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Showing 1 to 20 of 412 for “"CMS"”.
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Desenvolvimento web com CMS
… conhecimento técnico. Nos últimos anos, CMSs (Content Management System ─ Sistemas de Gerenciamento de conteúdo) vêm se tornando cada vez mais populares, atualmente, correspondem a quase metade de todos os sites da Internet. Estes sistemas auxiliam tanto clientes quanto desenvolvedores na …
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Deformation studies on CMS endcap modules and misalignment studies on the CMS tracker
… of detector modules located in the endcap of the CMS tracker * The effect of misalignment of the tracker support structure on the performance of the CMS tracker 0.1 Deformation Measurements In chapter two the possible deformations of the TEC modules under temperature changes have been …
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Diboson physics with CMS detector
… in pp collision with the Compact Muon Solenoid (CMS) detector at Large Hadron Collider (LHC). A study of Z+gamma process is performed on the data collected by the CMS during 2011 and corresponding to integrated luminosity L= 5 fb[superscript]-1. The study consists of two parts: cross section …
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Characterization of the CMS pixel detectors
… system makes up the innermost part of the CMS experiment, which is one of the two general purpose detectors at the LHC. The main tasks of the system are vertex detection and flavor tagging. The high luminosity and the high particle multiplicity as well as the small bunch spacing at the LHC …
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Measuring Higgs self-coupling at CMS
This study evaluates the Compact Muon Solenoid (CMS) experiment's ability to characterize Higgs self-coupling through the ... channel. The effective cross-section for detecting ... events is computed by finding the fraction of simulated events that make it through selection cuts. These same cuts …
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Systementwicklungen und Messungen zur Auslese und Kalibration von CMS pipeline chips für die angewandte Forschung und Serientests an CMS-Streifendetektoren
… 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 …
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Silicon strip detector qualification for the CMS experiment
The Compact Muon Solenoid (CMS) is one of the four experiments being installed at the Large Hadron Collider (LHC) which is located at the european organization for nuclear research CERN in Geneva. This proton-proton collider will explore a new energy regime of up to 14 TeV center-of-mass energy. To …
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Measurement of the Anomalous Magnetic Moment of Tau Lepton with CMS Experiments and Improvements to the Zero Degree Calorimeters at CMS
… data for this measurement were collected by the CMS experiment in 2018 with an integrated luminosity of up to 1.70nb?1 and at a center-of-mass energy per nucleon pair of = 5.02TeV. This measurement is an improvement over a previously reported measurement from CMS using 2015 PbPb Data [4]. The new …
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Electron reconstruction in simulated Pb+Pb events in CMS
… In addition, the Compact Muon Solenoid (CMS) is currently being commissioned. It will start taking data from as early as late 2008. The detector will be excel in muon detection, but it is also a general purpose detector for p+p and Pb+Pb collsions. The CMS experiment opens up a new window …
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Exploring the space of jets with CMS Open Data
… physics studies on the space of jets using the CMS 2011 Open Data, experimental data of 7 TeV proton-proton collisions from the 2011 Run at the Large Hadron Collider released by the CMS collaboration for public use. Our first study uses the Energy Mover's Distance (EMD), a metric that quantifies …
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The laser alignment system for the CMS silicon microstrip tracker
The Compact Muon Solenoid (CMS) is one of the two general purpose detectors that will be installed at the future Large Hadron Collider (LHC). For the proper operation of the CMS silicon microstrip tracker it is essential that the several sensor layers can be aligned with respect to each other with …
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Analysis of petal longterm test data for the CMS-experiment
… at the LHC is the multipurpose detector CMS (Compact Muon Solenoid). A key part of the CMS detector is the tracking system, that is composed of a silicon pixel detector forming the innermost part, surrounded by silicon strip sensors. Currently, it is the largest silicon detector in the …
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Measurement of [gamma](1S) spin alignment with the CMS detector
This thesis presents a measurement of the spin alignment of prompt [gamma](1S) mesons produced in proton-proton collisions at [square root of]s = 7 TeV at the Large Hadron Collider using the Compact Muon Solenoid detector. Approximately 1 fb-1 of data taken during the year 2011 is analyzed. The …
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Measurement of [formula] in Associated Production with the CMS Detector
… cross section of [formula] is measured with the CMS Detector. The Simplified Template Cross Section framework is used. The inclusive strength of the measured signal relative to the Standard Model is [formula], which agrees with the Standard Model within 2.1 standard deviations. The measured …
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Needles in the Quantum Haystack: CMS Anomaly Detection with Normalizing Flows
… variable distributions of hidden signals in CMS data. Through several studies on both Monte Carlo samples and 13 TeV data from CMS, we demonstrate that QUAK with normalizing flows (QUAK-NF) can be a powerful tool for conducting searches for BSM physics.
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Observation of electroweak W±W± JJ production with the CMS experiment
The CMS detector at the CERN LHC is sensitive to Standard Model predictions regarding the production of two W bosons with the same charge accompanied by two jets. In particular, when these particles are produced in a topology where the jets have a high invariant mass and are largely separated in …
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Jet quenching in heavy-ion collisions at LHC with CMS detector
… of correlations of jet pairs as measured by the CMS detector at LHC. The implications of the results are discussed by comparison of simple models with data. It is observed that the geometrical configuration of the dijets and the nuclear collision region plays an important role in the correlations …
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Construction and calibration of the laser alignment system for the CMS tracker
The CMS detector (Compact Muon Solenoid) is under construction at one of the four proton-proton interaction points of the LHC (Large Hadron Collider) at CERN, the European Organization for Nuclear Research (Geneva, Switzerland). The inner tracking system of the CMS experiment consisting of silicon …
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