scintillation elements for the electromagnetic calorimeter of CMS Collaboration. Here we report on the status of the crystal production and results of the quality insurance program, which is performed by the Collaboration in cooperation with BTCP to keep crystal properties within specifications

Continuous EB welding of the reinforcement of the CMS conductor

CERN Document Server

Folch, R; Campi, D; Christin, R; Creton, J P; Curé, B; Hervé, A; Horváth, I L; Neuenschwander, J; Riboni, P; Sequeira-Lopes-Tavares, S; Sgobba, Stefano

2002-01-01

The Compact Muon Solenoid (CMS) is one of the general-purpose detectors to be provided for the LHC project at CERN. The design field of the CMS superconducting magnet is 4 T, the magnetic length is 12.5 m and the free bore is 6 m. In order to withstand the electro-mechanical forces during the operation of the CMS magnet, the superconducting cable embedded in a 99.998% pure aluminum matrix is reinforced with two sections of aluminum alloy EN AW-6082 assembled by continuous Electron Beam Welding (EBW). A dedicated production line has been designed by Techmeta, a leading company in the field of EBW. The production line has a total length of 70 m. Non-stop welding of each of the 20 lengths of 2.5 km, required to build the coil, will last 22 hours. EBW is the most critical process involved in the production line. The main advantage of the EBW process is to minimize the Heat Affected Zone; this is particularly important for avoiding damage to the superconducting cable located only 4.7 mm from the welded joints. Two...

SUSY searches in early CMS data

International Nuclear Information System (INIS)

Tricomi, A

2008-01-01

In the first year of data taking at LHC, the CMS experiment expects to collect about 1 fb -1 of data, which make possible the first searches for new phenomena. All such searches require however the measurement of the SM background and a detailed understanding of the detector performance, reconstruction algorithms and triggering. The CMS efforts are hence addressed to designing a realistic analysis plan in preparation to the data taking. In this paper, the CMS perspectives and analysis strategies for Supersymmetry (SUSY) discovery with early data are presented

File list: NoD.Emb.20.AllAg.Mitotic_cycle_7-9 [Chip-atlas[Archive

Lifescience Database Archive (English)

Full Text Available NoD.Emb.20.AllAg.Mitotic_cycle_7-9 dm3 No description Embryo Mitotic cycle 7-9 http...://dbarchive.biosciencedbc.jp/kyushu-u/dm3/assembled/NoD.Emb.20.AllAg.Mitotic_cycle_7-9.bed ...

Interface for the Construction of the CMS Detector (IC''3MS)

International Nuclear Information System (INIS)

Bailador Ferreras, A.; Gonzalez Giralda, C.

2001-01-01

This Technical Report shows a computer System named: Interface for the Control of CMS Detector (IC''3MS), whose main objective is to provide a design and advice tool which can be used for the assembly of super layers for the Compacts Muon Solenoid. This computer application is divided up into three independent modules that maintain a proper connection between them. These modules correspond to the three principal actors that control the assembly we said before. These actors are the analysts, that determine the control routines, the engineers, that specify the control details and finally the workers who use the control routines. This application has been developed as a collaboration between the Experimental Physic of Particles; which belongs to the Fusion and Elementary particles department and the Special Project Group, belonging to the Information Technologies Department, both them from the CIEMAT (Author)

Set of CMS posters in Spanish

CERN Multimedia

Lapka, Marzena; Rao, Achintya

2014-01-01

14 A0 posters in English to be printed locally or displayed online. Purpose: science fairs, exhibitions, preparatory material for the CMS virtual visits, etc. Themes: CMS detector, sub-detectors, construction, lowering and installation, collaboration and physics. Available in many languages.

Set of CMS posters in Greek

CERN Multimedia

Lapka, Marzena; Petrilli, Achille

2015-01-01

14 A0 posters in English to be printed locally or displayed online. Purpose: science fairs, exhibitions, preparatory material for the CMS virtual visits, etc. Themes: CMS detector, sub-detectors, construction, lowering and installation, collaboration and physics. Available in many languages.

Set of CMS posters (multiple languages)

CERN Multimedia

Lapka, Marzena; Rao, Achintya

2014-01-01

14 A0 posters in English to be printed locally or displayed online. Purpose: science fairs, exhibitions, preparatory material for the CMS virtual visits, etc. Themes: CMS detector, sub-detectors, construction, lowering and installation, collaboration and physics. Available in many languages.

Towards deconstruction of the type D(2,0) theory

International Nuclear Information System (INIS)

Bourget, Antoine; Rodriguez-Gomez, Diego; Pini, Alessandro

2017-10-01

We propose a four-dimensional supersymmetric theory that deconstructs, in a particular limit, the six-dimensional (2,0) theory of type D k . This 4d theory is defined by a necklace quiver with alternating gauge nodes O(2k) and Sp(k). We test this proposal by comparing the 6d half-BPS index to the Higgs branch Hilbert series of the 4d theory. In the process, we overcome several technical difficulties, such as Hilbert series calculations for non-complete intersections, and the choice of O versus SO gauge groups. Consistently, the result matches the Coulomb branch formula for the mirror theory upon reduction to 3d.

3s--3p, 3p--3d, and 3d--4f transitions of sodiumlike ions

International Nuclear Information System (INIS)

Reader, J.; Kaufman, V.; Sugar, J.; Olof Ekberg, J.; Feldman, U.; Brown, C.M.; Seely, J.F.; Rowan, W.L.

1987-01-01

New measurements have been made for wavelengths of the 3s--3p, 3p--3d, and 3d--4f transitions of the sodiumlike ions Cu/sup 18+/, Zn/sup 19+/, Ga/sup 20+/, Ge/sup 21+/, As/sup 22+/, Se/sup 23+/, Br/sup 24+/, Kr/sup 25+/, Y/sup 28+/, Zr/sup 29+/, Nb/sup 30+/, Mo/sup 31+/, Ru/sup 33+/, Rh/sup 34+/, Pd/sup 35+/, Ag/sup 36+/, and Sn/sup 39+/. The measurements were made by photographing laser-produced plasmas and tokamak plasmas with grazing-incidence spectrographs. The energies of the transitions were also calculated with Dirac--Fock computer codes. By fitting the differences between the observed and calculated wave numbers to simple formulas, least-squares-fitted wavelengths for all sodiumlike ions from Ar 7+ to Xe/sup 43+/ were determined. The estimated uncertainty of the fitted wavelengths is +- 0.007 A, which makes them useful as reference values. The wavelengths range from 9 to 713 A

CMS results on collectivity in PbPb collisions at $\\sqrt{s_{NN}}$ = 2.76 and 5.02~TeV

CERN Document Server

Milosevic, Jovan

2017-01-01

Nonlinear response coefficients of higher-order $v_{n}$ anisotropy harmonics for charged particles, as a function of transverse momentum ($p_{\\mathrm{T}}$) and collision centrality, are measured in PbPb collisions at $\\sqrt{s_{NN}}$ = 2.76 and 5.02~TeV. The nonlinear response coefficients are obtained using $v_{n}$ harmonics measured with respect to their own plane and the mixed harmonics. Using a fine splitting between $v_{2}\\{4\\}$ and $v_{2}\\{6\\}$ cumulants, the centrality dependence of the elliptic flow skewness is measured at 5.02 TeV PbPb collisions. The CMS also measured the $v_{2}$ and $v_{3}$ anisotropy harmonics of charged particles and prompt $D^{0}$ mesons at $\\lvert y\\rvert \\le$ 1 as a function of $p_{\\mathrm{T}}$ and centrality in PbPb data at $\\sqrt{s_{NN}}$ = 5.02~TeV collected with the CMS detector. Prompt $D^{0}$ mesons, formed from the $c$ quarks produced via initial hard scatterings, are separated up to a high extent from nonprompt $D^{0}$ mesons emerged from decays of b hadrons. The result...

Comparative evaluation of HD 2D/3D laparoscopic monitors and benchmarking to a theoretically ideal 3D pseudodisplay: even well-experienced laparoscopists perform better with 3D.

Science.gov (United States)

Wilhelm, D; Reiser, S; Kohn, N; Witte, M; Leiner, U; Mühlbach, L; Ruschin, D; Reiner, W; Feussner, H

2014-08-01

Though theoretically superior to standard 2D visualization, 3D video systems have not yet achieved a breakthrough in laparoscopy. The latest 3D monitors, including autostereoscopic displays and high-definition (HD) resolution, are designed to overcome the existing limitations. We performed a randomized study on 48 individuals with different experience levels in laparoscopy. Three different 3D displays (glasses-based 3D monitor, autostereoscopic display, and a mirror-based theoretically ideal 3D display) were compared to a 2D HD display by assessing multiple performance and mental workload parameters and rating the subjects during a laparoscopic suturing task. Electromagnetic tracking provided information on the instruments' pathlength, movement velocity, and economy. The usability, the perception of visual discomfort, and the quality of image transmission of each monitor were subjectively rated. Almost all performance parameters were superior with the conventional glasses-based 3D display compared to the 2D display and the autostereoscopic display, but were often significantly exceeded by the mirror-based 3D display. Subjects performed a task faster and with greater precision when visualization was achieved with the 3D and the mirror-based display. Instrument pathlength was shortened by improved depth perception. Workload parameters (NASA TLX) did not show significant differences. Test persons complained of impaired vision while using the autostereoscopic monitor. The 3D and 2D displays were rated user-friendly and applicable in daily work. Experienced and inexperienced laparoscopists profited equally from using a 3D display, with an improvement in task performance about 20%. Novel 3D displays improve laparoscopic interventions as a result of faster performance and higher precision without causing a higher mental workload. Therefore, they have the potential to significantly impact the further development of minimally invasive surgery. However, as shown by the

Deployment of the CMS software on the WLCG Grid

International Nuclear Information System (INIS)

Behrenhoff, W; Wissing, C; Kim, B; Blyweert, S; D'Hondt, J; Maes, J; Maes, M; Mulders, P Van; Villella, I; Vanelderen, L

2011-01-01

The CMS Experiment is taking high energy collision data at CERN. The computing infrastructure used to analyse the data is distributed round the world in a tiered structure. In order to use the 7 Tier-1 sites, the 50 Tier-2 sites and a still growing number of about 30 Tier-3 sites, the CMS software has to be available at those sites. Except for a very few sites the deployment and the removal of CMS software is managed centrally. Since the deployment team has no local accounts at the remote sites all installation jobs have to be sent via Grid jobs. Via a VOMS role the job has a high priority in the batch system and gains write privileges to the software area. Due to the lack of interactive access the installation jobs must be very robust against possible failures, in order not to leave a broken software installation. The CMS software is packaged in RPMs that are installed in the software area independent of the host OS. The apt-get tool is used to resolve package dependencies. This paper reports about the recent deployment experiences and the achieved performance.

The Latest from CMS

CERN Multimedia

2009-01-01

CMS is on track to be ready for physics one month in advance of the LHC restart. The final installations are being completed and tests are being run to ensure that the experiment is as well prepared as possible to exploit sustained LHC operation throughout 2010. Physics week in Bologna, Italy, was a valuable time for CMS collaborators to discuss preparations for numerous physics analyses, as well as the performance of the detector during the recent data-taking period with cosmics (CRAFT 09). During this five-week exercise, more than 300 million cosmic events were recorded with the magnetic field on. This large data-set is being used to further improve the sub-detector alignment, calibration and performance whilst awaiting p-p collisions. Meanwhile, in the experimental cavern, Wolfram Zeuner, Deputy Technical Coordinator of CMS, reports "We are now very nearly closed up again. We are just doing the final clean-up work and are ready t...

CMS outreach event to close LS1

CERN Multimedia

Achintya Rao

2015-01-01

CMS opened its doors to about 700 students from schools near CERN, who visited the detector on 16 and 17 February during the last major CMS outreach event of LS1.   Pellentesque sapien mi, pharetra vitae, auctor eu, congue sed, turpis. Enthusiastic CMS guides spent a day and a half showing the equally enthusiastic visitors, aged 10 to 18, the beauty of CMS and particle physics. The recently installed wheelchair lift was called into action and enabled a visitor who arrived on crutches to access the detector cavern unimpeded.  The CMS collaboration had previously devoted a day to school visits after the successful “Neighbourhood Days” in May 2014 and, encouraged by the turnout, decided to extend an invitation to local schools once again. The complement of nearly 40 guides and crowd marshals was aided by a support team that coordinated the transportation of the young guests and received them at Point 5, where a dedicated safety team including first-aiders, security...

CMS Centres Worldwide - a New Collaborative Infrastructure

CERN Document Server

Taylor, Lucas

2011-01-01

Webcasts, and generic Web tools such as CMS-TV for broadcasting live monitoring and outreach information. Being Web-based and experiment-independent, these systems could easily be extended to other organizations. We describe the experiences of using CMS Centres Worldwide in the CMS data-taking operations as well as for major media events with several hundred TV channels, radio stations, and many more press journalists simultaneously around the world.

Virtual data in CMS production

International Nuclear Information System (INIS)

Arbree, A. et al.

2004-01-01

Initial applications of the GriPhyN Chimera Virtual Data System have been performed within the context of CMS Production of Monte Carlo Simulated Data. The GriPhyN Chimera system consists of four primary components: (1) a Virtual Data Language, which is used to describe virtual data products, (2) a Virtual Data Catalog, which is used to store virtual data entries, (3) an Abstract Planner, which resolves all dependencies of a particular virtual data product and forms a location and existence independent plan, (4) a Concrete Planner, which maps an abstract, logical plan onto concrete, physical grid resources accounting for staging in/out files and publishing results to a replica location service. A CMS Workflow Planner, MCRunJob, is used to generate virtual data products using the Virtual Data Language. Subsequently, a prototype workflow manager, known as WorkRunner, is used to schedule the instantiation of virtual data products across a grid

Virtual Data in CMS Production

CERN Document Server

Arbree, A; Bourilkov, D; Cavanaugh, R J; Graham, G; Katageri, S; Rodríguez, J; Voeckler, J; Wilde, M

2003-01-01

Initial applications of the GriPhyN Chimera Virtual Data System have been performed within the context of CMS Production of Monte Carlo Simulated Data. The GriPhyN Chimera system consists of four primary components: 1) a Virtual Data Language, which is used to describe virtual data products, 2) a Virtual Data Catalog, which is used to store virtual data entries, 3) an Abstract Planner, which resolves all dependencies of a particular virtual data product and forms a location and existence independent plan, 4) a Concrete Planner, which maps an abstract, logical plan onto concrete, physical grid resources accounting for staging in/out files and publishing results to a replica location service. A CMS Workflow Planner, MCRunJob, is used to generate virtual data products using the Virtual Data Language. Subsequently, a prototype workflow manager, known as WorkRunner, is used to schedule the instantiation of virtual data products across a grid.

Predicting dataset popularity for the CMS experiment

CERN Document Server

INSPIRE-00005122; Li, Ting; Giommi, Luca; Bonacorsi, Daniele; Wildish, Tony

2016-01-01

The CMS experiment at the LHC accelerator at CERN relies on its computing infrastructure to stay at the frontier of High Energy Physics, searching for new phenomena and making discoveries. Even though computing plays a significant role in physics analysis we rarely use its data to predict the system behavior itself. A basic information about computing resources, user activities and site utilization can be really useful for improving the throughput of the system and its management. In this paper, we discuss a first CMS analysis of dataset popularity based on CMS meta-data which can be used as a model for dynamic data placement and provide the foundation of data-driven approach for the CMS computing infrastructure.

Predicting dataset popularity for the CMS experiment

International Nuclear Information System (INIS)

Kuznetsov, V.; Li, T.; Giommi, L.; Bonacorsi, D.; Wildish, T.

2016-01-01

The CMS experiment at the LHC accelerator at CERN relies on its computing infrastructure to stay at the frontier of High Energy Physics, searching for new phenomena and making discoveries. Even though computing plays a significant role in physics analysis we rarely use its data to predict the system behavior itself. A basic information about computing resources, user activities and site utilization can be really useful for improving the throughput of the system and its management. In this paper, we discuss a first CMS analysis of dataset popularity based on CMS meta-data which can be used as a model for dynamic data placement and provide the foundation of data-driven approach for the CMS computing infrastructure. (paper)

The CMS Electromagnetic Calorimeter: Construction, Commissioning and Calibration

CERN Document Server

Orimoto, Toyoko

2009-01-01

The Compact Muon Solenoid (CMS) detector at the Large Hadron Colider (LHC) is ready for first collisions. The Electromagnetic Calorimeter (ECAL) of CMS, a high resolution detector comprised of nearly 76000 lead tungstate crystals, will play a crucial role in the coming physics searches undertaken by CMS. The design and performance of the CMS ECAL with test beams, cosmic rays, and first single beam data will be presented. In addition, the status of the calorimeter and plans for calibration with first collisions will be discussed.

Use of DAGMan in CRAB3 to Improve the Splitting of CMS User Jobs

Energy Technology Data Exchange (ETDEWEB)

Wolf, M. [Notre Dame U.; Mascheroni, M. [Fermilab; Woodard, A. [Notre Dame U.; Belforte, S. [INFN, Trieste; Bockelman, B. [Nebraska U.; Hernandez, J. M. [Madrid, CIEMAT; Vaandering, E. [Fermilab

2017-11-22

CRAB3 is a workload management tool used by CMS physicists to analyze data acquired by the Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC). Research in high energy physics often requires the analysis of large collections of files, referred to as datasets. The task is divided into jobs that are distributed among a large collection of worker nodes throughout the Worldwide LHC Computing Grid (WLCG). Splitting a large analysis task into optimally sized jobs is critical to efficient use of distributed computing resources. Jobs that are too big will have excessive runtimes and will not distribute the work across all of the available nodes. However, splitting the project into a large number of very small jobs is also inefficient, as each job creates additional overhead which increases load on infrastructure resources. Currently this splitting is done manually, using parameters provided by the user. However the resources needed for each job are difficult to predict because of frequent variations in the performance of the user code and the content of the input dataset. As a result, dividing a task into jobs by hand is difficult and often suboptimal. In this work we present a new feature called “automatic splitting” which removes the need for users to manually specify job splitting parameters. We discuss how HTCondor DAGMan can be used to build dynamic Directed Acyclic Graphs (DAGs) to optimize the performance of large CMS analysis jobs on the Grid. We use DAGMan to dynamically generate interconnected DAGs that estimate the processing time the user code will require to analyze each event. This is used to calculate an estimate of the total processing time per job, and a set of analysis jobs are run using this estimate as a specified time limit. Some jobs may not finish within the alloted time; they are terminated at the time limit, and the unfinished data is regrouped into smaller jobs and resubmitted.

Use of DAGMan in CRAB3 to improve the splitting of CMS user jobs

Science.gov (United States)

Wolf, M.; Mascheroni, M.; Woodard, A.; Belforte, S.; Bockelman, B.; Hernandez, J. M.; Vaandering, E.

2017-10-01

CRAB3 is a workload management tool used by CMS physicists to analyze data acquired by the Compact Muon Solenoid (CMS) detector at the CERN Large Hadron Collider (LHC). Research in high energy physics often requires the analysis of large collections of files, referred to as datasets. The task is divided into jobs that are distributed among a large collection of worker nodes throughout the Worldwide LHC Computing Grid (WLCG). Splitting a large analysis task into optimally sized jobs is critical to efficient use of distributed computing resources. Jobs that are too big will have excessive runtimes and will not distribute the work across all of the available nodes. However, splitting the project into a large number of very small jobs is also inefficient, as each job creates additional overhead which increases load on infrastructure resources. Currently this splitting is done manually, using parameters provided by the user. However the resources needed for each job are difficult to predict because of frequent variations in the performance of the user code and the content of the input dataset. As a result, dividing a task into jobs by hand is difficult and often suboptimal. In this work we present a new feature called “automatic splitting” which removes the need for users to manually specify job splitting parameters. We discuss how HTCondor DAGMan can be used to build dynamic Directed Acyclic Graphs (DAGs) to optimize the performance of large CMS analysis jobs on the Grid. We use DAGMan to dynamically generate interconnected DAGs that estimate the processing time the user code will require to analyze each event. This is used to calculate an estimate of the total processing time per job, and a set of analysis jobs are run using this estimate as a specified time limit. Some jobs may not finish within the alloted time; they are terminated at the time limit, and the unfinished data is regrouped into smaller jobs and resubmitted.

The CMS CERN Analysis Facility (CAF)

Energy Technology Data Exchange (ETDEWEB)

Buchmueller, O [Imperial College (United Kingdom); Bonacorsi, D [Universita and INFN, Bologna (Italy); Fanzago, F [Universita and INFN, Padova (Italy); Gowdy, S; Malgeri, L; Panzer-Steindel, B; Schwickerath, U; Spiga, D; Toebbicke, Rainer [Conseil Europeen Recherche Nucl. (CERN) Switzerland (Switzerland); Kreuzer, P [Rheinisch-Westfaelische Tech. Hoch. (RWTH) (Germany); Mankel, R [Deutsches Elektronen-Synchrotron (DESY) (Germany); Metson, S [University of Bristol (United Kingdom); Sanches, J Afonso; Teodoro, D, E-mail: Peter.Kreuzer@cern.c [Universidade do Estado do Rio De Janeiro (UERJ) (Brazil)

2010-04-01

The CMS CERN Analysis Facility (CAF) was primarily designed to host a large variety of latency-critical workflows. These break down into alignment and calibration, detector commissioning and diagnosis, and high-interest physics analysis requiring fast-turnaround. In addition to the low latency requirement on the batch farm, another mandatory condition is the efficient access to the RAW detector data stored at the CERN Tier-0 facility. The CMS CAF also foresees resources for interactive login by a large number of CMS collaborators located at CERN, as an entry point for their day-by-day analysis. These resources will run on a separate partition in order to protect the high-priority use-cases described above. While the CMS CAF represents only a modest fraction of the overall CMS resources on the WLCG GRID, an appropriately sized user-support service needs to be provided. We will describe the building, commissioning and operation of the CMS CAF during the year 2008. The facility was heavily and routinely used by almost 250 users during multiple commissioning and data challenge periods. It reached a CPU capacity of 1.4MSI2K and a disk capacity at the Peta byte scale. In particular, we will focus on the performances in terms of networking, disk access and job efficiency and extrapolate prospects for the upcoming LHC first year data taking. We will also present the experience gained and the limitations observed in operating such a large facility, in which well controlled workflows are combined with more chaotic type analysis by a large number of physicists.

The CMS CERN Analysis Facility (CAF)

International Nuclear Information System (INIS)

Buchmueller, O; Bonacorsi, D; Fanzago, F; Gowdy, S; Malgeri, L; Panzer-Steindel, B; Schwickerath, U; Spiga, D; Toebbicke, Rainer; Kreuzer, P; Mankel, R; Metson, S; Sanches, J Afonso; Teodoro, D

2010-01-01

The CMS CERN Analysis Facility (CAF) was primarily designed to host a large variety of latency-critical workflows. These break down into alignment and calibration, detector commissioning and diagnosis, and high-interest physics analysis requiring fast-turnaround. In addition to the low latency requirement on the batch farm, another mandatory condition is the efficient access to the RAW detector data stored at the CERN Tier-0 facility. The CMS CAF also foresees resources for interactive login by a large number of CMS collaborators located at CERN, as an entry point for their day-by-day analysis. These resources will run on a separate partition in order to protect the high-priority use-cases described above. While the CMS CAF represents only a modest fraction of the overall CMS resources on the WLCG GRID, an appropriately sized user-support service needs to be provided. We will describe the building, commissioning and operation of the CMS CAF during the year 2008. The facility was heavily and routinely used by almost 250 users during multiple commissioning and data challenge periods. It reached a CPU capacity of 1.4MSI2K and a disk capacity at the Peta byte scale. In particular, we will focus on the performances in terms of networking, disk access and job efficiency and extrapolate prospects for the upcoming LHC first year data taking. We will also present the experience gained and the limitations observed in operating such a large facility, in which well controlled workflows are combined with more chaotic type analysis by a large number of physicists.

The CMS DBS query language

International Nuclear Information System (INIS)

Kuznetsov, Valentin; Riley, Daniel; Afaq, Anzar; Sekhri, Vijay; Guo Yuyi; Lueking, Lee

2010-01-01

The CMS experiment has implemented a flexible and powerful system enabling users to find data within the CMS physics data catalog. The Dataset Bookkeeping Service (DBS) comprises a database and the services used to store and access metadata related to CMS physics data. To this, we have added a generalized query system in addition to the existing web and programmatic interfaces to the DBS. This query system is based on a query language that hides the complexity of the underlying database structure by discovering the join conditions between database tables. This provides a way of querying the system that is simple and straightforward for CMS data managers and physicists to use without requiring knowledge of the database tables or keys. The DBS Query Language uses the ANTLR tool to build the input query parser and tokenizer, followed by a query builder that uses a graph representation of the DBS schema to construct the SQL query sent to underlying database. We will describe the design of the query system, provide details of the language components and overview of how this component fits into the overall data discovery system architecture.

Expression of the nuclear gene TaF(A)d is under mitochondrial retrograde regulation in anthers of male sterile wheat plants with timopheevii cytoplasm.

Science.gov (United States)

Xu, Pei; Yang, Yuwen; Zhang, Zhengzhi; Chen, Weihua; Zhang, Caiqin; Zhang, Lixia; Zou, Sixiang; Ma, Zhengqiang

2008-01-01

Alterations of mitochondrial-encoded subunits of the F(o)F(1)-ATP synthase are frequently associated with cytoplasmic male sterility (CMS) in plants; however, little is known about the relationship of the nuclear encoded subunits of this enzyme with CMS. In the present study, the full cDNA of the gene TaF(A)d that encodes the putative F(A)d subunit of the F(o)F(1)-ATP synthase was isolated from the wheat (Triticum aestivum) fertility restorer '2114' for timopheevii cytoplasm-based CMS. The deduced 238 amino acid polypeptide is highly similar to its counterparts in dicots and other monocots but has low homology to its mammalian equivalents. TaF(A)d is a single copy gene in wheat and maps to the short arm of the group 6 chromosomes. Transient expression of the TaF(A)d-GFP fusion in onion epidermal cells demonstrated TaF(A)d's mitochondrial location. TaF(A)d was expressed abundantly in stem, leaf, anther, and ovary tissues of 2114. Nevertheless, its expression was repressed in anthers of CMS plants with timopheevii cytoplasm. Genic male sterility did not affect its expression in anthers. The expression of the nuclear gene encoding the 20 kDa subunit of F(o) was down-regulated in a manner similar to TaF(A)d in the T-CMS anthers while that of genes encoding the 6 kDa subunit of F(o) and the gamma subunit of F(1) was unaffected. These observations implied that TaF(A)d is under mitochondrial retrograde regulation in the anthers of CMS plants with timopheevii cytoplasm.

42 CFR 460.18 - CMS evaluation of applications.

Science.gov (United States)

2010-10-01

... 42 Public Health 4 2010-10-01 2010-10-01 false CMS evaluation of applications. 460.18 Section 460... ELDERLY (PACE) PACE Organization Application and Waiver Process § 460.18 CMS evaluation of applications. CMS evaluates an application for approval as a PACE organization on the basis of the following...

Comparison of 3D TOF-MRA and 3D CE-MRA at 3 T for imaging of intracranial aneurysms

International Nuclear Information System (INIS)

Cirillo, Mario; Scomazzoni, Francesco; Cirillo, Luigi; Cadioli, Marcello; Simionato, Franco; Iadanza, Antonella; Kirchin, Miles; Righi, Claudio; Anzalone, Nicoletta

2013-01-01

Purpose: To compare 3 T elliptical-centric CE MRA with 3 T TOF MRA for the detection and characterization of unruptured intracranial aneurysms (UIAs), by using digital subtracted angiography (DSA) as reference. Materials and methods: Twenty-nine patients (12 male, 17 female; mean age: 62 years) with 41 aneurysms (34 saccular, 7 fusiform; mean diameter: 8.85 mm [range 2.0–26.4 mm]) were evaluated with MRA at 3 T each underwent 3D TOF-MRA examination without contrast and then a 3D contrast-enhanced (CE-MRA) examination with 0.1 mmol/kg bodyweight gadobenate dimeglumine and k-space elliptic mapping (Contrast ENhanced Timing Robust Angiography [CENTRA]). Both TOF and CE-MRA images were used to evaluate morphologic features that impact the risk of rupture and the selection of a treatment. Almost half (20/41) of UIAs were located in the internal carotid artery, 7 in the anterior communicating artery, 9 in the middle cerebral artery and 4 in the vertebro-basilar arterial system. All patients also underwent DSA before or after the MR examination. Results: The CE-MRA results were in all cases consistent with the DSA dataset. No differences were noted between 3D TOF-MRA and CE-MRA concerning the detection and location of the 41 aneurysms or visualization of the parental artery. Differences were apparent concerning the visualization of morphologic features, especially for large aneurysms (>13 mm). An irregular sac shape was demonstrated for 21 aneurysms on CE-MRA but only 13/21 aneurysms on 3D TOF-MRA. Likewise, CE-MRA permitted visualization of an aneurismal neck and calculation of the sac/neck ratio for all 34 aneurysms with a neck demonstrated at DSA. Conversely, a neck was visible for only 24/34 aneurysms at 3D TOF-MRA. 3D CE-MRA detected 15 aneurysms with branches originating from the sac and/or neck, whereas branches were recognized in only 12/15 aneurysms at 3D TOF-MRA. Conclusion: For evaluation of intracranial aneurysms at 3 T, 3D CE-MRA is superior to 3D TOF

CMS-dependent prognostic impact of KRAS and BRAFV600E mutations in primary colorectal cancer.

Science.gov (United States)

Smeby, J; Sveen, A; Merok, M A; Danielsen, S A; Eilertsen, I A; Guren, M G; Dienstmann, R; Nesbakken, A; Lothe, R A

2018-05-01

The prognostic impact of KRAS and BRAFV600E mutations in primary colorectal cancer (CRC) varies with microsatellite instability (MSI) status. The gene expression-based consensus molecular subtypes (CMSs) of CRC define molecularly and clinically distinct subgroups, and represent a novel stratification framework in biomarker analysis. We investigated the prognostic value of these mutations within the CMS groups. Totally 1197 primary tumors from a Norwegian series of CRC stage I-IV were analyzed for MSI and mutation status in hotspots in KRAS (codons 12, 13 and 61) and BRAF (codon 600). A subset was analyzed for gene expression and confident CMS classification was obtained for 317 samples. This cohort was expanded with clinical and molecular data, including CMS classification, from 514 patients in the publically available dataset GSE39582. Gene expression signatures associated with KRAS and BRAFV600E mutations were used to evaluate differential impact of mutations on gene expression among the CMS groups. BRAFV600E and KRAS mutations were both associated with inferior 5-year overall survival (OS) exclusively in MSS tumors (BRAFV600E mutation versus KRAS/BRAF wild-type: Hazard ratio (HR) 2.85, P CMS1, leading to negative prognostic impact in this subtype (OS: BRAFV600E mutation versus wild-type: HR 7.73, P = 0.001). In contrast, the poor prognosis of KRAS mutations was limited to MSS tumors with CMS2/CMS3 epithelial-like gene expression profiles (OS: KRAS mutation versus wild-type: HR 1.51, P = 0.011). The subtype-specific prognostic associations were substantiated by differential effects of BRAFV600E and KRAS mutations on gene expression signatures according to the MSI status and CMS group. BRAFV600E mutations are enriched and associated with metastatic disease in CMS1 MSS tumors, leading to poor prognosis in this subtype. KRAS mutations are associated with adverse outcome in epithelial (CMS2/CMS3) MSS tumors.

Investigation of the C-3-epi-25(OH)D3 of 25-hydroxyvitamin D3 in urban schoolchildren.

Science.gov (United States)

Berger, Samantha E; Van Rompay, Maria I; Gordon, Catherine M; Goodman, Elizabeth; Eliasziw, Misha; Holick, Michael F; Sacheck, Jennifer M

2018-03-01

The physiological relevance C-3 epimer of 25-hydroxyvitamin D (3-epi-25(OH)D) is not well understood among youth. The objective of this study was to assess whether demographic/physiologic characteristics were associated with 3-epi-25(OH)D 3 concentrations in youth. Associations between 3-epi-25(OH)D 3 and demographics and between 3-epi-25(OH)D 3 , total 25-hydroxyvitamin (25(OH)D) (25(OH)D 2 + 25(OH)D 3 ), total cholesterol, high-density lipoprotein, low-density lipoprotein, and triglycerides were examined in racially/ethnically diverse schoolchildren (n = 682; age, 8-15 years) at Boston-area urban schools. Approximately 50% of participants had detectable 3-epi-25(OH)D 3 (range 0.95-3.95 ng/mL). The percentage of 3-epi-25(OH)D 3 of total 25(OH)D ranged from 2.5% to 17.0% (median 5.5%). Males were 38% more likely than females to have detectable 3-epi-25(OH)D 3 concentrations. Both Asian and black race/ethnicity were associated with lower odds of having detectable 3-epi-25(OH)D 3 compared with non-Hispanic white children (Asian vs. white, odds ratio (OR) 0.28, 95% confidence interval (CI) 0.14-0.53; black vs. white, OR 0.38, 95%CI 0.23-0.63, p 30 ng/mL) 25(OH)D concentration was associated with higher odds of having detectable 3-epi-25(OH)D 3 than having an inadequate (<20 ng/mL) concentration (OR 4.78, 95%CI 3.23-6.94 or OR 14.10, 95%CI 7.10-28.0, respectively). There was no association between 3-epi-25(OH)D 3 and blood lipids. However, when considering 3-epi-25(OH)D 3 as a percentage of total 25(OH)D, total cholesterol was lower in children with percent 3-epi-25(OH)D 3 above the median (mean difference -7.1 mg/dL, p = 0.01). In conclusion, among schoolchildren, sex, race/ethnicity, and total serum 25(OH)D concentration is differentially associated with 3-epi-25(OH)D. The physiological relevance of 3-epi-25(OH)D 3 may be related to the 3-epi-25(OH)D 3 as a percentage of total 25(OH)D and should be considered in future investigations.

Forward energy measurement with CMS

CERN Document Server

Kheyn, Lev

2016-01-01

Energy flow is measured in the forward region of CMS at pseudorapidities up to 6.6 in pp interactions at 13 TeV with forward (HF) and very forward (CASTOR) calorimeters. The results are compared to model predictions. The CMS results at different center-of-mass energies are intercompared using pseudorapidity variable shifted by beam rapidity, thus studying applicability of hypothesis of limiting fragmentation.

42 CFR 405.1834 - CMS reviewing official procedure.

Science.gov (United States)

2010-10-01

... 42 Public Health 2 2010-10-01 2010-10-01 false CMS reviewing official procedure. 405.1834 Section... Determinations and Appeals § 405.1834 CMS reviewing official procedure. (a) Scope. A provider that is a party to... Administrator by a designated CMS reviewing official who considers whether the decision of the intermediary...

Energy Resolution of the Barrel of the CMS Electromagnetic Calorimeter

CERN Document Server

Adzic, Petar; Almeida, Carlos; Almeida, Nuno; Anagnostou, Georgios; Anfreville, Marc; Anicin, Ivan; Antunovic, Zeljko; Auffray, Etiennette; Baccaro, Stefania; Baffioni, Stephanie; Baillon, Paul; Barney, David; Barone, Luciano; Barrillon, Pierre; Bartoloni, Alessandro; Beauceron, Stephanie; Beaudette, Florian; Bell, Ken W; Benetta, Robert; Bercher, Michel; Berthon, Ursula; Betev, Botjo; Beuselinck, Raymond; Bhardwaj, Ashutosh; Bialas, Wojciech; Biino, Cristina; Bimbot, Stephane; Blaha, Jan; Bloch, Philippe; Blyth, Simon; Bordalo, Paula; Bornheim, Adolf; Bourotte, Jean; Britton, David; Brown, Robert M; Brunelière, Renaud; Busson, Philippe; Camporesi, Tiziano; Cartiglia, Nicolo; Cavallari, Francesca; Cerutti, Muriel; Chamont, David; Chang, Paoti; Chang, You-Hao; Charlot, Claude; Chatterji, Sudeep; Chen, E Augustine; Chipaux, Rémi; Choudhary, Brajesh C; Cockerill, David J A; Collard, Caroline; Combaret, Christophe; Cossutti, Fabio; Da Silva, J C; Dafinei, Ioan; Daskalakis, Georgios; Davatz, Giovanna; Decotigny, David; De Min, Alberto; Deiters, Konrad; Dejardin, Marc; Del Re, Daniele; Della Negra, Rodolphe; Della Ricca, Giuseppe; Depasse, Pierre; Descamp, J; Dewhirst, Guy; Dhawan, Satish; Diemoz, Marcella; Dissertori, Günther; Dittmar, Michael; Djambazov, Lubomir; Dobrzynski, Ludwik; Drndarevic, Snezana; Dupanloup, Michel; Dzelalija, Mile; Ehlers, Jan; El-Mamouni, H; Peisert, Anna; Evangelou, Ioannis; Fabbro, Bernard; Faure, Jean-Louis; Fay, Jean; Ferri, Federico; Flower, Paul S; Franzoni, Giovanni; Funk, Wolfgang; Gaillac, Anne-Marie; Gargiulo, Corrado; Gascon-Shotkin, S; Geerebaert, Yannick; Gentit, François-Xavier; Ghezzi, Alessio; Gilly, Jean; Giolo-Nicollerat, Anne-Sylvie; Givernaud, Alain; Gninenko, Sergei; Go, Apollo; Godinovic, Nikola; Golubev, Nikolai; Golutvin, Igor; Gómez-Reino, Robert; Govoni, Pietro; Grahl, James; Gras, Philippe; Greenhalgh, Justin; Guillaud, Jean-Paul; Haguenauer, Maurice; Hamel De Montechenault, G; Hansen, Magnus; Heath, Helen F; Hill, Jack; Hobson, Peter R; Holmes, Daniel; Holzner, André; Hou, George Wei-Shu; Ille, Bernard; Ingram, Quentin; Jain, Adarsh; Jarry, Patrick; Jauffret, C; Jha, Manoj; Karar, M A; Kataria, Sushil Kumar; Katchanov, V A; Kennedy, Bruce W; Kloukinas, Kostas; Kokkas, Panagiotis; Korjik, M; Krasnikov, Nikolai; Krpic, Dragomir; Kyriakis, Aristotelis; Lebeau, Michel; Lecomte, Pierre; Lecoq, Paul; Lemaire, Marie-Claude; Lethuillier, Morgan; Lin, Willis; Lintern, A L; Lister, Alison; Litvin, V; Locci, Elizabeth; Lodge, Anthony B; Longo, Egidio; Loukas, Demetrios; Luckey, D; Lustermann, Werner; Lynch, Clare; MacKay, Catherine Kirsty; Malberti, Martina; Maletic, Dimitrije; Mandjavidze, Irakli; Manthos, Nikolaos; Markou, Athanasios; Mathez, Hervé; Mathieu, Antoine; Matveev, Viktor; Maurelli, Georges; Menichetti, Ezio; Meridiani, Paolo; Milenovic, Predrag; Milleret, Gérard; Miné, Philippe; Mur, Michel; Musienko, Yuri; Nardulli, Alessandro; Nash, Jordan; Neal, Homer; Nédélec, Patrick; Negri, Pietro; Nessi-Tedaldi, Francesca; Newman, Harvey B; Nikitenko, Alexander; Obertino, Maria Margherita; Ofierzynski, Radoslaw Adrian; Organtini, Giovanni; Paganini, Pascal; Paganoni, Marco; Papadopoulos, Ioannis; Paramatti, Riccardo; Pastrone, Nadia; Pauss, Felicitas; Puljak, Ivica; Pullia, Antonino; Puzovic, Jovan; Ragazzi, Stefano; Ramos, Sergio; Rahatlou, Shahram; Rander, John; Ranjan, Kirti; Ravat, Olivier; Raymond, M; Razis, Panos A; Redaelli, Nicola; Renker, Dieter; Reucroft, Steve; Reymond, Jean-Marc; Reynaud, Michel; Reynaud, Serge; Romanteau, Thierry; Rondeaux, Françoise; Rosowsky, André; Rovelli, Chiara; Rumerio, Paolo; Rusack, Roger; Rusakov, Sergey V; Ryan, Matthew John; Rykaczewski, Hans; Sakhelashvili, Tariel; Salerno, Roberto; Santos, Marcelino; Seez, Christopher; Semeniouk, Igor; Sharif, Omar; Sharp, Peter; Shepherd-Themistocleous, Claire; Shevchenko, Sergey; Shivpuri, Ram Krishen; Sidiropoulos, Georgios; Sillou, Daniel; Singovsky, Alexander; Sirois, Y; Sirunyan, Albert M; Smith, Brian; Smith, Vincent J; Sproston, Martin; Suter, Henry; Swain, John; Tabarelli de Fatis, Tommaso; Takahashi, Maiko; Tapper, Robert J; Tcheremoukhine, Alexandre; Teixeira, Isabel; Teixeira, Joao Paulo; Teller, Olivier; Timlin, Claire; Triantis, F A; Troshin, Sergey; Tyurin, Nikolay; Ueno, Koji; Uzunian, Andrey; Varela, Joao; Vaz-Cardoso, N; Verrecchia, Patrice; Vichoudis, Paschalis; Vigano, S; Viertel, Gert; Virdee, Tejinder; Vlassov, E; Wang, Minzu; Weinstein, Alan; Williams, Jennifer C; Yaselli, Ignacio; Zabi, Alexandre; Zamiatin, Nikolai; Zelepoukine, Serguei; Zeller, Michael E; Zhang, Lin; Zhang, Jia-Wen; Zhang, Yawei; Zhu, Kejun; Zhu, Ren-Yuan

2007-01-01

The energy resolution of the barrel part of the CMS Electromagnetic Calorimeter has been studied using electrons of 20 to 250 GeV in a test beam. The incident electron's energy was reconstructed by summing the energy measured in arrays of 3x3 or 5x5 channels. There was no significant amount of correlated noise observed within these arrays. For electrons incident at the centre of the studied 3x3 arrays of crystals, the mean stochastic term was measured to be 2.8% and the mean constant term to be 0.3%. The amount of the incident electron's energy which is contained within the array depends on its position of incidence. The variation of the containment with position is corrected for using the distribution of the measured energy within the array. For uniform illumination of a crystal with 120 GeV electrons a resolution of 0.5% was achieved. The energy resolution meets the design goal for the detector.

Integration of Detectors Into a Large Experiment: Examples From ATLAS and CMS

CERN Document Server

Froidevaux, D

2011-01-01

Integration of Detectors Into a Large Experiment: Examples From ATLAS andCMS, part of 'Landolt-Börnstein - Group I Elementary Particles, Nuclei and Atoms: Numerical Data and Functional Relationships in Science and Technology, Volume 21B2: Detectors for Particles and Radiation. Part 2: Systems and Applications'. This document is part of Part 2 'Principles and Methods' of Subvolume B 'Detectors for Particles and Radiation' of Volume 21 'Elementary Particles' of Landolt-Börnstein - Group I 'Elementary Particles, Nuclei and Atoms'. It contains the Chapter '5 Integration of Detectors Into a Large Experiment: Examples From ATLAS and CMS' with the content: 5 Integration of Detectors Into a Large Experiment: Examples From ATLAS and CMS 5.1 Introduction 5.1.1 The context 5.1.2 The main initial physics goals of ATLAS and CMS at the LHC 5.1.3 A snapshot of the current status of the ATLAS and CMS experiments 5.2 Overall detector concept and magnet systems 5.2.1 Overall detector concept 5.2.2 Magnet systems 5.2.2.1 Rad...

CMS and ATLAS honour their suppliers

CERN Multimedia

2001-01-01

In order to motivate the hundreds of companies building their detectors, the CMS and ATLAS collaborations have recently been handing out awards of excellence to their top suppliers. At its second ceremony of this kind, CMS honoured four of its suppliers, while ATLAS for the first time paid tribute to two of its contractors. The atmosphere in the Council Chamber was festive rather than formal at the start of CMS week on Monday 5 March. Before embarking upon a long series of seminars and presentations, the Collaboration held its second awards ceremony to honour its top suppliers. By paying tribute to the exceptional efforts of certain suppliers, the Collaboration's aim is to motivate all the firms, some 500 in total, taking part in the experiment's construction. The CMS Awards panel thus singles out contractors who have not only provided full satisfaction in terms of compliance with specifications, quality and deadlines, but have in addition provided original solutions to delicate problems. Four firms came away...

CMS rewards eight of its suppliers

CERN Multimedia

2002-01-01

At the third awards ceremony to honour its top suppliers, the CMS collaboration presented awards to eight firms. Seven of them are involved in the manufacture of the magnet. The winners of the third CMS suppliers' awards visit the assembly site for the detector. Unsurprisingly, the CMS magnet was once again in the limelight at the third awards ceremony in honour of the collaboration's top suppliers. 'Unsurprisingly', because this magnet, which must produce an intense field of 4 Tesla inside an enormous volume (12 metres in diameter and 13 metres in length) is the detector's key component. As a result, many firms are involved in its construction. The CMS suppliers' awards are an annual event aimed at rewarding the exceptional efforts of certain companies. Firms are only eligible once they have delivered at least 50% of their supplies. This year, the collaboration honoured eight firms at a ceremony held on Monday 4 March in the main auditorium. Seven of th...

Monte Carlo Production Management at CMS

CERN Document Server

Boudoul, G.; Pol, A; Srimanobhas, P; Vlimant, J R; Franzoni, Giovanni

2015-01-01

The analysis of the LHC data at the Compact Muon Solenoid (CMS) experiment requires the production of a large number of simulated events.During the runI of LHC (2010-2012), CMS has produced over 12 Billion simulated events,organized in approximately sixty different campaigns each emulating specific detector conditions and LHC running conditions (pile up).In order toaggregate the information needed for the configuration and prioritization of the events production,assure the book-keeping and of all the processing requests placed by the physics analysis groups,and to interface with the CMS production infrastructure,the web-based service Monte Carlo Management (McM) has been developed and put in production in 2012.McM is based on recent server infrastructure technology (CherryPy + java) and relies on a CouchDB database back-end.This contribution will coverthe one and half year of operational experience managing samples of simulated events for CMS,the evolution of its functionalitiesand the extension of its capabi...

The CMS Outer Hadron Calorimeter

CERN Document Server

Acharya, Bannaje Sripathi; Banerjee, Sunanda; Banerjee, Sudeshna; Bawa, Harinder Singh; Beri, Suman Bala; Bhandari, Virender; Bhatnagar, Vipin; Chendvankar, Sanjay; Deshpande, Pandurang Vishnu; Dugad, Shashikant; Ganguli, Som N; Guchait, Monoranjan; Gurtu, Atul; Kalmani, Suresh Devendrappa; Kaur, Manjit; Kohli, Jatinder Mohan; Krishnaswamy, Marthi Ramaswamy; Kumar, Arun; Maity, Manas; Majumder, Gobinda; Mazumdar, Kajari; Mondal, Naba Kumar; Nagaraj, P; Narasimham, Vemuri Syamala; Patil, Mandakini Ravindra; Reddy, L V; Satyanarayana, B; Sharma, Seema; Singh, B; Singh, Jas Bir; Sudhakar, Katta; Tonwar, Suresh C; Verma, Piyush

2006-01-01

The CMS hadron calorimeter is a sampling calorimeter with brass absorber and plastic scintillator tiles with wavelength shifting fibres for carrying the light to the readout device. The barrel hadron calorimeter is complemented with a outer calorimeter to ensure high energy shower containment in CMS and thus working as a tail catcher. Fabrication, testing and calibrations of the outer hadron calorimeter are carried out keeping in mind its importance in the energy measurement of jets in view of linearity and resolution. It will provide a net improvement in missing $\\et$ measurements at LHC energies. The outer hadron calorimeter has a very good signal to background ratio even for a minimum ionising particle and can hence be used in coincidence with the Resistive Plate Chambers of the CMS detector for the muon trigger.

Test vehicles for CMS HGCAL readout ASIC

CERN Document Server

Thienpont, Damien

2017-01-01

This paper presents first measurement results of two test vehicles ASIC embedding some building blocks for the future CMS High Granularity CALorimeter (HGCAL) read-out ASIC. They were fabricated in CMOS 130 nm, in order to first design the Analog and Mixed-Signal blocks before going to a complete and complex chip. Such a circuit needs to achieve low noise high dynamic range charge measurement and 20 ps resolution timing capability. The results show good analog performance but with higher noise levels compared to simulations. We present the results of the preamplifiers, shapers and ADCs.

Automating the CMS DAQ

International Nuclear Information System (INIS)

Bauer, G; Darlea, G-L; Gomez-Ceballos, G; Bawej, T; Chaze, O; Coarasa, J A; Deldicque, C; Dobson, M; Dupont, A; Gigi, D; Glege, F; Gomez-Reino, R; Hartl, C; Hegeman, J; Masetti, L; Behrens, U; Branson, J; Cittolin, S; Holzner, A; Erhan, S

2014-01-01

We present the automation mechanisms that have been added to the Data Acquisition and Run Control systems of the Compact Muon Solenoid (CMS) experiment during Run 1 of the LHC, ranging from the automation of routine tasks to automatic error recovery and context-sensitive guidance to the operator. These mechanisms helped CMS to maintain a data taking efficiency above 90% and to even improve it to 95% towards the end of Run 1, despite an increase in the occurrence of single-event upsets in sub-detector electronics at high LHC luminosity.

Multifunctional Cellular Materials Based on 2D Nanomaterials: Prospects and Challenges.

Science.gov (United States)

Qiu, Ling; He, Zijun; Li, Dan

2018-01-01

Recent advances in emerging 2D nanomaterial-based cellular materials (2D-CMs) open up new opportunities for the development of next generation cellular solids with exceptional properties. Herein, an overview of the current research status of 2D-CMs is provided and their future opportunities are highlighted. First, the unique features of 2D nanomaterials are introduced to illustrate why these nanoscale building blocks are promising for the development of novel cellular materials and what the new features of 2D nanoscale building blocks can offer when compared to their 0D and 1D counterparts. An in-depth discussion on the structure-property relationships of 2D-CMs is then provided, and the remarkable functions that can be achieved by engineering their cellular architecture are highlighted. Additionally, the use of 2D-CMs to tackle key challenges in different practical applications is demonstrated. In conclusion, a personal perspective on the challenges and future research directions of 2D-CMs is given. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

A mathematical model for fluid shear-sensitive 3D tissue construct development.

Science.gov (United States)

Liu, Dan; Chua, Chee-Kai; Leong, Kah-Fai

2013-01-01

This research studies dynamic culture for 3D tissue construct development with computational fluid dynamics. It proposes a mathematical model to evaluate the impact of flow rates and flow shear stress on cell growth in 3D constructs under perfusion. The modeling results show that dynamic flow, even at flow rate as low as 0.002 cm/s, can support much better mass exchange, higher cell number, and more even cell and nutrient distribution compared to static culture. Higher flow rate can further improve nutrient supply and mass exchange in the construct, promoting better nutritious environment and cell proliferation compared to lower flow rate. In addition, consideration of flow shear stress predicts much higher cell number in the construct compared to that without shear consideration. While the nutrient can dominate shear stress in influencing cell proliferation, the shear effect increases with flow rate. The proposed model helps tissue engineers better understand the cell-flow relationship at the molecular level during dynamic culture.

Strong Production SUSY Searches at ATLAS and CMS

CERN Document Server

Marshall, Z L

2015-01-01

The results of searches for strongly-produced supersymmetry at the Large Hadron Collider by the ATLAS and CMS collaborations are presented. Several of the historically strongest zero-and one-lepton final state searches have been updated to include multi-bin fits and combinations. In addition, new two-lepton final state search results are shown from CMS and ATLAS, which show 2.6 and 3.0 standard deviation excesses, respectively, above the standard model expectation, albeit in different regions of phase space. Both collaborations have also shown new searches that cover areas uncovered by previous searches, in both searches for light stops and searches for stealth supersymmetry.

CMS releases new batch of LHC open data

CERN Document Server

Achintya Rao

2016-01-01

CMS makes 300 TB of high-quality data from the LHC available to the public through the CERN Open Data Portal.   A CMS collision event as seen in the built-in event display on the CERN Open Data Portal (Image: CERN) The CMS collaboration has made 300 TB of high-quality data from the LHC available to the public through the CERN Open Data Portal. The collision data come in two types: The so-called “primary datasets” are in the same format used by the CMS Collaboration to perform research. The “derived datasets” on the other hand require a lot less computing power and can be readily analysed by university or even high-school students. Notably, CMS is also providing the simulated data generated with the same software version that should be used to analyse the primary datasets. Simulations play a crucial role in particle-physics research and CMS is also making available the protocols for generating the simulations that are provided. The data release is accompanie...

Readiness of CMS simulation towards LHC startup

International Nuclear Information System (INIS)

Banerjee, S

2008-01-01

The CMS experiment has used detector simulation software in its conceptual as well as technical design. With the detector construction near its completion, the role of simulation has changed toward understanding collision data to be collected by CMS in near future. CMS simulation software is becoming a data driven, realistic and accurate Monte Carlo programme. The software architecture is described with some detail of the framework as well as detector specific components. Performance issues are discussed as well

Performance of the CMS Drift Tube Chambers with Cosmic Rays

CERN Document Server

Chatrchyan, S; Sirunyan, A M; Adam, W; Arnold, B; Bergauer, H; Bergauer, T; Dragicevic, M; Eichberger, M; Erö, J; Friedl, M; Frühwirth, R; Ghete, V M; Hammer, J; Hänsel, S; Hoch, M; Hörmann, N; Hrubec, J; Jeitler, M; Kasieczka, G; Kastner, K; Krammer, M; Liko, D; Magrans de Abril, I; Mikulec, I; Mittermayr, F; Neuherz, B; Oberegger, M; Padrta, M; Pernicka, M; Rohringer, H; Schmid, S; Schöfbeck, R; Schreiner, T; Stark, R; Steininger, H; Strauss, J; Taurok, A; Teischinger, F; Themel, T; Uhl, D; Wagner, P; Waltenberger, W; Walzel, G; Widl, E; Wulz, C E; Chekhovsky, V; Dvornikov, O; Emeliantchik, I; Litomin, A; Makarenko, V; Marfin, I; Mossolov, V; Shumeiko, N; Solin, A; Stefanovitch, R; Suarez Gonzalez, J; Tikhonov, A; Fedorov, A; Karneyeu, A; Korzhik, M; Panov, V; Zuyeuski, R; Kuchinsky, P; Beaumont, W; Benucci, L; Cardaci, M; De Wolf, E A; Delmeire, E; Druzhkin, D; Hashemi, M; Janssen, X; Maes, T; Mucibello, L; Ochesanu, S; Rougny, R; Selvaggi, M; Van Haevermaet, H; Van Mechelen, P; Van Remortel, N; 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2010-01-01

Studies of the performance of the CMS drift tube barrel muon system are described, with results based on data collected during the CMS Cosmic Run at Four Tesla. For most of these data, the solenoidal magnet was operated with a central field of 3.8 T. The analysis of data from 246 out of a total of 250 chambers indicates a very good muon reconstruction capability, with a coordinate resolution for a single hit of about 260 microns, and a nearly 100% efficiency for the drift tube cells. The resolution of the track direction measured in the bending plane is about 1.8 mrad, and the efficiency to reconstruct a segment in a single chamber is higher than 99%. The CMS simulation of cosmic rays reproduces well the performance of the barrel muon detector.

Performance and track-based alignment of the Phase-1 upgraded CMS pixel detector

CERN Document Server

Botta, Valeria

2017-01-01

The Compact Muon Solenoid (CMS) detector is a multi-purpose detector constructed in order to study high-energy particle collisions at the Large Hadron Collider (LHC) at CERN. The all-silicon design of the tracking system of the CMS experiment provided excellent resolution for charged tracks and an efficient tagging of jets during Run 1 and Run 2 of the LHC. After the pixel detector of the CMS experiment was upgraded and installed during the shutdown in the beginning of 2017, the positions and orientations of the tracker modules needed to be determined with a precision of several micrometers. The alignment also needs to be quickly recalculated each time the state of the CMS magnet is changed between 0 T and 3.8 T. The latest results of the CMS tracker performance in the 2017 run are presented, with a special focus on alignment and resolution performance using several million reconstructed tracks from cosmic rays and collision data.

CMS Higgs Search in 2011 and 2012 data: candidate photon-photon event (8 TeV): 3D, r-phi and r-z transverse views

CERN Multimedia

Mc Cauley, Thomas

2013-01-01

Event recorded with the CMS detector in 2012 at a proton-proton centre of mass energy of 8 TeV. The event shows characteristics expected from the decay of the SM Higgs boson to a pair of photons (dashed yellow lines and green towers). The event could also be due to known standard model background processes.

Detector Alignment Studies for the CMS Experiment

CERN Document Server

Lampén, Tapio

2007-01-01

This thesis presen ts studies related to trac k-based alignmen t for the future CMS exp erimen t at CERN. Excellen t geometric alignmen t is crucial to fully bene t from the outstanding resolution of individual sensors. The large num ber of sensors mak es it dicult in CMS to utilize computationally demanding alignmen t algorithms. A computationally ligh t alignmen t algorithm, called the Hits and Impact Points algorithm (HIP), is dev elop ed and studied. It is based on minimization of the hit residuals. It can be applied to individual sensors or to comp osite objects. All six alignmen t parameters (three translations and three rotations), or their subgroup can be considered. The algorithm is exp ected to be particularly suitable for the alignmen t of the innermost part of CMS, the pixel detector, during its early operation, but can be easily utilized to align other parts of CMS also. The HIP algorithm is applied to sim ulated CMS data and real data measured with a test-b eam setup. The sim ulation studies dem...

42 CFR 482.74 - Condition of participation: Notification to CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 5 2010-10-01 2010-10-01 false Condition of participation: Notification to CMS... participation: Notification to CMS. (a) A transplant center must notify CMS immediately of any significant... conditions of participation. Instances in which CMS should receive information for follow up, as appropriate...

BakeCMS satura vadības sistēma

OpenAIRE

Znotiņš, Artūrs

2012-01-01

Kvalifikācijas darbs apraksta izstrādātu BakeCMS satura vadības sistēmu, kas piedāvā ērti pielāgojamu tīmekļa vietņu administrēšanas paneli. Sistēma tīmekļa vietnes administratoram nodrošina ērtu veidu, kā rediģēt vietnes tekstuālo un vizuālo informāciju. BeakeCMS sevī ietver jau gatavus biežāk nepieciešamos lapas satura vadības moduļus un piedāvā programmatūras saskarni (API), kas atvieglo jaunu moduļu izstrādi un esošo pielāgošanu konkrētās vietnes vajadzībām. Izstrāde ir pilnībā dokumentēt...

The CMS Electromagnetic Calorimeter: Construction, Commissioning and Calibration

CERN Document Server

ORIMOTO,Toyoko J.

2009-01-01

The Compact Muon Solenoid (CMS) detector at the Large Hadron Colider (LHC) is ready for first collisions. The Electromagnetic Calorimeter (ECAL) of CMS, a high resolution detector comprised of nearly 76000 lead tungstate crystals, will play a crucial role in the coming physics searches undertaken by CMS. The design and performance of the CMS ECAL with test beams, cosmic rays, and first single beam data will be presented. In addition, the status of the calorimeter and plans for calibration with first collisions will be discussed. European Physical Society Europhysics Conference on High Energy Physics July 16-22, 2009 Krakow, Poland ∗Speaker.

CMS Sensitivity to Quark Contact Interactions using Dijets

CERN Document Server

Esen, Selda

2006-01-01

We estimate CMS sensitivity to quark contact interactions in the dijet final state. The canonical model of a contact interaction among left-handed composite quarks changes the dijet angular distribution at high dijet mass. The dijet ratio variable introduced at the Tevatron is used as a simple measure of the angular distribution as a function of dijet mass. The contact interaction signal and QCD background are estimated for the dijet ratio as a function of dijet mass from 0.3 to 6.5 TeV. Statistical uncertainties are estimated for integrated luminosities of 100 pb^-1, 1 fb^-1, and 10 fb^-1 and a realistic trigger table including multiple thresholds and prescales for the single jet triggers. Systematic uncertainties on the dijet ratio are estimated and are found to be small. The chisquard between the background and the signal is estimated, including systematics, and is used to find CMS sensitivity to the contact interaction scale Lambda^+. For an integrated luminosity of 100 pb^-1, 1 fb^-1, and 10 fb^-1, CMS c...

Abrupt symmetry decrease in the ThT2Al20 alloys (T = 3d transition metal)

International Nuclear Information System (INIS)

Uziel, A.; Bram, A.I.; Venkert, A.; Kiv, A.E.; Fuks, D.; Meshi, L.

2015-01-01

Th-T-Al system, where T-3d transition metals, was studied at ThT 2 Al 20 stoichiometry to establish the influence of T on the structural stability of ternary aluminide formed. Different alloys were prepared, varying T in the row from Ti to Fe. Using electron microscopy and X-ray diffraction methods it was found that ThT 2 Al 20 phase adopts CeCr 2 Al 20 structure type when T = Ti, V, and Cr. Starting from Mn, the symmetry of the stable Al-rich phase, which forms in the alloys with the same composition, decreases from cubic to orthorhombic. The results of Density Functional Theory (DFT) calculations coincide with experiments. Concepts of the Theory of Coordination Compounds and Jahn–Teller effect were used to explain the observed abrupt change of the symmetry. These considerations were supported by DFT calculations. - Highlights: • Type of transition metal influences symmetry change in the ThT 2 Al 20 alloys. • It was found that cubic ThT 2 Al 20 phase is stable for T = Ti, V and Cr. • When T = Mn, Fe–Al + orthorhombic ThT 2 Al 10 are formed, lowering the symmetry. • Experimental results and DFT calculations were in full agreement. • TCC and of Jahn–Teller effect were used for explanation of the results

Highlights from CMS

CERN Document Server

Autermann, Christian

2018-01-01

This article summarizes the latest highlights from the CMS experiment as presented at the Lepton Photon conference 2017 in Guangzhou, China. A selection of the latest physics results, the latest detector upgrades, and the current detector status are discussed. CMS has analyzed the full dataset of proton-proton collision data delivered by the LHC in 2016 at a center-of-mass energy of $13$\\,TeV corresponding to an integrated luminosity of $40$\\,fb$^{-1}$. The leap in center-of-mass energy and in luminosity with respect to the $7$ and $8$\\,TeV runs enabled interesting and relevant new physics results. A new silicon pixel tracking detector was installed during the LHC shutdown 2016/17 and has successfully started operation.

23 CFR 971.214 - Federal lands congestion management system (CMS).

Science.gov (United States)

2010-04-01

... 23 Highways 1 2010-04-01 2010-04-01 false Federal lands congestion management system (CMS). 971... Federal lands congestion management system (CMS). (a) For purposes of this section, congestion means the...) Develop criteria to determine when a CMS is to be implemented for a specific FH; and (2) Have CMS coverage...

3-D Vector Flow Estimation With Row-Column-Addressed Arrays.

Science.gov (United States)

Holbek, Simon; Christiansen, Thomas Lehrmann; Stuart, Matthias Bo; Beers, Christopher; Thomsen, Erik Vilain; Jensen, Jorgen Arendt

2016-11-01

Simulation and experimental results from 3-D vector flow estimations for a 62 + 62 2-D row-column (RC) array with integrated apodization are presented. A method for implementing a 3-D transverse oscillation (TO) velocity estimator on a 3-MHz RC array is developed and validated. First, a parametric simulation study is conducted, where flow direction, ensemble length, number of pulse cycles, steering angles, transmit/receive apodization, and TO apodization profiles and spacing are varied, to find the optimal parameter configuration. The performance of the estimator is evaluated with respect to relative mean bias ~B and mean standard deviation ~σ . Second, the optimal parameter configuration is implemented on the prototype RC probe connected to the experimental ultrasound scanner SARUS. Results from measurements conducted in a flow-rig system containing a constant laminar flow and a straight-vessel phantom with a pulsating flow are presented. Both an M-mode and a steered transmit sequence are applied. The 3-D vector flow is estimated in the flow rig for four representative flow directions. In the setup with 90° beam-to-flow angle, the relative mean bias across the entire velocity profile is (-4.7, -0.9, 0.4)% with a relative standard deviation of (8.7, 5.1, 0.8)% for ( v x , v y , v z ). The estimated peak velocity is 48.5 ± 3 cm/s giving a -3% bias. The out-of-plane velocity component perpendicular to the cross section is used to estimate volumetric flow rates in the flow rig at a 90° beam-to-flow angle. The estimated mean flow rate in this setup is 91.2 ± 3.1 L/h corresponding to a bias of -11.1%. In a pulsating flow setup, flow rate measured during five cycles is 2.3 ± 0.1 mL/stroke giving a negative 9.7% bias. It is concluded that accurate 3-D vector flow estimation can be obtained using a 2-D RC-addressed array.

The CMS detector before closure

CERN Multimedia

Patrice Loiez

2006-01-01

The CMS detector before testing using muon cosmic rays that are produced as high-energy particles from space crash into the Earth's atmosphere generating a cascade of energetic particles. After closing CMS, the magnets, calorimeters, trackers and muon chambers were tested on a small section of the detector as part of the magnet test and cosmic challenge. This test checked the alignment and functionality of the detector systems, as well as the magnets.

Recent SUSY Results from CMS

CERN Multimedia

CERN. Geneva

2012-01-01

We present a summary of the recent results of searches for supersymmetry conducted by the CMS experiment. Several searches are reported using complementary final states and methods. The results presented include searches for stops and sbottoms, production of charginos and neutralinos, and R-parity violating signatures. Several of them are the first results of their kind from CMS, while others increased the mass reach significantly over previously published results from the LHC.

Inauguration of the CMS solenoid

CERN Multimedia

Maximilien Brice

2005-01-01

In early 2005 the final piece of the CMS solenoid magnet arrived, marked by this ceremony held in the CMS assembly hall at Cessy, France. The solenoid is made up of five pieces totaling 12.5 m in length and 6 m in diameter. Weighing 220 tonnes, it will produce a 4 T magnetic field, 100 000 times the strength of the Earth's magnetic field and store enough energy to melt 18 tonnes of gold.

Forward-central jet correlations in pp collisions at CMS

International Nuclear Information System (INIS)

Ribeiro Cipriano, Pedro Miguel

2014-03-01

The azimuthal correlation between central and forward jets has been measured in proton-proton collisions at the LHC recorded with the CMS detector at a centre-of-mass energy of 7 TeV. Both jets were required to have a minimum transverse momentum of 35 GeV. The forward jet was reconstructed in the hadronic forward calorimeter within the pseudo-rapidity range 3.2 T >20 GeV in the pseudo rapidity interval between the forward and the central jet is required, while in the second sub-sample events containing such jets are explicitly vetoed. Furthermore, observables describing additional jets outside of the pseudo-rapidity interval spanned by the dijet system are measured. Most of the results are found to be well described by DGLAP-based Monte Carlo event generators.

The commissioning of CMS sites: Improving the site reliability

International Nuclear Information System (INIS)

Belforte, S; Fisk, I; Flix, J; Hernandez, J M; Klem, J; Letts, J; Magini, N; Saiz, P; Sciaba, A

2010-01-01

The computing system of the CMS experiment works using distributed resources from more than 60 computing centres worldwide. These centres, located in Europe, America and Asia are interconnected by the Worldwide LHC Computing Grid. The operation of the system requires a stable and reliable behaviour of the underlying infrastructure. CMS has established a procedure to extensively test all relevant aspects of a Grid site, such as the ability to efficiently use their network to transfer data, the functionality of all the site services relevant for CMS and the capability to sustain the various CMS computing workflows at the required scale. This contribution describes in detail the procedure to rate CMS sites depending on their performance, including the complete automation of the program, the description of monitoring tools, and its impact in improving the overall reliability of the Grid from the point of view of the CMS computing system.

CMS Hadronic EndCap Calorimeter Upgrade R&D Studies

CERN Document Server

Akgun, Ugur; Onel, Yasar

2012-01-01

Due to an expected increase in radiation damage in LHC, we propose to replace the active material of the CMS Hadronic EndCap calorimeters with radiation hard quartz plate. Quartz is proven to be radiation hard with radiation damage tests using electron, proton, neutron and gamma beams. However, the light produced in quartz is from Cerenkov process, which yields drastically fewer photons than scintillators. To increase the light collection efficiency we pursue two separate methods: First method: use wavelength shifting (WLS) fibers, which have been shown to collect efficiently the Cerenkov light generated in quartz plates. A quartz plate calorimeter prototype with WLS fibers has been constructed and tested at CERN that shows this method is feasible. Second proposed solution is to treat the quartz plates with radiation hard wavelength shifters, p-terphenyl, doped zinc oxide, or doped CdS. Another calorimeter prototype has been constructed with p-terphenyl deposited quartz plates, and showed superior calorimeter...

Ogura-CMS in Chinese cabbage (Brassica rapa ssp. pekinensis) causes delayed expression of many nuclear genes.

Science.gov (United States)

Dong, Xiangshu; Kim, Wan Kyu; Lim, Yong-Pyo; Kim, Yeon-Ki; Hur, Yoonkang

2013-02-01

We investigated the mechanism regulating cytoplasmic male sterility (CMS) in Brassica rapa ssp. pekinensis using floral bud transcriptome analyses of Ogura-CMS Chinese cabbage and its maintainer line in B. rapa 300-K oligomeric probe (Br300K) microarrays. Ogura-CMS Chinese cabbage produced few and infertile pollen grains on indehiscent anthers. Compared to the maintainer line, CMS plants had shorter filaments and plant growth, and delayed flowering and pollen development. In microarray analysis, 4646 genes showed different expression, depending on floral bud size, between Ogura-CMS and its maintainer line. We found 108 and 62 genes specifically expressed in Ogura-CMS and its maintainer line, respectively. Ogura-CMS line-specific genes included stress-related, redox-related, and B. rapa novel genes. In the maintainer line, genes related to pollen coat and germination were specifically expressed in floral buds longer than 3mm, suggesting insufficient expression of these genes in Ogura-CMS is directly related to dysfunctional pollen. In addition, many nuclear genes associated with auxin response, ATP synthesis, pollen development and stress response had delayed expression in Ogura-CMS plants compared to the maintainer line, which is consistent with the delay in growth and development of Ogura-CMS plants. Delayed expression may reduce pollen grain production and/or cause sterility, implying that mitochondrial, retrograde signaling delays nuclear gene expression. Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.

Open beauty production and modifications in PbPb collisions at 5.02 TeV with CMS

CERN Document Server

Wang, Ta-Wei

2017-01-01

Beauty production and phenomena in heavy-ion collisions are considered to be one of the key measurements to address the flavour-dependence of in-medium energy loss in PbPb collisions at the LHC. The CMS experiment has excellent capabilities for measuring b-quark production thanks to the excellent performances of its muon and tracker system, allowing the measurement of $D^{0}$ and J/$\\Psi$ mesons from B meson decays, separately from prompt production, as well as fully reconstructed B mesons. In this talk, CMS will present the first measurement of the $v_{2}$ Fourier harmonic and the $R_{AA}$ down to $p_{T} gt 3$ GeV/c, for J/$\\Psi$ produced in B meson decays, in PbPb collisions at $\\sqrt{s_{NN}}$ = 2.76 TeV, as a function of transverse momentum, rapidity and event centrality. New measurements of the $R_{AA}$ of non-prompt J/$\\Psi$ and $D^{0}$ from $B$ decay in PbPb collisions at $\\sqrt{s_{NN}}$ = 5.02 TeV will also be reported. Finally, the measurement of $R_{AA}$ for fully reconstructed B mesons will be sho...

Dynamic accommodative response to different visual stimuli (2D vs 3D) while watching television and while playing Nintendo 3DS console.

Science.gov (United States)

Oliveira, Sílvia; Jorge, Jorge; González-Méijome, José M

2012-09-01

The aim of the present study was to compare the accommodative response to the same visual content presented in two dimensions (2D) and stereoscopically in three dimensions (3D) while participants were either watching a television (TV) or Nintendo 3DS console. Twenty-two university students, with a mean age of 20.3 ± 2.0 years (mean ± S.D.), were recruited to participate in the TV experiment and fifteen, with a mean age of 20.1 ± 1.5 years took part in the Nintendo 3DS console study. The accommodative response was measured using a Grand Seiko WAM 5500 autorefractor. In the TV experiment, three conditions were used initially: the film was viewed in 2D mode (TV2D without glasses), the same sequence was watched in 2D whilst shutter-glasses were worn (TV2D with glasses) and the sequence was viewed in 3D mode (TV3D). Measurements were taken for 5 min in each condition, and these sections were sub-divided into ten 30-s segments to examine changes within the film. In addition, the accommodative response to three points of different disparity of one 3D frame was assessed for 30 s. In the Nintendo experiment, two conditions were employed - 2D viewing and stereoscopic 3D viewing. In the TV experiment no statistically significant differences were found between the accommodative response with TV2D without glasses (-0.38 ± 0.32D, mean ± S.D.) and TV3D (-0.37 ± 0.34D). Also, no differences were found between the various segments of the film, or between the accommodative response to different points of one frame (p > 0.05). A significant difference (p = 0.015) was found, however, between the TV2D with (-0.32 ± 0.32D) and without glasses (-0.38 ± 0.32D). In the Nintendo experiment the accommodative responses obtained in modes 2D (-2.57 ± 0.30D) and 3D (-2.49 ± 0.28D) were significantly different (paired t-test p = 0.03). The need to use shutter-glasses may affect the accommodative response during the viewing of displays, and the accommodative response when playing

CMS: the first barrel ring completed!

CERN Multimedia

2000-01-01

Seven years after design studies began, CERN and the German company DWE have erected the first of the five CMS yoke rings, a giant component weighing 1200 tonnes. The first ring of the CMS magnet yoke, a twelve-sided 15-metre-high colossus, has been erected in the new hall at Point 5 near Cessy. For the last few days it has stood unaided, no longer relying on the central structure required for its assembly. Its construction marks an important milestone in the CMS programme, the culmination of seven years of work at CERN and over two years of manufacturing at DWE. Awarded the contract by the Swiss Federal Institute of Technology (ETH), Zürich, the German manufacturer has produced and assembled the ring components in collaboration with a team from CERN. This feat of mechanical engineering was celebrated two weeks ago at a drink attended by the main protagonists, headed by Franz Kufner, divisional manager at DWE, Franz Leher, production engineer at DWE, Alain Hervé, CMS technical coordinator,...

Performance test of the CMS link alignment system

CERN Document Server

Arce, P; Calvo, E; Fernández, M G; Ferrando, A; Figueroa, C F; García, N; Josa-Mutuberria, I; Molinero, A; Oller, J C; Rodrigo, T; Vila, I; Virto, A L

2002-01-01

A first global test of the CMS Alignment System was performed at the I4 hall of the CERN ISR tunnel. Positions of the network, reproducing a set of points in the CMS detector monitored by the Link System, were reconstructed and compared to survey measurements. Spatial and angular reconstruction precisions reached in the present experimental set-up are already close to the CMS requirements.

Tracking performance with cosmic rays in CMS

International Nuclear Information System (INIS)

Cerati, G.B.

2009-01-01

The CMS Tracker is the biggest all-silicon detector in the world and is designed to be extremely efficient and accurate even in a very hostile environment such as the one close to the CMS collision point. It consists of an inner pixel detector, made of three barrel layers (48M pixels) and four forward disks (16M pixels), and an outer micro-strip detector, divided in two barrel sub-detectors, TIB and TOB, and two endcap sub-detectors, TID and TEC, for a total of 9.6M strips. The commissioning of the CMS Tracker detector has been initially carried out at the Tracker Integration Facility at CERN (TIF), where cosmic ray data were collected for the strip detector only, and is still ongoing at the CMS site (LHC Point 5). Here the Strip and Pixel detectors have been installed in the experiment and are taking part to the cosmic global-runs. After an overview of the tracking algorithms for cosmic-ray data reconstruction, the resulting tracking performance on cosmic data both at TIF and at P5 are presented. The excellent performance proves that the CMS Tracker is ready for the first collisions foreseen for 2009.

CMS announces new payment model

Directory of Open Access Journals (Sweden)

Robbins RA

2018-01-01

Full Text Available No abstract available. Article truncated after 150 words. On Tuesday, 1/9/18, the Centers for Medicare and Medicaid (CMS announced a new voluntary bundled-payment model that will be considered an advanced alternative payment model under Medicare Access and CHIP Reauthorization Act of 2015 (MACRA (1. The new model is the first advanced Alternative Payment Model (APM to be introduced by the Trump administration. The Trump administration has been a vocal advocate of reducing administrative burden for clinicians and has touted voluntary models as a solution (2. The new, voluntary model comes less than two months after the CMS officially decided to eliminate two mandatory bundled-payment models created during the Obama administration. Under the model, clinician payment will be based on quality measures during a 90-day episode of care. Participants must select at least one of the 32 clinical episodes to apply to the model. The inpatient clinical episodes are listed in Table 1 (3. Table 1. Clinical inpatient episodes under …

Strong piezoelectric anisotropy d15/d33 in ⟨111⟩ textured Pb(Mg1/3Nb2/3)O3-Pb(Zr,Ti)O3 ceramics

Science.gov (United States)

Yan, Yongke; Priya, Shashank

2015-08-01

The shear mode piezoelectric properties of Pb(Mg1/3Nb2/3)O3-Pb(Zr,Ti)O3 (PMN-PZT) ceramic with 72% ⟨111⟩ texture were investigated. The piezoelectric anisotropic factor d15/d33 was as high as 8.5 in ⟨111⟩ textured ceramic as compared to 2.0 in random counterpart. The high d15/d33 indicates the "rotator" ferroelectric characteristics of PMN-PZT system and suggests that the large shear piezoelectric response contributes towards the high longitudinal piezoelectric response (d33) in non-polar direction (d33 = 1100 pC/N in ⟨001⟩ textured ceramic vs. d33 = 112 pC/N in ⟨111⟩ textured ceramic).

Trust, Voice, and Library 2.0

Science.gov (United States)

Watkins, Candice

2009-01-01

Web 2.0 is a constant and growing theme in the library field. This article describes a social networking site based on a Web 2.0 infused course management system (CMS) developed by Clatsop Community College in Astoria, Oregon.

Etude et optimisation des performances du calorimètre électromagnétique de l'expérience CMS pour la physique au LHC

CERN Document Server

Descamps, Julien; Jarry, Patrick

2007-01-01

The CMS experiment (Compact Muon Solenoid) is one of the two multi-purpose experiments of the proton-proton collider LHC (Large Hadron Collider) currently starting at CERN (Geneva). One of the main goals of CMS is the search for the Higgs boson. Because of the LHC challenging environment, the collaboration have chosen an electromagnetic calorimeter made of about 75000 scintillating lead tungstate crystals P bW O4 , at the same time fast, radiation hard, and extremely precise, especially in the energy range for the Higgs boson search, in the channel where it decays in two photons. The five first chapters of this thesis present the LHC, the CMS detector and notably the electro- magnetic calorimeter (ECAL). The sixth chapter presents a test beam analysis realized in 2004 at CERN with an electron beam of different energies (20-250 GeV) incident on a part (1/36) of the calorimeter barrel called “ supermodule ”. A study of the energy measurement variation within 9 (3×3) and 25 (5×5) crystals matrices as funct...

Luminosity measurement and beam condition monitoring at CMS

Energy Technology Data Exchange (ETDEWEB)

Leonard, Jessica Lynn [DESY, Zeuthen (Germany)

2015-07-01

The BRIL system of CMS consists of instrumentation to measure the luminosity online and offline, and to monitor the LHC beam conditions inside CMS. An accurate luminosity measurement is essential to the CMS physics program, and measurement of the beam background is necessary to ensure safe operation of CMS. In expectation of higher luminosity and denser proton bunch spacing during LHC Run II, many of the BRIL subsystems are being upgraded and others are being added to complement the existing measurements. The beam condition monitor (BCM) consists of several sets of diamond sensors used to measure online luminosity and beam background with a single-bunch-crossing resolution. The BCM also detects when beam conditions become unfavorable for CMS running and may trigger a beam abort to protect the detector. The beam halo monitor (BHM) uses quartz bars to measure the background of the incoming beams at larger radii. The pixel luminosity telescope (PLT) consists of telescopes of silicon sensors designed to provide a CMS online and offline luminosity measurement. In addition, the forward hadronic calorimeter (HF) will deliver an independent luminosity measurement, making the whole system robust and allowing for cross-checks of the systematics. Data from each of the subsystems will be collected and combined in the BRIL DAQ framework, which will publish it to CMS and LHC. The current status of installation and commissioning results for the BRIL subsystems are given.

1st February 2011-CERN Cultural Board for Engaging with the Arts, visiting CMS experimental area and LHC Tunnel at Point 5

CERN Multimedia

Michael Hoch

2011-01-01

Photo 1-4: Visit to CMS Control Room with G. Tonelli,CMS Collaboration Spokesperson Photo 5-9,16-20:CMS experimental area Photo 10-15:LHC Tunnel at Point 5 Photo 21:F. Madlener,Director of IRCAM Paris+S. Dorny,Director-General Lyon Opera House+C. Bollman,Art by Genève+M. Doser,AEgIS Collaboration Spokesperson,Former Physics Department Deputy Head+A. Koek,International Arts Development+G. Tonelli+M. Monje Cano,Arts Development Assistant (part-time work experience)+B. Ruf,Director of Kunsthalle Zürich

42 CFR 417.464 - End of CMS's liability for payment: Disenrollment of beneficiaries and termination or default of...

Science.gov (United States)

2010-10-01

... 42 Public Health 3 2010-10-01 2010-10-01 false End of CMS's liability for payment: Disenrollment... Enrollment, Entitlement, and Disenrollment under Medicare Contract § 417.464 End of CMS's liability for... disenrollment: General rule. (1) CMS's liability for monthly capitation payments to the HMO or CMP generally...

Russian and Belorussian firms receive CMS Gold Awards

CERN Multimedia

Maximilien Brice

2003-01-01

On 7 March, CMS handed out its three latest Gold Awards in recognition of outstanding supplier performance. Photos 01,02: Prof. Felicitas Pauss, Deputy Chair of the CMS Collaboration Board, presents a CMS Gold Award to Professor Valery Novikov, Director-General of Myasishchev Design Bureau, Zhukovsky, Moscow Region, Russia. The Myasishchev company was responsible for the carbon fibre structures in which the fragile lead tungstate crystals of the electromagnetic calorimeter end-caps are to be embedded. These lightweight structures must support a weight of 22.9 tonnes in each end-cap! The company produced a very thin-walled modular structure that ensured the calorimeter performance would not be harmed, while remaining stable and strong. Photos 03,04: Prof. Felicitas Pauss, Deputy Chair of the CMS Collaboration Board, presents a CMS Gold Award to Professor Boris Gabaraev, General director of N.A. Dollezhal Research and Development Institute of Power Engineering (NIKIET), Moscow, Russia (a.k.a. ENTEK) for the de...

The CMS Beam Halo Monitor electronics

International Nuclear Information System (INIS)

Tosi, N.; Fabbri, F.; Montanari, A.; Torromeo, G.; Dabrowski, A.E.; Orfanelli, S.; Grassi, T.; Hughes, E.; Mans, J.; Rusack, R.; Stifter, K.; Stickland, D.P.

2016-01-01

The CMS Beam Halo Monitor has been successfully installed in the CMS cavern in LHC Long Shutdown 1 for measuring the machine induced background for LHC Run II. The system is based on 40 detector units composed of synthetic quartz Cherenkov radiators coupled to fast photomultiplier tubes (PMTs). The readout electronics chain uses many components developed for the Phase 1 upgrade to the CMS Hadronic Calorimeter electronics, with dedicated firmware and readout adapted to the beam monitoring requirements. The PMT signal is digitized by a charge integrating ASIC (QIE10), providing both the signal rise time, with few nanosecond resolution, and the charge integrated over one bunch crossing. The backend electronics uses microTCA technology and receives data via a high-speed 5 Gbps asynchronous link. It records histograms with sub-bunch crossing timing resolution and is read out via IPbus using the newly designed CMS data acquisition for non-event based data. The data is processed in real time and published to CMS and the LHC, providing online feedback on the beam quality. A dedicated calibration monitoring system has been designed to generate short triggered pulses of light to monitor the efficiency of the system. The electronics has been in operation since the first LHC beams of Run II and has served as the first demonstration of the new QIE10, Microsemi Igloo2 FPGA and high-speed 5 Gbps link with LHC data

42 CFR 403.248 - Administrative review of CMS determinations.

Science.gov (United States)

2010-10-01

... 42 Public Health 2 2010-10-01 2010-10-01 false Administrative review of CMS determinations. 403... Certification Program: General Provisions § 403.248 Administrative review of CMS determinations. (a) This section provides for administrative review if CMS determines— (1) Not to certify a policy; or (2) That a...

Alignment of the CMS Tracker: Latest results from LHC Run-II

CERN Document Server

Mittag, Gregor

2017-01-01

The all-silicon design of the tracking system of the CMS experiment provides excellent measurements of charged-particle tracks and an efficient tagging of jets. Conditions of the CMS tracker changed repeatedly during the 2015/2016 shutdown and the 2016 data-taking period. Still the true position and orientation of each of the 15 148 silicon strip and 1440 silicon pixel modules need to be known with high precision for all intervals. The alignment constants also need to be promptly re-adjusted each time the state of the CMS magnet is changed between 0T and 3.8 T. Latest Run-II results of the CMS tracker alignment and resolution performance are presented, which are obtained using several millions of reconstructed tracks from collision and cosmic-ray data of 2016. The geometries and the resulting performance of physics observables are carefully validated. In addition to the offline alignment, an online procedure has been put in place which continuously monitors movements of the pixel high-level structures and tri...

13th May 2009-Spanish Secretary of State for Research Ministry of Science and Innovation C. Martínez Alonso visiting CMS and ATLAS underground areas with Physics Deputy Department Head L. Alvarez-Gaume.

CERN Multimedia

Maximilien Brice; CERN

2009-01-01

Tirage 1-3; 7-9:C. Alonso, R. Heuer Tirage 4-6:F. Pauss, R. Heuer, C. Alonso, J. Labastida Tirage 10-11:M. Aguilar Benitez, C. Alonso at CMS Tirage 12-13:the delegation and G. Tonelli, counting room Tirage 14-15,17:the delegation and G. Tonelli, CMS underground area Tirage 16:G. Tonelli, C. Alonso, CMS underground area Tirage 18-20:G. Tonelli, C. Alonso, M. Aguilar Benitez, CMS underground area Tirage 21-28 :C. Alonso, R. Heuer, signing the Guest book Tirage 29-36;38-41:the delegation at ATLAS with P. Jenni Tirage 37:J. Aparicio, C. Parajes, J. Labastida, P. Jenni, C. Alonso, L. Alvarez Gaume Tirage 42-43:the delegation and spanish ATLAS collaborators Tirage 44-46: Meeting with spanish scientists at CERN

Search for heavy Majorana neutrinos in Run II and feasibility study of a track-trigger for Phase 2 with the CMS detector at the LHC

CERN Document Server

AUTHOR|(INSPIRE)INSPIRE-00403260; Fanò, Livio; Romeo, Francesco

This thesis intends to present the salient anspects of the research work carried forward in collaboration with the CMS experiment group, during my PhD. The LHC accelerator and CMS detector main features are illustrated in the first chapter. The second chapter regards the CMS tracker subdetector status, performances, and future perspectives. The crucial role of the tracker in the HL(High Luminosity)-LHC era, starting from 2020, is here introduced. Once clarified the technological context and the principles of work of the machines, where the proton collisions take place, and thanks to which the particles can be revealed, a specific data anlysis of the 2015 data collected by CMS will be shown. First, the current state of the searches of new physics, focusing on heavy neutrinos and leptoquarks, is illustrated in chapter 3, where the basis for a new search are provided. An original model is proposed (chapter 4), that leads a new experimental analysis, whose strategy and results are examined in chapter 5. This is a...

Triggering on New Physics with the CMS Detector

Energy Technology Data Exchange (ETDEWEB)

Bose, Tulika [Boston Univ., MA (United States)

2016-07-29

The BU CMS group led by PI Tulika Bose has made several significant contributions to the CMS trigger and to the analysis of the data collected by the CMS experiment. Group members have played a leading role in the optimization of trigger algorithms, the development of trigger menus, and the online operation of the CMS High-Level Trigger. The group’s data analysis projects have concentrated on a broad spectrum of topics that take full advantage of their strengths in jets and calorimetry, trigger, lepton identification as well as their considerable experience in hadron collider physics. Their publications cover several searches for new heavy gauge bosons, vector-like quarks as well as diboson resonances.

CMS Data Processing Workflows during an Extended Cosmic Ray Run

CERN Document Server

Chatrchyan, S; Sirunyan, A M; Adam, W; Arnold, B; Bergauer, H; Bergauer, T; Dragicevic, M; Eichberger, M; Erö, J; Friedl, M; Frühwirth, R; Ghete, V M; Hammer, J; Hänsel, S; Hoch, M; Hörmann, N; Hrubec, J; Jeitler, M; Kasieczka, G; Kastner, K; Krammer, M; Liko, D; Magrans de Abril, I; Mikulec, I; Mittermayr, F; Neuherz, B; Oberegger, M; Padrta, M; Pernicka, M; Rohringer, H; Schmid, S; Schöfbeck, R; Schreiner, T; Stark, R; Steininger, H; Strauss, J; Taurok, A; Teischinger, F; Themel, T; Uhl, D; Wagner, P; Waltenberger, W; Walzel, G; Widl, E; Wulz, C E; Chekhovsky, V; Dvornikov, O; Emeliantchik, I; Litomin, A; Makarenko, V; Marfin, I; Mossolov, V; Shumeiko, N; Solin, A; Stefanovitch, R; Suarez Gonzalez, J; Tikhonov, A; Fedorov, A; Karneyeu, A; Korzhik, M; Panov, V; Zuyeuski, R; Kuchinsky, P; Beaumont, W; Benucci, L; Cardaci, M; De Wolf, E A; Delmeire, E; Druzhkin, D; Hashemi, M; Janssen, X; Maes, T; Mucibello, L; Ochesanu, S; Rougny, R; Selvaggi, M; Van Haevermaet, H; Van Mechelen, P; Van Remortel, N; Adler, V; Beauceron, S; Blyweert, S; D'Hondt, J; De Weirdt, S; Devroede, O; Heyninck, J; Kalogeropoulos, A; Maes, J; Maes, M; Mozer, M U; Tavernier, S; Van Doninck, W; Van Mulders, P; Villella, I; Bouhali, O; Chabert, E C; Charaf, O; Clerbaux, B; De Lentdecker, G; Dero, V; Elgammal, S; Gay, A P R; Hammad, G H; Marage, P E; Rugovac, S; Vander Velde, C; Vanlaer, P; Wickens, J; Grunewald, M; Klein, B; Marinov, A; Ryckbosch, D; Thyssen, F; Tytgat, M; Vanelderen, L; Verwilligen, P; Basegmez, S; Bruno, G; Caudron, J; Delaere, C; Demin, P; Favart, D; Giammanco, A; Grégoire, G; Lemaitre, V; Militaru, O; Ovyn, S; Piotrzkowski, K; Quertenmont, L; Schul, N; Beliy, N; Daubie, E; Alves, G A; Pol, M E; Souza, M H G; Carvalho, W; De Jesus Damiao, D; De Oliveira Martins, C; Fonseca De Souza, S; Mundim, L; Oguri, V; Santoro, A; Silva Do Amaral, S M; Sznajder, A; Fernandez Perez Tomei, T R; Ferreira Dias, M A; Gregores, E M; Novaes, S F; Abadjiev, K; Anguelov, T; Damgov, J; Darmenov, N; Dimitrov, L; Genchev, V; Iaydjiev, P; Piperov, S; Stoykova, S; Sultanov, G; Trayanov, R; Vankov, I; Dimitrov, A; Dyulendarova, M; Kozhuharov, V; Litov, L; Marinova, E; Mateev, M; Pavlov, B; Petkov, P; Toteva, Z; Chen, G M; Chen, H S; Guan, W; Jiang, C H; Liang, D; Liu, B; Meng, X; Tao, J; Wang, J; Wang, Z; Xue, Z; Zhang, Z; Ban, Y; Cai, J; Ge, Y; Guo, S; Hu, Z; Mao, Y; Qian, S J; Teng, H; Zhu, B; Avila, C; Baquero Ruiz, M; Carrillo Montoya, C A; Gomez, A; Gomez Moreno, B; Ocampo Rios, A A; Osorio Oliveros, A F; Reyes Romero, D; Sanabria, J C; Godinovic, N; Lelas, K; Plestina, R; Polic, D; Puljak, I; Antunovic, Z; Dzelalija, M; Brigljevic, V; Duric, S; Kadija, K; Morovic, S; Fereos, R; Galanti, M; Mousa, J; Papadakis, A; Ptochos, F; Razis, P A; Tsiakkouri, D; Zinonos, Z; Hektor, A; Kadastik, M; Kannike, K; Müntel, M; Raidal, M; Rebane, L; Anttila, E; Czellar, S; Härkönen, J; Heikkinen, A; Karimäki, V; Kinnunen, R; Klem, J; Kortelainen, M J; Lampén, T; Lassila-Perini, K; Lehti, S; Lindén, T; Luukka, P; Mäenpää, T; Nysten, J; Tuominen, E; Tuominiemi, J; Ungaro, D; Wendland, L; Banzuzi, K; Korpela, A; Tuuva, T; Nedelec, P; Sillou, D; Besancon, M; Chipaux, R; Dejardin, M; Denegri, D; Descamps, J; Fabbro, B; Faure, J L; Ferri, F; Ganjour, S; Gentit, F X; Givernaud, A; Gras, P; Hamel de Monchenault, G; Jarry, P; Lemaire, M C; Locci, E; Malcles, J; Marionneau, M; Millischer, L; Rander, J; Rosowsky, A; Rousseau, D; Titov, M; Verrecchia, P; Baffioni, S; Bianchini, L; Bluj, M; Busson, P; Charlot, C; Dobrzynski, L; Granier de Cassagnac, R; Haguenauer, M; Miné, P; Paganini, P; Sirois, Y; Thiebaux, C; Zabi, A; Agram, J L; Besson, A; Bloch, D; Bodin, D; Brom, J M; Conte, E; Drouhin, F; Fontaine, J C; Gelé, D; Goerlach, U; Gross, L; Juillot, P; Le Bihan, A C; Patois, Y; Speck, J; Van Hove, P; Baty, C; Bedjidian, M; Blaha, J; Boudoul, G; Brun, H; Chanon, N; Chierici, R; Contardo, D; Depasse, P; Dupasquier, T; El Mamouni, H; Fassi, F; Fay, J; Gascon, S; Ille, B; Kurca, T; Le Grand, T; Lethuillier, M; Lumb, N; Mirabito, L; Perries, S; Vander Donckt, M; Verdier, P; Djaoshvili, N; Roinishvili, N; Roinishvili, V; Amaglobeli, N; Adolphi, R; Anagnostou, G; Brauer, R; Braunschweig, W; Edelhoff, M; Esser, H; Feld, L; Karpinski, W; Khomich, A; Klein, K; Mohr, N; Ostaptchouk, A; Pandoulas, D; Pierschel, G; Raupach, F; Schael, S; Schultz von Dratzig, A; Schwering, G; Sprenger, D; Thomas, M; Weber, M; Wittmer, B; Wlochal, M; Actis, O; Altenhöfer, G; Bender, W; Biallass, P; Erdmann, M; Fetchenhauer, G; Frangenheim, J; Hebbeker, T; Hilgers, G; Hinzmann, A; Hoepfner, K; Hof, C; Kirsch, M; Klimkovich, T; Kreuzer, P; Lanske, D; Merschmeyer, M; Meyer, A; Philipps, B; Pieta, H; Reithler, H; Schmitz, S A; Sonnenschein, L; Sowa, M; Steggemann, J; Szczesny, H; Teyssier, D; Zeidler, C; Bontenackels, M; Davids, M; Duda, M; Flügge, G; Geenen, H; Giffels, M; Haj Ahmad, W; Hermanns, T; Heydhausen, D; Kalinin, S; Kress, T; Linn, A; Nowack, A; Perchalla, L; Poettgens, M; Pooth, O; Sauerland, P; Stahl, A; Tornier, D; Zoeller, M H; Aldaya Martin, M; Behrens, U; Borras, K; Campbell, A; Castro, E; Dammann, D; Eckerlin, G; Flossdorf, A; Flucke, G; Geiser, A; Hatton, D; Hauk, J; Jung, H; Kasemann, M; Katkov, I; Kleinwort, C; Kluge, H; Knutsson, A; Kuznetsova, E; Lange, W; Lohmann, W; Mankel, R; Marienfeld, M; Meyer, A B; Miglioranzi, S; Mnich, J; Ohlerich, M; Olzem, J; Parenti, A; Rosemann, C; Schmidt, R; Schoerner-Sadenius, T; Volyanskyy, D; Wissing, C; Zeuner, W D; Autermann, C; Bechtel, F; Draeger, J; Eckstein, D; Gebbert, U; Kaschube, K; Kaussen, G; Klanner, R; Mura, B; Naumann-Emme, S; Nowak, F; Pein, U; Sander, C; Schleper, P; Schum, T; Stadie, H; Steinbrück, G; Thomsen, J; Wolf, R; Bauer, J; Blüm, P; Buege, V; Cakir, A; Chwalek, T; De Boer, W; Dierlamm, A; Dirkes, G; Feindt, M; Felzmann, U; Frey, M; Furgeri, A; Gruschke, J; Hackstein, C; Hartmann, F; Heier, S; Heinrich, M; Held, H; Hirschbuehl, D; Hoffmann, K H; Honc, S; Jung, C; Kuhr, T; Liamsuwan, T; Martschei, D; Mueller, S; Müller, Th; Neuland, M B; Niegel, M; Oberst, O; Oehler, A; Ott, J; Peiffer, T; Piparo, D; Quast, G; Rabbertz, K; Ratnikov, F; Ratnikova, N; Renz, M; Saout, C; Sartisohn, G; Scheurer, A; Schieferdecker, P; Schilling, F P; Schott, G; Simonis, H J; Stober, F M; Sturm, P; Troendle, D; Trunov, A; Wagner, W; Wagner-Kuhr, J; Zeise, M; Zhukov, V; Ziebarth, E B; Daskalakis, G; Geralis, T; Karafasoulis, K; Kyriakis, A; Loukas, D; Markou, A; Markou, C; Mavrommatis, C; Petrakou, E; Zachariadou, A; Gouskos, L; Katsas, P; Panagiotou, A; Evangelou, I; Kokkas, P; Manthos, N; Papadopoulos, I; Patras, V; Triantis, F A; Bencze, G; Boldizsar, L; Debreczeni, G; Hajdu, C; Hernath, S; Hidas, P; Horvath, D; Krajczar, K; Laszlo, A; Patay, G; Sikler, F; Toth, N; Vesztergombi, G; Beni, N; Christian, G; Imrek, J; Molnar, J; Novak, D; Palinkas, J; Szekely, G; Szillasi, Z; Tokesi, K; Veszpremi, V; Kapusi, A; Marian, G; Raics, P; Szabo, Z; Trocsanyi, Z L; Ujvari, B; Zilizi, G; Bansal, S; Bawa, H S; Beri, S B; Bhatnagar, V; Jindal, M; Kaur, M; Kaur, R; Kohli, J M; Mehta, M Z; Nishu, N; Saini, L K; Sharma, A; Singh, A; Singh, J B; Singh, S P; Ahuja, S; Arora, S; Bhattacharya, S; Chauhan, S; Choudhary, B C; Gupta, P; Jain, S; Jha, M; Kumar, A; Ranjan, K; Shivpuri, R K; Srivastava, A K; Choudhury, R K; Dutta, D; Kailas, S; Kataria, S K; Mohanty, A K; Pant, L M; Shukla, P; Topkar, A; Aziz, T; Guchait, M; Gurtu, A; Maity, M; Majumder, D; Majumder, G; Mazumdar, K; Nayak, A; Saha, A; Sudhakar, K; Banerjee, S; Dugad, S; Mondal, N K; Arfaei, H; Bakhshiansohi, H; Fahim, A; Jafari, A; Mohammadi Najafabadi, M; Moshaii, A; Paktinat Mehdiabadi, S; Rouhani, S; Safarzadeh, B; Zeinali, M; Felcini, M; Abbrescia, M; Barbone, L; Chiumarulo, F; Clemente, A; Colaleo, A; Creanza, D; Cuscela, G; De Filippis, N; De Palma, M; De Robertis, G; Donvito, G; Fedele, F; Fiore, L; Franco, M; Iaselli, G; Lacalamita, N; Loddo, F; Lusito, L; Maggi, G; Maggi, M; Manna, N; Marangelli, B; My, S; Natali, S; Nuzzo, S; Papagni, G; Piccolomo, S; Pierro, G A; Pinto, C; Pompili, A; Pugliese, G; Rajan, R; Ranieri, A; Romano, F; Roselli, G; Selvaggi, G; Shinde, Y; Silvestris, L; Tupputi, S; Zito, G; Abbiendi, G; Bacchi, W; Benvenuti, A C; Boldini, M; Bonacorsi, D; Braibant-Giacomelli, S; Cafaro, V D; Caiazza, S S; Capiluppi, P; Castro, A; Cavallo, F R; Codispoti, G; Cuffiani, M; D'Antone, I; Dallavalle, G M; Fabbri, F; Fanfani, A; Fasanella, D; Giacomelli, P; Giordano, V; Giunta, M; Grandi, C; Guerzoni, M; Marcellini, S; Masetti, G; Montanari, A; Navarria, F L; Odorici, F; Pellegrini, G; Perrotta, A; Rossi, A M; Rovelli, T; Siroli, G; Torromeo, G; Travaglini, R; Albergo, S; Costa, S; Potenza, R; Tricomi, A; Tuve, C; Barbagli, G; Broccolo, G; Ciulli, V; Civinini, C; D'Alessandro, R; Focardi, E; Frosali, S; Gallo, E; Genta, C; Landi, G; Lenzi, P; Meschini, M; Paoletti, S; Sguazzoni, G; Tropiano, A; Benussi, L; Bertani, M; Bianco, S; Colafranceschi, S; Colonna, D; Fabbri, F; Giardoni, M; Passamonti, L; Piccolo, D; Pierluigi, D; Ponzio, B; Russo, A; Fabbricatore, P; Musenich, R; Benaglia, A; Calloni, M; Cerati, G B; D'Angelo, P; De Guio, F; Farina, F M; Ghezzi, A; Govoni, P; Malberti, M; Malvezzi, S; Martelli, A; Menasce, D; Miccio, V; Moroni, L; Negri, P; Paganoni, M; Pedrini, D; Pullia, A; Ragazzi, S; Redaelli, N; Sala, S; Salerno, R; Tabarelli de Fatis, T; Tancini, V; Taroni, S; Buontempo, S; Cavallo, N; Cimmino, A; De Gruttola, M; Fabozzi, F; Iorio, A O M; Lista, L; Lomidze, D; Noli, P; Paolucci, P; Sciacca, C; Azzi, P; Bacchetta, N; Barcellan, L; Bellan, P; Bellato, M; Benettoni, M; Biasotto, M; Bisello, D; Borsato, E; Branca, A; Carlin, R; Castellani, L; Checchia, P; Conti, E; Dal Corso, F; De Mattia, M; Dorigo, T; Dosselli, U; Fanzago, F; Gasparini, F; Gasparini, U; Giubilato, P; Gonella, F; Gresele, A; Gulmini, M; Kaminskiy, A; Lacaprara, S; Lazzizzera, I; Margoni, M; Maron, G; Mattiazzo, S; Mazzucato, M; Meneghelli, M; Meneguzzo, A T; Michelotto, M; Montecassiano, F; Nespolo, M; Passaseo, M; Pegoraro, M; Perrozzi, L; Pozzobon, N; Ronchese, P; Simonetto, F; Toniolo, N; Torassa, E; Tosi, M; Triossi, A; Vanini, S; Ventura, S; Zotto, P; Zumerle, G; Baesso, P; Berzano, U; Bricola, S; Necchi, M M; Pagano, D; Ratti, S P; Riccardi, C; Torre, P; Vicini, A; Vitulo, P; Viviani, C; Aisa, D; Aisa, S; Babucci, E; Biasini, M; Bilei, G M; Caponeri, B; Checcucci, B; Dinu, N; Fanò, L; Farnesini, L; Lariccia, P; Lucaroni, A; Mantovani, G; Nappi, A; Piluso, A; Postolache, V; Santocchia, A; Servoli, L; Tonoiu, D; Vedaee, A; Volpe, R; Azzurri, P; Bagliesi, G; Bernardini, J; Berretta, L; Boccali, T; Bocci, A; Borrello, L; Bosi, F; Calzolari, F; Castaldi, R; Dell'Orso, R; Fiori, F; Foà, L; Gennai, S; Giassi, A; Kraan, A; Ligabue, F; Lomtadze, T; Mariani, F; Martini, L; Massa, M; Messineo, A; Moggi, A; Palla, F; Palmonari, F; Petragnani, G; Petrucciani, G; Raffaelli, F; Sarkar, S; Segneri, G; Serban, A T; Spagnolo, P; Tenchini, R; Tolaini, S; Tonelli, G; Venturi, A; Verdini, P G; Baccaro, S; Barone, L; Bartoloni, A; Cavallari, F; Dafinei, I; Del Re, D; Di Marco, E; Diemoz, M; Franci, D; Longo, E; Organtini, G; Palma, A; Pandolfi, F; Paramatti, R; Pellegrino, F; Rahatlou, S; Rovelli, C; Alampi, G; Amapane, N; Arcidiacono, R; Argiro, S; Arneodo, M; Biino, C; Borgia, M A; Botta, C; Cartiglia, N; Castello, R; Cerminara, G; Costa, M; Dattola, D; Dellacasa, G; Demaria, N; Dughera, G; Dumitrache, F; Graziano, A; Mariotti, C; Marone, M; Maselli, S; Migliore, E; Mila, G; Monaco, V; Musich, M; Nervo, M; Obertino, M M; Oggero, S; Panero, R; Pastrone, N; Pelliccioni, M; Romero, A; Ruspa, M; Sacchi, R; Solano, A; Staiano, A; Trapani, P P; Trocino, D; Vilela Pereira, A; Visca, L; Zampieri, A; Ambroglini, F; Belforte, S; Cossutti, F; Della Ricca, G; Gobbo, B; Penzo, A; Chang, S; Chung, J; Kim, D H; Kim, G N; Kong, D J; Park, H; Son, D C; Bahk, S Y; Song, S; Jung, S Y; Hong, B; Kim, H; Kim, J H; Lee, K S; Moon, D H; Park, S K; Rhee, H B; Sim, K S; Kim, J; Choi, M; Hahn, G; Park, I C; Choi, S; Choi, Y; Goh, J; Jeong, H; Kim, T J; Lee, J; Lee, S; Janulis, M; Martisiute, D; Petrov, P; Sabonis, T; Castilla Valdez, H; Sánchez Hernández, A; Carrillo Moreno, S; Morelos Pineda, A; Allfrey, P; Gray, R N C; Krofcheck, D; Bernardino Rodrigues, N; Butler, P H; Signal, T; Williams, J C; Ahmad, M; Ahmed, I; Ahmed, W; Asghar, M I; Awan, M I M; Hoorani, H R; Hussain, I; Khan, W A; Khurshid, T; Muhammad, S; Qazi, S; Shahzad, H; Cwiok, M; Dabrowski, R; Dominik, W; Doroba, K; Konecki, M; Krolikowski, J; Pozniak, K; Romaniuk, Ryszard; Zabolotny, W; Zych, P; Frueboes, T; Gokieli, R; Goscilo, L; Górski, M; Kazana, M; Nawrocki, K; Szleper, M; Wrochna, G; Zalewski, P; Almeida, N; Antunes Pedro, L; Bargassa, P; David, A; Faccioli, P; Ferreira Parracho, P G; Freitas Ferreira, M; Gallinaro, M; Guerra Jordao, M; Martins, P; Mini, G; Musella, P; Pela, J; Raposo, L; Ribeiro, P Q; Sampaio, S; Seixas, J; Silva, J; Silva, P; Soares, D; Sousa, M; Varela, J; Wöhri, H K; Altsybeev, I; Belotelov, I; Bunin, P; Ershov, Y; Filozova, I; Finger, M; Finger, M., Jr.; Golunov, A; Golutvin, I; Gorbounov, N; Kalagin, V; Kamenev, A; Karjavin, V; Konoplyanikov, V; Korenkov, V; Kozlov, G; Kurenkov, A; Lanev, A; Makankin, A; Mitsyn, V V; Moisenz, P; Nikonov, E; Oleynik, D; Palichik, V; Perelygin, V; Petrosyan, A; Semenov, R; Shmatov, S; Smirnov, V; Smolin, D; Tikhonenko, E; Vasil'ev, S; Vishnevskiy, A; Volodko, A; Zarubin, A; Zhiltsov, V; Bondar, N; Chtchipounov, L; Denisov, A; Gavrikov, Y; Gavrilov, G; Golovtsov, V; Ivanov, Y; Kim, V; Kozlov, V; Levchenko, P; Obrant, G; Orishchin, E; Petrunin, A; Shcheglov, Y; Shchetkovskiy, A; Sknar, V; Smirnov, I; Sulimov, V; Tarakanov, V; Uvarov, L; Vavilov, S; Velichko, G; Volkov, S; Vorobyev, A; Andreev, Yu; Anisimov, A; Antipov, P; Dermenev, A; Gninenko, S; Golubev, N; Kirsanov, M; Krasnikov, N; Matveev, V; Pashenkov, A; Postoev, V E; Solovey, A; Toropin, A; Troitsky, S; Baud, A; Epshteyn, V; Gavrilov, V; Ilina, N; Kaftanov, V; Kolosov, V; Kossov, M; Krokhotin, A; Kuleshov, S; Oulianov, A; Safronov, G; Semenov, S; Shreyber, I; Stolin, V; Vlasov, E; Zhokin, A; Boos, E; Dubinin, M; Dudko, L; Ershov, A; Gribushin, A; Klyukhin, V; Kodolova, O; Lokhtin, I; Petrushanko, S; Sarycheva, L; Savrin, V; Snigirev, A; Vardanyan, I; Dremin, I; Kirakosyan, M; Konovalova, N; Rusakov, S V; Vinogradov, A; Akimenko, S; Artamonov, A; Azhgirey, I; Bitioukov, S; Burtovoy, V; Grishin, V; Kachanov, V; Konstantinov, D; Krychkine, V; Levine, A; Lobov, I; Lukanin, V; Mel'nik, Y; Petrov, V; Ryutin, R; Slabospitsky, S; Sobol, A; Sytine, A; Tourtchanovitch, L; Troshin, S; Tyurin, N; Uzunian, A; Volkov, A; Adzic, P; Djordjevic, M; Jovanovic, D; Krpic, D; Maletic, D; Puzovic, J; Smiljkovic, N; Aguilar-Benitez, M; Alberdi, J; Alcaraz Maestre, J; Arce, P; Barcala, J M; Battilana, C; Burgos Lazaro, C; Caballero Bejar, J; Calvo, E; Cardenas Montes, M; Cepeda, M; Cerrada, M; Chamizo Llatas, M; Clemente, F; Colino, N; Daniel, M; De La Cruz, B; Delgado Peris, A; Diez Pardos, C; Fernandez Bedoya, C; Fernández Ramos, J P; Ferrando, A; Flix, J; Fouz, M C; Garcia-Abia, P; Garcia-Bonilla, A C; 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2010-01-01

The CMS Collaboration conducted a month-long data taking exercise, the Cosmic Run At Four Tesla, during October-November 2008, with the goal of commissioning the experiment for extended operation. With all installed detector systems participating, CMS recorded 270 million cosmic ray events with the solenoid at a magnetic field strength of 3.8 T. This paper describes the data flow from the detector through the various online and offline computing systems, as well as the workflows used for recording the data, for aligning and calibrating the detector, and for analysis of the data.

CMS Data Processing Workflows during an Extended Cosmic Ray Run

Energy Technology Data Exchange (ETDEWEB)

2009-11-01

The CMS Collaboration conducted a month-long data taking exercise, the Cosmic Run At Four Tesla, during October-November 2008, with the goal of commissioning the experiment for extended operation. With all installed detector systems participating, CMS recorded 270 million cosmic ray events with the solenoid at a magnetic field strength of 3.8 T. This paper describes the data flow from the detector through the various online and offline computing systems, as well as the workflows used for recording the data, for aligning and calibrating the detector, and for analysis of the data.

3D asthenopia in horizontal deviation.

Science.gov (United States)

Kim, Seung-Hyun; Suh, Young-Woo; Yun, Cheol-Min; Yoo, Eun-Joo; Yeom, Ji-Hyun; Cho, Yoonae A

2013-05-01

This study was conducted to investigate the asthenopic symptoms in patients with exotropia and esotropia while watching stereoscopic 3D (S3D) television (TV). A total 77 subjects who more than 9 years of age were enrolled in this study. We divided them into three groups; Thirty-four patients with exodeviation (Exo group), 11 patients with esodeviation (Eso group) and 32 volunteers with normal binocular vision (control group). The S3D images were shown to all patients with S3D high-definition TV for a period of 20 min. Best corrected visual acuity, refractive errors, angle of strabismus, stereopsis test and history of strabismus surgery, were evaluated. After watching S3D TV for 20 min, a survey of subjective symptoms was conducted with a questionnaire to evaluate the degree of S3D perception and asthenopic symptoms such as headache, dizziness and ocular fatigue while watching 3D TV. The mean amounts of deviation in the Exo group and Eso group were 11.2 PD and 7.73PD, respectively. Mean stereoacuity was 102.7 arc sec in the the Exo group and 1389.1 arc sec in the Eso group. In the control group, it was 41.9 arc sec. Twenty-nine patients in the Exo group showed excellent stereopsis (≤60 arc sec at near), but all 11 subjects of the Eso group showed 140 arc sec or worse and showed more decreased 3D perception than the Exo and the control group (p Kruskal-Wallis test). The Exo group reported more eye fatigue (p Kruskal-Wallis test) than the Eso and the control group. However, the scores of ocular fatigue in the patients who had undergone corrective surgery were less than in the patients who had not in the Exo group (p Kruskal-Wallis test) and the amount of exodeviation was not correlated with the asthenopic symptoms (dizziness, r = 0.034, p = 0.33; headache, r = 0.320, p = 0.119; eye fatigue, r = 0.135, p = 0.519, Spearman rank correlation test, respectively). Symptoms of 3D asthenopia were related to the presence of exodeviation but not to esodeviation. This may

42 CFR 457.1003 - CMS review of waiver requests.

Science.gov (United States)

2010-10-01

... 42 Public Health 4 2010-10-01 2010-10-01 false CMS review of waiver requests. 457.1003 Section 457.1003 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES... Waivers: General Provisions § 457.1003 CMS review of waiver requests. CMS will review the waiver requests...

A browser-based event display for the CMS experiment at the LHC

International Nuclear Information System (INIS)

Hategan, M; McCauley, T; Nguyen, P

2012-01-01

The line between native and web applications is becoming increasingly blurred as modern web browsers are becoming powerful platforms on which applications can be run. Such applications are trivial to install and are readily extensible and easy to use. In an educational setting, web applications permit a way to deploy deploy tools in a highly-restrictive computing environment. The I2U2 collaboration has developed a browser-based event display for viewing events in data collected and released to the public by the CMS experiment at the LHC. The application itself reads a JSON event format and uses the JavaScript 3D rendering engine pre3d. The only requirement is a modern browser using HTML5 canvas. The event display has been used by thousands of high school students in the context of programs organized by I2U2, QuarkNet, and IPPOG. This browser-based approach to display of events can have broader usage and impact for experts and public alike.

Reception Test of Petals for the End Cap TEC+ of the CMS Silicon Strip Tracker

CERN Document Server

Bremer, R; Klein, Katja; Schmitz, Stefan Antonius; Adler, Volker; Adolphi, Roman; Ageron, Michel; Agram, Jean-Laurent; Atz, Bernd; Barvich, Tobias; Baulieu, Guillaume; Beaumont, Willem; Beissel, Franz; Bergauer, Thomas; Berst, Jean-Daniel; Blüm, Peter; Bock, E; Bogelsbacher, F; de Boer, Wim; Bonnet, Jean-Luc; Bonnevaux, Alain; Boudoul, Gaelle; Bouhali, Othmane; Braunschweig, Wolfgang; Brom, Jean-Marie; Butz, Erik; Chabanat, Eric; Chabert, Eric Christian; Clerbaux, Barbara; Contardo, Didier; De Callatay, Bernard; Dehm, Philip; Delaere, Christophe; Della Negra, Rodolphe; Dewulf, Jean-Paul; D'Hondt, Jorgen; Didierjean, Francois; Dierlamm, Alexander; Dirkes, Guido; Dragicevic, Marko; Drouhin, Frédéric; Ernenwein, Jean-Pierre; Esser, Hans; Estre, Nicolas; Fahrer, Manuel; Fernández, J; Florins, Benoit; Flossdorf, Alexander; Flucke, Gero; Flügge, Günter; Fontaine, Jean-Charles; Freudenreich, Klaus; Frey, Martin; Friedl, Markus; Furgeri, Alexander; Giraud, Noël; Goerlach, Ulrich; Goorens, Robert; Graehling, Philippe; Grégoire, Ghislain; Gregoriev, E; Gross, Laurent; Hansel, S; Haroutunian, Roger; Hartmann, Frank; Heier, Stefan; Hermanns, Thomas; Heydhausen, Dirk; Heyninck, Jan; Hosselet, J; Hrubec, Josef; Jahn, Dieter; Juillot, Pierre; Kaminski, Jochen; Karpinski, Waclaw; Kaussen, Gordon; Keutgen, Thomas; Klanner, Robert; König, Stefan; Kosbow, M; Krammer, Manfred; Ledermann, Bernhard; Lemaître, Vincent; De Lentdecker, Gilles; Linn, Alexander; Lounis, Abdenour; Lübelsmeyer, Klaus; Lumb, Nicholas; Maazouzi, Chaker; Mahmoud, Tariq; Michotte, Daniel; Militaru, Otilia; Mirabito, Laurent; Müller, Thomas; Neukermans, Lionel; Ollivetto, C; Olzem, Jan; Ostapchuk, Andrey; Pandoulas, Demetrios; Pein, Uwe; Pernicka, Manfred; Perriès, Stephane; Piaseki, C; Pierschel, Gerhard; Piotrzkowski, Krzysztof; Poettgens, Michael; Pooth, Oliver; Rouby, Xavier; Sabellek, Andreas; Schael, Stefan; Schirm, Norbert; Schleper, Peter; Schultz von Dratzig, Arndt; Siedling, Rolf; Simonis, Hans-Jürgen; Stahl, Achim; Steck, Pia; Steinbruck, G; Stoye, Markus; Strub, Roger; Tavernier, Stefaan; Teyssier, Daniel; Theel, Andreas; Trocmé, Benjamin; Udo, Fred; Van der Donckt, M; Van der Velde, C; Van Hove, Pierre; Vanlaer, Pascal; Van Lancker, Luc; Van Staa, Rolf; Vanzetto, Sylvain; Weber, Markus; Weiler, Thomas; Weseler, Siegfried; Wickens, John; Wittmer, Bruno; Wlochal, Michael; De Wolf, Eddi A; Zhukov, Valery; Zoeller, Marc Henning

2009-01-01

The silicon strip tracker of the CMS experiment has been completed and was inserted into the CMS detector in late 2007. The largest sub system of the tracker are its end caps, comprising two large end caps (TEC) each containing 3200 silicon strip modules. To ease construction, the end caps feature a modular design: groups of about 20 silicon modules are placed on sub-assemblies called petals and these self-contained elements are then mounted onto the TEC support structures. Each end cap consists of 144 such petals, which were built and fully qualified by several institutes across Europe. From

Xenon-Xenon collision events in CMS

CERN Multimedia

Mc Cauley, Thomas

2017-01-01

One of the first-ever xenon-xenon collision events recorded by CMS during the LHC’s one-day-only heavy-ion run with xenon nuclei. The large number of tracks emerging from the centre of the detector show the many simultaneous nucleon-nucleon interactions that take place when two xenon nuclei, each with 54 protons and 75 neutrons, collide inside CMS.

CMS standard model Higgs boson results

Directory of Open Access Journals (Sweden)

Garcia-Abia Pablo

2013-11-01

Full Text Available In July 2012 CMS announced the discovery of a new boson with properties resembling those of the long-sought Higgs boson. The analysis of the proton-proton collision data recorded by the CMS detector at the LHC, corresponding to integrated luminosities of 5.1 fb−1 at √s = 7 TeV and 19.6 fb−1 at √s = 8 TeV, confirm the Higgs-like nature of the new boson, with a signal strength associated with vector bosons and fermions consistent with the expectations for a standard model (SM Higgs boson, and spin-parity clearly favouring the scalar nature of the new boson. In this note I review the updated results of the CMS experiment.

Vitamin D3 supplementation does not modify cardiovascular risk profile of adults with inadequate vitamin D status.

Science.gov (United States)

Seibert, Eric; Lehmann, Ulrike; Riedel, Annett; Ulrich, Christof; Hirche, Frank; Brandsch, Corinna; Dierkes, Jutta; Girndt, Matthias; Stangl, Gabriele I

2017-03-01

The Nutrition Societies in Germany, Austria, and Switzerland recommend a daily intake of 20 µg vitamin D 3 for adults when endogenous synthesis is absent. The current study aimed to elucidate whether this vitamin D 3 dose impacts cardiovascular risk markers of adults during the winter months. The study was conducted in Halle (Saale), Germany (51 o northern latitude) as a placebo-controlled, double-blinded, randomised trial (from January to April). A total of 105 apparently healthy subjects (male and female, 20-71 years old) were included. Subjects were randomly allocated to two groups. One group received a daily 20-µg vitamin D 3 dose (n = 54), and the other group received a placebo (n = 51) for 12 weeks. Outcome measures included blood pressure, heart rate, concentrations of renin, aldosterone, serum lipids and vascular calcification markers, and haematologic variables such as pro-inflammatory monocytes. Blood pressure and systemic cardiovascular risk markers remained unchanged by vitamin D 3 supplementation, although serum 25-hydroxyvitamin D 3 increased from 38 ± 14 to 73 ± 16 nmol/L at week 12. The placebo and vitamin D groups did not differ in their final cardiovascular risk profile. Daily supplementation of 20 µg vitamin D 3 during winter is unlikely to change cardiovascular risk profile.

42 CFR 411.386 - CMS's advisory opinions as exclusive.

Science.gov (United States)

2010-10-01

... 42 Public Health 2 2010-10-01 2010-10-01 false CMS's advisory opinions as exclusive. 411.386... Relationships Between Physicians and Entities Furnishing Designated Health Services § 411.386 CMS's advisory... described in § 411.370. CMS has not and does not issue a binding advisory opinion on the subject matter in...

CMS Financial Reports

Data.gov (United States)

U.S. Department of Health & Human Services — This section contains the annual CMS financial statements as required under the Chief Financial Officers (CFO) Act of 1990 (P.L. 101-576). The CFO Act marked a major...

CMS fact sheet : to give an overview of the basic facts on the CMS Detector, its aims and collaboration

CERN Multimedia

CMS, Outreach

2010-01-01

2-sided color print A4 size sheet containing the facts on the CMS Detector, its name, what it is designed to do, questions scientists hope to answer, collaboration members, detector parts and their functions, and other miscellaneous facts on the CMS detector

The CMS Integration Grid Testbed

CERN Document Server

Graham, G E; Aziz, Shafqat; Bauerdick, L.A.T.; Ernst, Michael; Kaiser, Joseph; Ratnikova, Natalia; Wenzel, Hans; Wu, Yu-jun; Aslakson, Erik; Bunn, Julian; Iqbal, Saima; Legrand, Iosif; Newman, Harvey; Singh, Suresh; Steenberg, Conrad; Branson, James; Fisk, Ian; Letts, James; Arbree, Adam; Avery, Paul; Bourilkov, Dimitri; Cavanaugh, Richard; Rodriguez, Jorge Luis; Kategari, Suchindra; Couvares, Peter; DeSmet, Alan; Livny, Miron; Roy, Alain; Tannenbaum, Todd; Graham, Gregory E.; Aziz, Shafqat; Ernst, Michael; Kaiser, Joseph; Ratnikova, Natalia; Wenzel, Hans; Wu, Yujun; Aslakson, Erik; Bunn, Julian; Iqbal, Saima; Legrand, Iosif; Newman, Harvey; Singh, Suresh; Steenberg, Conrad; Branson, James; Fisk, Ian; Letts, James; Arbree, Adam; Avery, Paul; Bourilkov, Dimitri; Cavanaugh, Richard; Rodriguez, Jorge; Kategari, Suchindra; Couvares, Peter; Smet, Alan De; Livny, Miron; Roy, Alain; Tannenbaum, Todd

2003-01-01

The CMS Integration Grid Testbed (IGT) comprises USCMS Tier-1 and Tier-2 hardware at the following sites: the California Institute of Technology, Fermi National Accelerator Laboratory, the University of California at San Diego, and the University of Florida at Gainesville. The IGT runs jobs using the Globus Toolkit with a DAGMan and Condor-G front end. The virtual organization (VO) is managed using VO management scripts from the European Data Grid (EDG). Gridwide monitoring is accomplished using local tools such as Ganglia interfaced into the Globus Metadata Directory Service (MDS) and the agent based Mona Lisa. Domain specific software is packaged and installed using the Distrib ution After Release (DAR) tool of CMS, while middleware under the auspices of the Virtual Data Toolkit (VDT) is distributed using Pacman. During a continuo us two month span in Fall of 2002, over 1 million official CMS GEANT based Monte Carlo events were generated and returned to CERN for analysis while being demonstrated at SC2002. ...

CMS results in Electroweak Physics

CERN Multimedia

CERN. Geneva

2011-01-01

We present the results of electroweak studies performed using data collected in 2010 at a center-of-mass energy of 7 TeV by the CMS experiment at the LHC. Besides their intrinsic interest as unique samples to calibrate and understand the CMS detector response to leptons, jets and missing energy, events containing W and Z bosons appear as dominant components in many Higgs seaches and in most of the searches beyond the Standard Model, either as signal or as background. In addition, the excellent level of theoretical and experimental understanding of these processes allows electroweak tests at the LHC at an unprecendented level of precision. CMS uses a wide range of final states to measure cross sections, asymmetries, polarizations and differential distributions in general. The current integrated luminosity is already sufficient to perform not just inclusive measurements using W and Z decays into muons and electrons, but also precise studies of associated jet production and final states containing taus, as well...

42 CFR 405.2440 - Conditions for reinstatement after termination by CMS.

Science.gov (United States)

2010-10-01

... CMS. 405.2440 Section 405.2440 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF... § 405.2440 Conditions for reinstatement after termination by CMS. When CMS has terminated an agreement with a Federally qualified health center, CMS will not enter into another agreement with the Federally...

Underreporting of nursing home utilization on the CMS-2728 in older incident dialysis patients and implications for assessing mortality risk.

Science.gov (United States)

Bowling, C Barrett; Zhang, Rebecca; Franch, Harold; Huang, Yijian; Mirk, Anna; McClellan, William M; Johnson, Theodore M; Kutner, Nancy G

2015-03-21

The usage of nursing home (NH) services is a marker of frailty among older adults. Although the Centers for Medicare & Medicaid Services (CMS) revised the Medical Evidence Report Form CMS-2728 in 2005 to include data collection on NH institutionalization, the validity of this item has not been reported. There were 27,913 patients ≥ 75 years of age with incident end-stage renal disease (ESRD) in 2006, which constituted our analysis cohort. We determined the accuracy of the CMS-2728 using a matched cohort that included the CMS Minimum Data Set (MDS) 2.0, often employed as a "gold standard" metric for identifying patients receiving NH care. We calculated sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) for the CMS-2728 NH item. Next, we compared characteristics and mortality risk by CMS-2728 and MDS NH status agreement. The sensitivity, specificity, PPV and NPV of the CMS-2728 for NH status were 33%, 97%, 80% and 79%, respectively. Compared to those without the MDS or CMS-2728 NH indicator (No MDS/No 2728), multivariable adjusted hazard ratios (95% confidence interval) for mortality associated with NH status were 1.55 (1.46 - 1.64) for MDS/2728, 1.48 (1.42 - 1.54) for MDS/No 2728, and 1.38 (1.25 - 1.52) for No MDS/2728. NH utilization was more strongly associated with mortality than other CMS-2728 items in the model. The CMS-2728 underestimated NH utilization among older adults with incident ESRD. The potential for misclassification may have important ramifications for assessing prognosis, developing advanced care plans and providing coordinated care.

The CMS Masterclass and Particle Physics Outreach

Energy Technology Data Exchange (ETDEWEB)

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

2014-01-01

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

CMS conditions data access using FroNTier

International Nuclear Information System (INIS)

Blumenfeld, Barry; Johns Hopkins U.; Dykstra, David; Lueking, Lee; Wicklund, Eric; Fermilab

2007-01-01

The CMS experiment at the LHC has established an infrastructure using the FroNTier framework to deliver conditions (i.e. calibration, alignment, etc.) data to processing clients worldwide. FroNTier is a simple web service approach providing client HTTP access to a central database service. The system for CMS has been developed to work with POOL which provides object relational mapping between the C++ clients and various database technologies. Because of the read only nature of the data, Squid proxy caching servers are maintained near clients and these caches provide high performance data access. Several features have been developed to make the system meet the needs of CMS including careful attention to cache coherency with the central database, and low latency loading required for the operation of the online High Level Trigger. The ease of deployment, stability of operation, and high performance make the FroNTier approach well suited to the GRID environment being used for CMS offline, as well as for the online environment used by the CMS High Level Trigger (HLT). The use of standard software, such as Squid and various monitoring tools, make the system reliable, highly configurable and easily maintained. We describe the architecture, software, deployment, performance, monitoring and overall operational experience for the system

CMS conditions data access using FroNTier

International Nuclear Information System (INIS)

Blumenfeld, B; Dykstra, D; Lueking, L; Wicklund, E

2008-01-01

The CMS experiment at the LHC has established an infrastructure using the FroNTier framework to deliver conditions (i.e. calibration, alignment, etc.) data to processing clients worldwide. FroNTier is a simple web service approach providing client HTTP access to a central database service. The system for CMS has been developed to work with POOL which provides object relational mapping between the C++ clients and various database technologies. Because of the read only nature of the data, Squid proxy caching servers are maintained near clients and these caches provide high performance data access. Several features have been developed to make the system meet the needs of CMS including careful attention to cache coherency with the central database, and low latency loading required for the operation of the online High Level Trigger. The ease of deployment, stability of operation, and high performance make the FroNTier approach well suited to the GRID environment being used for CMS offline, as well as for the online environment used by the CMS High Level Trigger. The use of standard software, such as Squid and various monitoring tools, makes the system reliable, highly configurable and easily maintained. We describe the architecture, software, deployment, performance, monitoring and overall operational experience for the system

Fine-mesh photodetectors for CMS Endcap Electromagnetic Calorimeter

CERN Document Server

Bajanov, N A; Gusev, Yu I; Klechneva, T Yu; Kovalev, A I; Levtchenko, L A; Moroz, F V; Seliverstov, D M; Kachanov, V A; Golubev, N A; Frolov, V A; Lukyanov, V N; Mamaeva, G A; Prilutskaya, D M

2000-01-01

The behaviour of fine-mesh vacuum phototriodes (VPTs) with the external diameters of 21 and 35 mm has been investigated in an axial magnetic field up to 4 T in view of their applications as readout devices for CMS Endcap Electromagnetic Calorimeter. The measured VPT parameters are: the photocathode's sensitivity and its homogeneity, the gain in zero and 4 T magnetic field at tilt angles corresponding to the pseudorapidity range of CMS ECAL Endcap 1.48-3.0 as a function of fine-mesh cell dimensions, excess noise factor and the stability of the photocathode response under the illumination by light emission diodes (LED) and the irradiation by 14 MeV neutrons. Phototriodes with 100 lines per mm fine-mesh and 25 mm external diameter are found to be the best candidates for coupling with rear PbWO/sub 4/ crystals by dimensions of 30*30 mm, proposed to be used in CMS ECAL Endcaps. VPTs provide a gain of the order (6-8) in a 4 T magnetic field and an excess noise factor of 2-2.5 under illumination of a full photocatho...

CDX2 prognostic value in stage II/III resected colon cancer is related to CMS classification.

Science.gov (United States)

Pilati, C; Taieb, J; Balogoun, R; Marisa, L; de Reyniès, A; Laurent-Puig, P

2017-05-01

Caudal-type homeobox transcription factor 2 (CDX2) is involved in colon cancer (CC) oncogenesis and has been proposed as a prognostic biomarker in patients with stage II or III CC. We analyzed CDX2 expression in a series of 469 CC typed for the new international consensus molecular subtype (CMS) classification, and we confirmed results in a series of 90 CC. Here, we show that lack of CDX2 expression is only present in the mesenchymal subgroup (CMS4) and in MSI-immune tumors (CMS1) and not in CMS2 and CMS3 colon cancer. Although CDX2 expression was a globally independent prognostic factor, loss of CDX2 expression is not associated with a worse prognosis in the CMS1 group, but is highly prognostic in CMS4 patients for both relapse free and overall survival. Similarly, lack of CDX2 expression was a bad prognostic factor in MSS patients, but not in MSI. Our work suggests that combination of the consensual CMS classification and lack of CDX2 expression could be a useful marker to identify CMS4/CDX2-negative patients with a very poor prognosis. © The Author 2017. Published by Oxford University Press on behalf of the European Society for Medical Oncology. All rights reserved. For permissions, please email: journals.permissions@oup.com.

42 CFR 411.379 - When CMS accepts a request.

Science.gov (United States)

2010-10-01

... 42 Public Health 2 2010-10-01 2010-10-01 false When CMS accepts a request. 411.379 Section 411.379... Physicians and Entities Furnishing Designated Health Services § 411.379 When CMS accepts a request. (a) Upon receiving a request for an advisory opinion, CMS promptly makes an initial determination of whether the...

CMS Virtual Visits @ European Researchers Night, 30 September 2016

CERN Multimedia

Lapka, Marzena

2016-01-01

CMS hosted four virtual visits during European Researchers Night. Audience from Greece (NCRS Demokritos, Athens), Poland (University of Science and Technology in Krakow), Italy (Psiquadro in Perugia & INFN in Pisa) and Portugal (Planetarium Calouste Gulbenkian, organised by LIP) had an occasion to converse with CMS researchers and "virtually" visit CMS Control Room and underground facilities.

Improvement in breakdown characteristics with multiguard structures in microstrip silicon detectors for CMS

CERN Document Server

Bacchetta, N; Candelori, A; Da Rold, M; Descovich, M; Kaminski, A; Messineo, A; Rizzo, F; Verzellesi, G

2001-01-01

To obtain full charge collection the CMS silicon detectors should be able to operate at high bias voltage. We observed that multiguard structures enhance the breakdown performance of the devices on several tens of baby detectors designed for CMS. The beneficial effects of the multiguard structures still remains after the strong neutron irradiation performed to simulate the operation at the LHC. (3 refs).

3D CAPABILITIES OF PLEIADES SATELLITE

Directory of Open Access Journals (Sweden)

M. Bernard

2012-08-01

Full Text Available End of 2011 a new optical satellite, called Pléiades, was launched by the French space agency (CNES. It provides 20 km x 20 km images at 0.5 meters. This agile acquisition system is able to relocate very rapidly and scan the earth in any direction. The agility of the system offers the ability to acquire multi viewing angle images of the same area during the same orbit. This ability to capture, from a single stereoscopic pair, to a sequence of 25 images, allows enhancing the quality and the completeness of automatically extracted 3D maps. The aim of the study is to validate and quantify the capacity of the Pléiades system to perform 3D mapping. The analysis explores the advantages in terms of quality and automatism to use more than 2 stereoscopic images. In the last 10 years, automatic 3D processing of digital images became more and more popular and efficient. Thanks to aerial images with very large overlap and very high resolution satellite images, new methodologies and algorithms have been implemented to improve the quality and accuracy of automatic 3D processing. We propose to experiment the same type of approaches using Pléiades images to produce digital elevation models (DEM. A focus is made on analysing the 3D processing using video like (multi viewing acquisitions. Different reference sites with very accurate 3D control points are used to quantify the quality of the Pléiades DEM. Different acquisition modes are explored from a single stereo pair to a sequence of 17 images.

Study of long-term sustained operation of gaseous detectors for the high rate environment in CMS

CERN Document Server

AUTHOR|(INSPIRE)INSPIRE-00366989; Sharma, Archana

The muon system of CMS aims to provide an efficient and fast identification of the muons produced in the proton-proton collisions. However, the forward region of the end-caps is only instrumented with Cathode Strip Chambers. This lack of redundancy will be problematic after the high-luminosity upgrade of the LHC (HL-LHC), for which the increase of the background rate would degrade the Level-1 trigger performance and thus the selection of interesting physics channels. The goal of the CMS muon upgrade is to maintain the L1 trigger rate with maximum selection efficiency in order to fully exploit the HL-LHC. The CMS GEM Collaboration has proposed to instrument the vacant high-eta region of the muon end-caps with Gas Electron Multiplier (GEM) detectors, called GE1/1 chambers. The Ph.D. subject proposed by the CMS GEM Collaboration aims to demonstrate that the GE1/1 technology is the most suitable choice for the upgrade of the muon end-caps. Three main research projects were conducted in this context. The first pro...

Optimization of Italian CMS computing centers via MIUR funded research projects

International Nuclear Information System (INIS)

Boccali, T; Mazzoni, E; Donvito, G; Pompili, A; Ricca, G Della; Talamo, I; Argiro, S; Grandi, C; Bonacorsi, D; Lista, L; Fabozzi, F; Barone, L M; Santocchia, A; Riahi, H; Tricomi, A; Sgaravatto, M; Maron, G

2014-01-01

In 2012, 14 Italian Institutions participating LHC Experiments (10 in CMS) have won a grant from the Italian Ministry of Research (MIUR), to optimize Analysis activities and in general the Tier2/Tier3 infrastructure. A large range of activities is actively carried on: they cover data distribution over WAN, dynamic provisioning for both scheduled and interactive processing, design and development of tools for distributed data analysis, and tests on the porting of CMS software stack to new highly performing / low power architectures.

First 13TeV collisions, for tuning the LHC, seen by CMS

CERN Multimedia

McCauley, Thomas

2015-01-01

Late at night on 20 May 2015, the LHC delivered its first 13TeV collisions to the detectors, to tune the accelerator as part of its commissioning. These event show the collisions recorded by CMS on 20 May (without the Tracker switched on) and on 21 May (with the Tracker). Read more: - http://home.web.cern.ch/about/updates/2015/05/protons-set-collide-13-tev-prepare-physics - http://home.web.cern.ch/about/updates/2015/05/first-images-collisions-13-tev

Systementwicklungen und Messungen zur Auslese und Kalibration von CMS Pipeline Chips für die angewandte Forschung und Serientests an CMS Streifendetektoren

CERN Document Server

Petertill, Markus

2001-01-01

The future 14 TeV proton-proton accelerator LHC at CERN serves for the CMS experiment as a high rate source of deep inelastic interactions of quarks and gluons. CMS at the LHC will be one of the "discovery machines" for new particles and theories. The central tracker in the superconducting 4 T-magnet of CMS has to ensure a precise track reconstruction in the space-time. Part I leads to the major tasks of the central tracker for the purpose of preparing the main points of the thesis. In CMS one has to cope with particle fluences of about 10^6cm^-2s^-1 and L1 trigger rates of 100 kHz. System developments have lead to a powerful data acquisition system (DAQ) constructed in VME for emulation of the hardware algorithms in the frontend driver and for research of the properties of CMS microstrip detectors. The experience and the results point to special problems for the operation of the CMS tracker. For most of them solutions will be found which can be emulated in the DAQ or simulated with offline data. If possible ...

Russian and Belorussian firms receive CMS Gold Awards

CERN Multimedia

2003-01-01

On 7 March, CMS handed out its three latest Gold Awards in recognition of outstanding supplier performance. The directors of two Russian firms (ENTEK and the Myasishchev Design Bureau) and of the Belorussian company MZOR received their awards on the occasion of a visit by dignitaries from the two countries. The directors and dignitaries are pictured here with leaders of the CMS Collaboration in front of the CMS hadron calorimeter end-cap at the detector's assembly site.

The Validity of a New Low-Dose Stereoradiography System to Perform 2D and 3D Knee Prosthetic Alignment Measurements.

Science.gov (United States)

Meijer, Marrigje F; Velleman, Ton; Boerboom, Alexander L; Bulstra, Sjoerd K; Otten, Egbert; Stevens, Martin; Reininga, Inge H F

2016-01-01

The EOS stereoradiography system has shown to provide reliable varus/valgus (VV) measurements of the lower limb in 2D (VV2D) and 3D (VV3D) after total knee arthroplasty (TKA). Validity of these measurements has not been investigated yet, therefore the purpose of this study was to determine validity of EOS VV2D and VV3D. EOS images were made of a lower limb phantom containing a knee prosthesis, while varying VV angle from 15° varus to 15° valgus and flexion angle from 0° to 20°, and changing rotation from 20° internal to 20° external rotation. Differences between the actual VV position of the lower limb phantom and its position as measured on EOS 2D and 3D images were investigated. Rotation, flexion or VV angle alone had no major impact on VV2D or VV3D. Combination of VV angle and rotation with full extension did not show major differences in VV2D measurements either. Combination of flexion and rotation with a neutral VV angle showed variation of up to 7.4° for VV2D; maximum variation for VV3D was only 1.5°. A combination of the three variables showed an even greater distortion of VV2D, while VV3D stayed relatively constant. Maximum measurement difference between preset VV angle and VV2D was 9.8°, while the difference with VV3D was only 1.9°. The largest differences between the preset VV angle and VV2D were found when installing the leg in extreme angles, for example 15° valgus, 20° flexion and 20° internal rotation. After TKA, EOS VV3D were more valid than VV2D, indicating that 3D measurements compensate for malpositioning during acquisition. Caution is warranted when measuring VV angle on a conventional radiograph of a knee with a flexion contracture, varus or valgus angle and/or rotation of the knee joint during acquisition.

42 CFR 433.320 - Procedures for refunds to CMS.

Science.gov (United States)

2010-10-01

... 42 Public Health 4 2010-10-01 2010-10-01 false Procedures for refunds to CMS. 433.320 Section 433... Overpayments to Providers § 433.320 Procedures for refunds to CMS. (a) Basic requirements. (1) The agency must refund the Federal share of overpayments that are subject to recovery to CMS through a credit on its...

German contributions to the CMS computing infrastructure

International Nuclear Information System (INIS)

Scheurer, A

2010-01-01

The CMS computing model anticipates various hierarchically linked tier centres to counter the challenges provided by the enormous amounts of data which will be collected by the CMS detector at the Large Hadron Collider, LHC, at CERN. During the past years, various computing exercises were performed to test the readiness of the computing infrastructure, the Grid middleware and the experiment's software for the startup of the LHC which took place in September 2008. In Germany, several tier sites are set up to allow for an efficient and reliable way to simulate possible physics processes as well as to reprocess, analyse and interpret the numerous stored collision events of the experiment. It will be shown that the German computing sites played an important role during the experiment's preparation phase and during data-taking of CMS and, therefore, scientific groups in Germany will be ready to compete for discoveries in this new era of particle physics. This presentation focuses on the German Tier-1 centre GridKa, located at Forschungszentrum Karlsruhe, the German CMS Tier-2 federation DESY/RWTH with installations at the University of Aachen and the research centre DESY. In addition, various local computing resources in Aachen, Hamburg and Karlsruhe are briefly introduced as well. It will be shown that an excellent cooperation between the different German institutions and physicists led to well established computing sites which cover all parts of the CMS computing model. Therefore, the following topics are discussed and the achieved goals and the gained knowledge are depicted: data management and distribution among the different tier sites, Grid-based Monte Carlo production at the Tier-2 as well as Grid-based and locally submitted inhomogeneous user analyses at the Tier-3s. Another important task is to ensure a proper and reliable operation 24 hours a day, especially during the time of data-taking. For this purpose, the meta-monitoring tool 'HappyFace', which was

Performance of the CMS Beam Halo Monitor

CERN Document Server

CMS Collaboration

2015-01-01

The CMS Beam Halo Monitor has been successfully installed in the CMS cavern in LHC Long Shutdown 1 for measuring the machine induced background for LHC Run II. The system is based on 40 detector units composed of radiation hard synthetic quartz Cherenkov radiators coupled to fast photomultiplier tubes for a direction sensitive measurement. The readout electronics chain uses many components developed for the Phase 1 upgrade to the CMS Hadronic Calorimeter electronics, with dedicated firmware and readout adapted to the beam monitoring requirements. The PMT signal is digitized by a charge integrating ASIC (QIE10), providing both the signal rise time, with few ns resolution, and the charge integrated over one bunch crossing. The backend electronics uses microTCA technology and received data via a high-speed 5 Gbps asynchronous link. It records histograms with sub-bunch crossing timing resolution and is readout by IPbus using the newly designed CMS data acquisition for non-event based data. The data is processed i...

Particle Flow at CMS and the ILC

CERN Document Server

Ballin, J A C

2010-01-01

This thesis describes hadron reconstruction at the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN, Geneva. The focus is on the particle flow reconstruction of these objects. This thesis revisits the subject of the CMS calorimeters' non-linear response to hadrons. Data from testbeam experiments conducted in 2006 & 2007 is compared with simulations and substantial differences are found. A particle flow calibration to correct the energy response of the testbeam data is evaluated. The reconstructed jet response is found to change by ~ 5% when a data-driven calibration is used in place of the calibration derived from simulation. Collision data taken at the early stage of CMS' commissioning is also presented. The hadron response in data is determined to be compatible with testbeam results presented in this thesis. This thesis also details the use of neural networks to improve the energy measurement of hadrons at CMS. The networks are implemented in a functional and concurrent ...

Commissioning and Performance of the CMS Silicon Strip Tracker with Cosmic Ray Muons

CERN Document Server

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2010-01-01

During autumn 2008, the Silicon Strip Tracker was operated with the full CMS experiment in a comprehensive test, in the presence of the 3.8 T magnetic field produced by the CMS superconducting solenoid. Cosmic ray muons were detected in the muon chambers and used to trigger the readout of all CMS sub-detectors. About 15 million events with a muon in the tracker were collected. The efficiency of hit and track reconstruction were measured to be higher than 99% and consistent with expectations from Monte Carlo simulation. This article details the commissioning and performance of the Silicon Strip Tracker with cosmic ray muons.

42 CFR 405.1063 - Applicability of laws, regulations and CMS Rulings.

Science.gov (United States)

2010-10-01

... 42 Public Health 2 2010-10-01 2010-10-01 false Applicability of laws, regulations and CMS Rulings... Medicare Coverage Policies § 405.1063 Applicability of laws, regulations and CMS Rulings. (a) All laws and... the MAC. (b) CMS Rulings are published under the authority of the Administrator, CMS. Consistent with...

Science on Drupal: An evaluation of CMS Technologies

Science.gov (United States)

Vinay, S.; Gonzalez, A.; Pinto, A.; Pascuzzi, F.; Gerard, A.

2011-12-01

We conducted an extensive evaluation of various Content Management System (CMS) technologies for implementing different websites supporting interdisciplinary science data and information. We chose two products, Drupal and Bluenog/Hippo CMS, to meet our specific needs and requirements. Drupal is an open source product that is quick and easy to setup and use. It is a very mature, stable, and widely used product. It has rich functionality supported by a large and active user base and developer community. There are many plugins available that provide additional features for managing citations, map gallery, semantic search, digital repositories (fedora), scientific workflows, collaborative authoring, social networking, and other functions. All of these work very well within the Drupal framework if minimal customization is needed. We have successfully implemented Drupal for multiple projects such as: 1) the Haiti Regeneration Initiative (http://haitiregeneration.org/); 2) the Consortium on Climate Risk in the Urban Northeast (http://beta.ccrun.org/); and 3) the Africa Soils Information Service (http://africasoils.net/). We are also developing two other websites, the Côte Sud Initiative (CSI) and Emerging Infectious Diseases, using Drupal. We are testing the Drupal multi-site install for managing different websites with one install to streamline the maintenance. In addition, paid support and consultancy for Drupal website development are available at affordable prices. All of these features make Drupal very attractive for implementing state-of-the-art scientific websites that do not have complex requirements. One of our major websites, the NASA Socioeconomic Data and Applications Center (SEDAC), has a very complex set of requirements. It has to easily re-purpose content across multiple web pages and sites with different presentations. It has to serve the content via REST or similar standard interfaces so that external client applications can access content in the CMS

An overview of CMS central hadron calorimeter

CERN Document Server

Katta, S

2002-01-01

The central hadron calorimeter for CMS detector is a sampling calorimeter with active medium as scintillator plates interleaved with brass absorber plates. It covers the central pseudorapidity region (¿ eta ¿<3.0). The design and construction aspects are reported. The status of construction and assembly of various subdetectors of HCAL are presented. (5 refs).

42 CFR 460.48 - Additional actions by CMS or the State.

Science.gov (United States)

2010-10-01

... 42 Public Health 4 2010-10-01 2010-10-01 false Additional actions by CMS or the State. 460.48... CMS or the State. After consultation with the State administering agency, if CMS determines that the PACE organization is not in substantial compliance with requirements in this part, CMS or the State...

Interactive Slice of the CMS detector

CERN Multimedia

Davis, Siona Ruth

2016-01-01

This slice shows a colorful cross-section of the CMS detector with all parts of the detector labelled. Viewers are invited to click on buttons associated with five types of particles to see what happens when each type interacts with the sections of the detector. The five types of particles users can select to send through the slice are muons, electrons, neutral hadrons, charged hadrons and photons. Supplementary information on each type of particles is given. Useful for inclusion into general talks on CMS etc. *Animated CMS "slice" for Powerpoint (Mac & PC) Original version - 2004 Updated version - July 2010 *Six slides required - first is a set of buttons; others are for each particle type (muon, electron, charged/neutral hadron, photon) Recommend putting slide 1 anywhere in your presentation and the rest at the end

Last tango in mid-air for CMS

CERN Multimedia

2008-01-01

TheYE-1 end-cap is the last CMS component to wave goodbye to the green grass of Cessy and plunge into the depths of the CMS cavern, bringing to an end a procession of spectacular descents lasting 15 months. See the video at the end of the article!

N = (2,0) self-dual non-Abelian tensor multiplet in D = 3 + 3 generates N = (1,1) self-dual systems in D = 2 + 2

Science.gov (United States)

Nishino, Hitoshi; Rajpoot, Subhash

2018-03-01

We formulate an N = (2 , 0) system in D = 3 + 3 dimensions consisting of a Yang-Mills (YM)-multiplet (ˆ μ ˆ IA, λˆI), a self-dual non-Abelian tensor multiplet (ˆ μ ˆ ν ˆ IB, χˆI ,φˆI), and an extra vector multiplet (C ˆ μ ˆ IC, ρˆI). We next perform the dimensional reductions of this system into D = 2 + 2, and obtain N = (1 , 1) systems with a self-dual YM-multiplet (AIμ ,λI), a self-dual tensor multiplet (BIμν , χI , φI), and an extra vector multiplet (CIμ , ρI). In D = 2 + 2, we reach two distinct theories: 'Theory-I' and 'Theory-II'. The former has the self-dual field-strength Hμν(+)I of CIμ already presented in our recent paper, while the latter has anti-self-dual field strength Hμν(-)I. As an application, we show that Theory-II actually generates supersymmetric-KdV equations in D = 1 + 1. Our result leads to a new conclusion that the D = 3 + 3 theory with non-Abelian tensor multiplet can be a 'Grand Master Theory' for self-dual multiplet and self-dual YM-multiplet in D = 2 + 2, that in turn has been conjectured to be the 'Master Theory' for all supersymmetric integrable theories in D ≤ 3.

SiteDB: Marshalling people and resources available to CMS

Energy Technology Data Exchange (ETDEWEB)

Metson, S [H.H. Wills Physics Laboratory, Bristol (United Kingdom); Bonacorsi, D [University of Bologna and INFN Bologna (Italy); Ferreira, M Dias [SPRACE (Brazil); Egeland, R [University of Minnesota, Twin Cities (United States)

2010-04-01

In a collaboration the size of CMS (approx. 3000 users, and almost 100 computing centres of varying size) communication and accurate information about the sites it has access to is vital in co-ordinating the multitude of computing tasks required for smooth running. SiteDB is a tool developed by CMS to track sites available to the collaboration, the allocation to CMS of resources available at those sites and the associations between CMS members and the sites (as either a manager/operator of the site or a member of a group associated to the site). It is used to track the roles a person has for an associated site or group. SiteDB eases the coordination load for the operations teams by providing a consistent interface to manage communication with the people working at a site, by identifying who is responsible for a given task or service at a site and by offering a uniform interface to information on CMS contacts and sites. SiteDB provides api's and reports for other CMS tools to use to access the information it contains, for instance enabling CRAB to use 'user friendly' names when black/white listing CE's, providing role based authentication and authorisation for other web based services and populating various troubleshooting squads in external ticketing systems in use daily by CMS Computing operations.

SiteDB: Marshalling people and resources available to CMS

International Nuclear Information System (INIS)

Metson, S; Bonacorsi, D; Ferreira, M Dias; Egeland, R

2010-01-01

In a collaboration the size of CMS (approx. 3000 users, and almost 100 computing centres of varying size) communication and accurate information about the sites it has access to is vital in co-ordinating the multitude of computing tasks required for smooth running. SiteDB is a tool developed by CMS to track sites available to the collaboration, the allocation to CMS of resources available at those sites and the associations between CMS members and the sites (as either a manager/operator of the site or a member of a group associated to the site). It is used to track the roles a person has for an associated site or group. SiteDB eases the coordination load for the operations teams by providing a consistent interface to manage communication with the people working at a site, by identifying who is responsible for a given task or service at a site and by offering a uniform interface to information on CMS contacts and sites. SiteDB provides api's and reports for other CMS tools to use to access the information it contains, for instance enabling CRAB to use 'user friendly' names when black/white listing CE's, providing role based authentication and authorisation for other web based services and populating various troubleshooting squads in external ticketing systems in use daily by CMS Computing operations.

Association of vitamin D insufficiency/deficiency with thyroid artery Doppler ultrasonography in patients with Hashimoto thyroiditis.

Science.gov (United States)