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Author:
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Category :
Languages : en
Pages :
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Book Description
Provides information about the Compact Muon Solenoid (CMS), a project of the Large Hadron Collider experiments Committee (LHC) of the European Laboratory for Particle Physics (CERN). The CMS will allow detection of a wide range of signatures from alternative electro-weak symmetry breaking mechanisms and will cover important aspects of the heavy ion physics program. Provides information about the organization and institutes of the CMS Collaboration. Offers access to documents, including the letter of intent and the technical proposal. Contains a schedule of meetings and conferences. Links to the home page of CERN.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Provides information about the Compact Muon Solenoid (CMS), a project of the Large Hadron Collider experiments Committee (LHC) of the European Laboratory for Particle Physics (CERN). The CMS will allow detection of a wide range of signatures from alternative electro-weak symmetry breaking mechanisms and will cover important aspects of the heavy ion physics program. Provides information about the organization and institutes of the CMS Collaboration. Offers access to documents, including the letter of intent and the technical proposal. Contains a schedule of meetings and conferences. Links to the home page of CERN.
Author: Martti Pimiä
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
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Author: Olena Karacheban
Publisher: Springer
ISBN: 3319931393
Category : Science
Languages : en
Pages : 153
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Book Description
This book describes the application of a novel technology for beam instrumentation and luminosity measurement and first results on a cutting edge technology potentially to be used after the upgrade of the Large Hadron Collider to higher luminosity. It presents a unique diamond-based luminometer with a detailed performance study. The online bunch-by-bunch luminosity measurements provide an invaluable feedback to the Collider for beam optimisation and for the understanding of beam dynamics. The precision of the luminosity measurement is crucial for all physics analyses. This book highlights the Van der Meer method, which is used for the calibration of the luminometers of the CMS (Compact Muon Solenoid) experiment, and describes the estimate of systematic uncertainties, e.g. due to radiation damage of sensors and electronics and uncertainties of beam parameters. For the future high-luminosity upgrade of the collider, sapphire sensors are investigated in a test beam. It is demonstrated for the first time that sapphire sensors can be used as single particle detectors. A model for the charge transport in sapphire is developed and successfully applied.
Author: [Anonymus AC01120729]
Publisher:
ISBN: 9789290830689
Category :
Languages : en
Pages : 254
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Author: Yuriy Aleksandrovich Pakhotin
Publisher:
ISBN:
Category :
Languages : en
Pages :
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ABSTRACT: Same-charge di-lepton events provide a very clean experimental signature for Supersymmetry (SUSY) search. This work studies the Compact Muon Solenoid (CMS) experiment search potential for new physics with same-charge, isolated di-leptons accompanied by jets and large missing transverse energy. The results show that CMS sensitivity for new physics at 7 TeV with integrated luminosity 100 pb ... 1 will exceed current Tevatron limits. Muon detection for SUSY discovery in the forward direction is accomplished using cathode strip chambers (CSC). These detectors identify muons, provide a fast muon trigger, and give a precise measurement of the muon trajectory. There are 468 six-plane CSCs in the system. The efficiency of finding muon trigger primitives (muon track segments) was studied using 36 CMS CSCs and cosmic ray muons during the Magnet Test and Cosmic Challenge (MTCC) exercise conducted by the CMS experiment in 2006. The efficiency of finding 2-dimensional trigger primitives within 6-layer chambers was found to be 99.93 ± 0.03%.
Author: S. Cittolin
Publisher:
ISBN:
Category : Large Hadron Collider (France and Switzerland)
Languages : en
Pages : 60
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Book Description
Author: Samuel Louis Bein
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 113
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Book Description
A Monte Carlo study of a generic search for new resonances beyond the Standard Model (SM) in the CMS experiment is presented. The resonances are axigluon, coloron, E6 diquark, excited quark, W', Z', and the Randall-Sundrum graviton which decay to dijets. The dijet resonance cross section that the CMS can expect to discover at a 5[sigma] significance or to exclude at 95% confidence level for integrated luminosities of 100 pb-1, 1 fb-1, and 10 fb-1 is evaluated. It is shown that a 5[sigma] discovery of a multi-TeV dijet resonance is possible for an axigluon, excited quark, and E6 diquark. However, a 5[sigma] discovery can not be projected with confidence for a W', Z' and the Randall-Sundrum graviton. On the other hand, 95% CL exclusion mass regions can be measured for all resonances at high luminosities. In the second part of this dissertation, the analyses of the 2006 test beam data from the combined electromagnetic and hadronic barrel calorimeters are presented. The CMS barrel calorimeters response to a variety of beam particles in a wide momenta range (1 to 350 GeV/c) is measured. Furthermore, using these beam data, the expected performance of the barrel calorimeters to jets is predicted.
Author: Cameron Bravo
Publisher:
ISBN:
Category :
Languages : en
Pages : 142
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Book Description
This thesis first presents a detailed study of the Compact Muon Solenoid (CMS) Cathode Strip Chamber track stubs used to build muon tracks in the first layer of filtering, done in hardware, of the data. We study the spatial and angular resolutions of the track stubs with respect to the reconstructed hits using the full granularity data. We then move to a general description of a new technology, Gas Electron Multipliers (GEM), which is to be used in a near-future upgrade to the system. The characterization and calibration of the front-end electronics of the GEMs is discussed in detail. It is demonstrated that the noise of the electronics is sufficiently low to allow high efficiency operation of the technology with the first prototype GEM detector for the new subsystem. We then discuss the phenomenology of sphaleron-induced transition in proton-proton collisions. A new Monte Carlo generator is built to study this phenomenology in detail. We then perform a search analysis of the $35.9~\text{fb}^{-1}$ of data collected by the CMS detector in 2016. We set the first experimental upper limit on sphaleron production in proton-proton collisions.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Presents information regarding the Compact Muon Solenoid (CMS), a general purpose detector that operates on the Large Hadron Collider (LHC) accelerator at the European Laboratory for Particle Physics (CERN), located in Geneva, Switzerland. Notes that the detector is optimized for search of the Standard Model Higgs boson, as well as the study of top, beauty, and tau physics. Includes information about the organizations and institutes in CMS, experiments, and outreach. Offers access to details about conferences and current news. Explains that much of the information is available in the PDF format. Links to the home page of CERN.
