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2024-10-01
11:14
Machine learning based tau lepton identification for the CMS high-level trigger deployed for 13.6 TeV proton-proton collisions / Sarkisovi, Valentina (Aachen, Tech. Hochsch.) /CMS Collaboration
Tau leptons are important to several testable predictions of the standard model, including lepton spin polarization, and the Higgs Yukawa coupling to leptons. Tau leptons are also vital in the search for beyond the standard model physics, as many models predict new particles which decay into final states with tau leptons. [...]
CMS-CR-2024-244.- Geneva : CERN, 2024 - 4 p. Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024

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2024-10-01
11:14
Upgrade of the CMS Electromagnetic Calorimeter for High-Luminosity LHC / Amendola, Chiara (CERN) /CMS Collaboration
The CMS Electromagnetic Calorimeter (ECAL) is a homogeneous PbWO$_{4}$-based detector. The upcoming High-Luminosity upgrade of the CERN LHC will provide detectors with unprecedented instantaneous luminosity, entailing an increase of the average number of proton-proton collisions per bunch crossing up to a value of 200. [...]
CMS-CR-2024-213.- Geneva : CERN, 2024 - 6 p. Fulltext: PDF;
In : 25th international Workshop on Radiation Imaging Detectors (iWoRiD2024), Lisbon, Portugal, 30 Jun - 4 Jul 2024

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2024-10-01
11:14
Operation of CMS GE1/1 GEM detectors in Run-3 / Calzaferri, Simone (INFN, Pavia) /CMS Collaboration
The muon system of the CMS experiment at the LHC has been upgraded by the installation of the first station of Gas Electron Multiplier (GEM), GE1/1, over the Long Shutdown 2 (LS2). The High-Luminosity phase of the LHC (HL-LHC) upgrade for CMS incorporates two additional stations, GE2/1 and ME0. [...]
CMS-CR-2024-210.- Geneva : CERN, 2024 - 7 p. Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024

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2024-10-01
11:13
Performance of eco-friendly alternative gas mixtures in CMS iRPC detector in the HL-LHC environment / Gomes Pinheiro, Joao Pedro (Rio de Janeiro State U.) /CMS Collaboration
The RPC detectors in the CMS experiment operate with a gas mixture made of 95.2pct C2H2F4, known to be a greenhouse gas. Several eco-friendly alternatives to C2H2F4, such as HFO, have been studied in the last few years in order to find an alternative mixture with low Global-Warming Potential (GWP), while maintaining the performance of the RPC chambers. [...]
CMS-CR-2024-195.- Geneva : CERN, 2024 - 6 p. Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024

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2024-10-01
11:13
Online Monitoring System for the CMS GEM Detectors / Kaur, Anureet (Panjab U.) /CMS Collaboration
Upgrades to the Compact Muon Solenoid (CMS) system for the High-Luminosity Large Hardon Collider (HL-LHC) include the new Gas Electron Multiplier (GEM) detectors GE1/1, GE2/1, and ME0. The development of the GEM-Online Monitoring System (OMS) is crucial to their successful operation. [...]
CMS-CR-2024-194.- Geneva : CERN, 2024 - 5 p. Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024

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2024-10-01
10:12
Search for a light CP-odd Higgs boson decaying into a pair of $\tau$-leptons in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
This paper reports a search for a light CP-odd scalar resonance with a mass of 20 GeV to 90 GeV in 13 TeV proton-proton collision data with an integrated luminosity of 140 fb$^{-1}$ collected with the ATLAS detector at the Large Hadron Collider. [...]
CERN-EP-2024-235. - 2024.
Fulltext - Previous draft version

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2024-10-01
04:48
Clocking the particle production and tracking of strangeness balance and radial flow effects at top LHC energy with ALICE / Gonzalez, Victor
Balance functions have been used extensively to elucidate the time evolution of quark production in heavy-ion collisions. [...]
arXiv:2409.18593. -
Fulltext

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2024-10-01
04:46
Charged-particle production in pp collisions at $\sqrt{s}$ = 13.6 TeV and Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.36 TeV with ALICE / Modak, Abhi
This article presents the measurement of charged-particle pseudorapidity ($\eta$) density, $\mathrm{d}N_{\rm ch}/\mathrm{d}\eta$, in proton$-$proton (pp) collisions at a centre-of-mass energy $\sqrt{s}$ = 13.6 TeV, and in lead$-$lead (Pb$-$Pb) collisions at a centre-of-mass energy per nucleon pair $\sqrt{s_{\mathrm{NN}}}$ = 5.36 TeV. [...]
arXiv:2409.18560. - 6 p.
Fulltext

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2024-09-30
18:18
Test beam results on 3D pixel sensors for the CMS Tracker upgrade at the High-Luminosity LHC / Lasaosa Garcia, Clara (Cantabria Inst. of Phys.)
The High Luminosity upgrade of the CERN Large Hadron Collider (HL-LHC) requires new high-radiation tolerant silicon pixel sensors for the innermost part of the tracking detector in the CMS experiment. The innermost layer of the tracker, which is as close $\mathrm{3\, cm}$ from the interaction point, will be exposed to a fluence of $\mathrm{3.4\times10^{16}\, n_{eq} cm^{-2}}$ during the high-luminosity operation period. [...]
CMS-CR-2024-182.- Geneva : CERN, 2024 - 10 p. Fulltext: PDF;
In : 25th international Workshop on Radiation Imaging Detectors (iWoRiD2024), Lisbon, Portugal, 30 Jun - 4 Jul 2024

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2024-09-30
17:49
Quality control results of the first CMS GE2/1 muon production chambers / Elkafrawy, Tamer (Florida Inst. Tech.) /CMS Collaboration
The CMS upgrade for the High Luminosity phase of the LHC involves the installation of three GEM stations GE1/1, GE2/1, and ME0. While GE1/1 has been operational since Run-3's onset, only two GE2/1 chambers are in place as of early 2024. [...]
CMS-CR-2024-189.- Geneva : CERN, 2024 - 5 p. Fulltext: PDF;
In : 42nd International Conference on High Energy Physics (ICHEP 2024), Prague, Czech Republic, 18 - 24 Jul 2024

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