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Showing 1 to 19 of 19 for “"Compact muon solenoid (CMS)"”.
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Charged multiplicity measurement for simulated pp events in the Compact Muon Solenoid (CMS) detector
… multiplicity of proton-proton collisions in the Compact Muon Solenoid (CMS) experiment at LHC energies ... This technique involves counting reconstructed hits in the innermost layer of the pixel tracker. By using the relationship between pseudorapidity and deposited charge of the hits, we can …
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A systematic resolution study of [tau][tau] decays at CMS at the LHC
… resolution study for di-tau pairs at the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN. I performed this analysis using Monte Carlo simulated events with a Higgs boson which decays into two tau particles with initial mass mH = 90 - 500 GeV/c ² . The two …
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Optimization of b-tagging for Beyond Standard Model Searches in di-b-jet final states with the CMS experiment at the CERN LHC
Το πείραμα Compact Muon Solenoid (CMS) στον Μεγάλο Επιταχυντή Αδρονίων (LHC) στον Ευρωπαϊκό Οργανισμό Πυρηνικών Ερευνών (CERN) συλλέγει και αναλύει δεδομένα από συγκρούσεις πρωτονίων σε ενέργεια κέντρου μάζας 13:6 TeV, τη μεγαλύτερη έως τώρα σε πειράματα επιταχυντών. Η ανάλυση των τελικών …
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Modeling exascale data generation and storage for the large hadron collider computing network
… produced at the LHC and measured with the Compact Muon Solenoid (CMS) detector, the CMS experimental group performs precision measurements and general searches for new physics. Year-round CMS operations produce 100 Petabytes of physics data per year, which is stored within a globally …
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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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Electron identification and ZZ -->4l̳ (e̳, [mu]) cross section measurement with the CMS detector
… using generator-level information in the Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC). In particular, we carry out three central investigations: the determination of electron efficiencies, electron fake rates, and ZZ -->4l(e, [mu]) cross sections. Reconstructed Z …
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Development of dense scintillating hard fluoride glasses for the electromagnetic caorimeter of the proposed compact muon solenoid
… was the electromagnetic calorimeter of the Compact Muon Solenoid (CMS), a proposed detector for the Large Hadron Collider (LHC) at CERN, Geneva. Incorporating CeF 3 in these transparent glasses results in scintillators with fast time constants that are typical of crystalline CeF 3. Typical …
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Analysis of Beauty Quark Hadronization in Vacuum and Quark-Gluon Plasma with CMS
… mesons decay into 𝐽/𝜓 and strange hadrons using Compact Muon Solenoid (CMS) Experiment 2017 𝑝𝑝 dataset and 2018 PbPb data at the center of mass energy per nucleon √𝑠𝑁𝑁 = 5.02 TeV at the Large Hadron Collider (LHC) is presented. We apply machine learning techniques along with multivariate analysis …
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A study of tau identification with the CMS detector at the LHC
… reconstructed data that will be collected by the Compact Muon Solenoid (CMS) detector on the Large Hadron Collider (LHC) at CERN. The two components of particle identification, efficiencies of [tau] identification from generator level information, along with fake rates of the current default …
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Studies of Jet Modification in Heavy Ion Collisions with the CMS Experiment
In the Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC), lead ions are collided at ultra-relativistic velocities to produce Quark-Gluon Plasma (QGP), a state of matter where quarks and gluons are deconfined and move collectively. Jets are produced in high-momentum transfer …
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Diboson physics with CMS detector
… of di-boson production 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 …
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Neural-Network Based b-Tagging in the CMS Level 1 Trigger System
The Phase II upgrade of the Compact Muon Solenoid (CMS) detector for the High Luminosity Large Hadron Collider will greatly expand the hardware capabilities of the Level 1 Trigger (L1T) system. With the advent of tracks in the L1T, these upgrades bring the idea of b jet identification within the …
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DIRECTED AND ELLIPTIC FLOW MEASUREMENTS: A COMPARISON BETWEEN THE PARTICIPANT AND SPECTATOR PLANES IN Pb+Pb COLLISIONS AT √sNN = 5.02 TeV WITH CMS AT THE LHC
… and spectator neutrons measured with the Compact Muon Solenoid (CMS) detector and the newly installed Spectator Reaction Plane Detector (SRPD), respectively. The SRPD is the latest addition to the existing Zero Degree Calorimeter (ZDC) designed to measure spectator neutrons +/- 140 m from …
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Partonic rescatterings during jet fragmentation in the QCD vacuum
… for partonic collectivity inside jets using the Compact Muon Solenoid (CMS) detector at the LHC. We compare results from data to two MC simulations employing different phenomenological models. Deviations between data and both MC simulations are observed, in accordance with our initial postulate. …
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Search for the Higgs Boson in the ZZ --> ℓℓvv channel with CMS
… analysis of 4.9 fb-1 of data collected with the Compact Muon Solenoid (CMS) detector at the LHC. Overviews of electroweak theory and of Higgs production at the LHC are given, followed by descriptions of the CMS detector and the algorithms for event reconstruction. A measurement of the inclusive …
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First search for electroweak supersymmetry in final states with hadronic decays of WW, WZ, or WH boson pair and missing transverse momentum.
… search is performed using Run 2 data from the CMS experiment at the LHC with a total integrated luminosity of 137 fb−1 . The targeted final states include a pair of bosons (WW, WZ, or WH) with large missing transverse momentum arising from the lightest neutralinos (χe 0 1 ). Deep neural network …
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Electron reconstruction in simulated Pb+Pb events in CMS
… p+p collision experiments. 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 …
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Machine learning techniques for calorimeter cluster calibration of the CMS particle flow algorithm.
… Calorimeter (HCAL) are key components of the CMS detector. The ECAL is designed to measure the energies of electrons and photons, while the HCAL measures the energies of charged and neutral hadrons. The Particle Flow (PF) algorithm integrates information from various CMS sub-detectors to …
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Machine learning techniques for calorimeter cluster calibration of the CMS particle flow algorithm.
… Calorimeter (HCAL) are key components of the CMS detector. The ECAL is designed to measure the energies of electrons and photons, while the HCAL measures the energies of charged and neutral hadrons. The Particle Flow (PF) algorithm integrates information from various CMS sub-detectors to …