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CMS Preprints

Últimas adquisiciones:
2024-12-19
05:21
Search for long-lived charged particles using the CMS detector in Run-2 / Vami, Tamas Almos (Unlisted)
Long-lived charged particles are predicted by various theories beyond the Standard Model, leading to unique signatures that could reveal new physics [...]
arXiv:2412.12125.
- 14.
Fulltext

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2024-12-18
19:48
High-precision measurement of the W boson mass with the CMS experiment at the LHC
In the standard model of particle physics, the masses of the carriers of the weak interaction, the W and Z bosons, are uniquely related. [...]
CERN-EP-2024-308 ; CMS-SMP-23-002-003.
- 2024
Additional information for the analysis - CMS AuthorList - Fulltext

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2024-12-16
16:27
Online and Offline Event selections for UPC heavy-flavour and jet events with CMS / Kovacs, Balazs (Eotvos U.) /CMS Collaboration
In this proceeding, we present the experimental techniques developed to select good photo-nuclear events in ultraperipheral heavy-ion collisions (UPCs) with the CMS detector at the Large Hadron Collider (LHC). The CMS Collaboration has recently designed and implemented a new trigger strategy to maximize the number of collected photo-nuclear events in Pb+Pb UPCs. [...]
CMS-CR-2024-314.- Geneva : CERN, 2024 - 7 p. Fulltext: PDF;
In : Diffraction and Low-x 2024, Trabia, Palermo, Italy, 8 - 14 Sep 2024

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2024-12-12
04:48
Run 3 performance and advances in heavy-flavor jet tagging in CMS / Sarkar, Uttiya (RWTH Aachen U.)
Identification of hadronic jets originating from heavy-flavor quarks is extremely important to several physics analyses in High Energy Physics, such as studies of the properties of the top quark and the Higgs boson, and searches for new physics. [...]
arXiv:2412.05863.
- 13.
Fulltext

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2024-12-11
15:12
Scalable Temporal Anomaly Causality Discovery in Large Systems: Achieving Computational Efficiency with Binary Anomaly Flag Data / Asres, Mulugeta Weldezgina (U. Agder, Kristiansand) ; Omlin, Christian Walter (U. Agder, Kristiansand)
Extracting anomaly causality facilitates diagnostics once system faults are detected by monitoring systems. Identifying anomaly causes in large systems involves investigating a more extensive set of monitoring variables across multiple subsystems. [...]
arXiv:2412.11800; CERN-CMS-DN-2023-030; CERN-CMS-DN-2023-030.- Geneva : CERN, 2023 - 30 p. Fulltext: DN2023_030 - PDF; 2412.11800 - PDF;

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2024-12-10
12:37
Measurements of lepton flavour universality in $B_c^+$ meson decays / Sedelnikov, Aleksandr (CERN-based) /CMS Collaboration
The CMS experiment results on R($J/\psi$) = $\mathcal{B}(B_c^+ \to J/\psi \tau^+ \nu_{\tau})/\mathcal{B}(B_c^+ \to J/\psi \mu^+ \nu_{\mu})$ lepton flavor universality observable are reported using two channels of reconstruction of the $\tau$ lepton: $\tau^+ \rightarrow \mu^+ \nu_\mu \bar{\nu_\tau}$ (leptonic) and $\tau^+ \to \pi^+ \pi^- \pi^+ (+ \pi^0) \bar{\nu_{\tau}}$ (hadronic). These measurements use 13 TeV proton-proton collision data from the LHC Run 2. [...]
CMS-CR-2024-325.- Geneva : CERN, 2024 - 10 p. Fulltext: PDF;
In : 7th International Conference on Particle Physics and Astrophysics, Moscow, Russia, 22 - 25 Oct 2024

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2024-12-10
12:37
Radiation Testing of New Readout Electronics for the CMS ECAL Barrel / Harringer, Nico (Zurich, ETH) ; Dissertori, Gunther (Zurich, ETH) ; Gadek, Tomasz (Zurich, ETH) ; Wojciech Hajdas ; Haller, Christian (Zurich, ETH) ; Loukas, Nikitas (Notre Dame U.) ; Lustermann, Werner (Zurich, ETH) ; Morvaj, Ljiljana (Boskovic Inst., Zagreb) ; Singovski, Alexander (Notre Dame U.) ; Stachon, Krzysztof (Zurich, ETH)
In preparation of the operation of the CMS electromagnetic calorimeter (ECAL) barrel at the High Luminosity Large Hadron Collider (HL-LHC) the entire on-detector electronics will be replaced. The new readout electronics comprises 12240 very front end (VFE), 2448 front end (FE) and low voltage regulator (LVR) cards arranged into readout towers (RTs) of five VFEs, one FE and one LVR card. [...]
CMS-CR-2024-310.- Geneva : CERN, 2024 - 8 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2024, Glasgow, United Kingdom, 30 Sep - 4 Oct 2024

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2024-12-10
12:37
Test beam performance of sensor modules for the CMS Barrel Timing Layer / Cetorelli, Flavia (INFN, Milan Bicocca ; Milan Bicocca U.) /CMS Collaboration
The minimum ionizing particles (MIPs) timing detector (MTD) will be installed during the Phase II Upgrade of the Compact Muon Solenoid (CMS) experiment at the CERN LHC. The MTD will provide time information for tracks with a time resolution of about 30-60~ps to handle the increased number of concurrent interactions and maintain the CMS detector's reconstruction performance. [...]
CMS-CR-2024-212.- 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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2024-12-10
09:44
Spectroscopy of beauty strange baryons at CMS / Ivanov, Kirill (CERN-based) /CMS Collaboration
Latest CMS results on spectroscopy of beauty strange baryons are reported, including new decay modes and studies of excited states. The analyses use pp collision data at 13 TeV..
CMS-CR-2024-323.- Geneva : CERN, 2024 - 7 p. Fulltext: PDF;
In : 7th International Conference on Particle Physics and Astrophysics, Moscow, Russia, 22 - 25 Oct 2024

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2024-12-10
09:44
CMS CSC longevity studies / Perelygin, Victor (Dubna, JINR) /CMS Collaboration
Cathode Strip Chambers (CSCs) are used in the muon system of the CMS experiment at LHC. There are four muon stations on both endcaps consisting of 540 CSCs operating with 40\%Ar + 50\%CO2 + 10\%CF4 gas mixture. [...]
CMS-CR-2024-320.- Geneva : CERN, 2024 - 12 p. Fulltext: PDF;
In : 7th International Conference on Particle Physics and Astrophysics, Moscow, Russia, 22 - 25 Oct 2024

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