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CMS Conference Reports

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2023-05-22
15:25
Higgs properties (coupling, mass, and width) at CMS and ATLAS / Errico, Filippo (INFN, Rome ; Rome U.) /ATLAS, CMS and Higgs collaborations
Recent measurements of Higgs boson properties (coupling, mass, and width) performed by the ATLAS and CMS Collaborations will be summarised. All measurements shown were performed with the data collected at the LHC up to 2018..
CMS-CR-2023-050.- Geneva : CERN, 2023 - 5 p. Fulltext: PDF;
In : 57th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italy, 25 Mar - 1 Apr 2023

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2023-05-22
15:25
GEM Detectors for the CMS Endcap Muon System status of three new detector stations / Verwilligen, Piet (INFN, Bari) /CMS Collaboration
The High-Luminosity LHC (HL-LHC, or \textit{Phase-2} LHC) will deliver proton-proton collisions at 5-7.5 times the nominal LHC luminosity, with an expected number of 140-200 pp-interactions per bunch crossing (Pile-up or PU). To maintain the performance of muon triggering and reconstruction under high background, the forward part of the Muon spectrometer of the CMS experiment will be upgraded with Gas Electron Multipliers (GEM) and improved Resistive Plate Chambers (\textit{i}RPC) detectors. [...]
arXiv:2303.17244; CMS-CR-2023-044.- Geneva : CERN, 2023 - 5 p. Fulltext: 2303.17244 - PDF; CR2023_044 - PDF;
In : 7th International Conference on Micro Pattern Gaseous Detectors 2022 (MPGD 2022), Rehovot, Israel, 11 - 16 Dec 2022

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2023-05-16
09:17
The CMS Enfourneur n.2 a huge, lean, and safe machine for LS3 ECAL upgrade / Bianco, Roberta (INFN, Rome) /CMS Collaboration
In preparation for the High Luminosity phase of the LHC at CERN, to start in 2029, a refurbishment of the electronics of the CMS electromagnetic calorimeter (ECAL) is planned. The ECAL barrel section is organized in 36 elements called Supermodules (SMs), 18 in each side. [...]
CMS-CR-2023-045.- Geneva : CERN, 2023 - 5 p. Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023

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2023-05-15
15:00
Optimizing electron and photon reconstruction using deep learning application to the CMS electromagnetic calorimeter / Valsecchi, Davide (Zurich, ETH) /CMS Collaboration
The reconstruction of electrons and photons in CMS depends on topological clustering of the energy deposited by an incident particle in different crystals of the electromagnetic calorimeter (ECAL). These clusters are formed by aggregating neighbouring crystals according to the expected topology of an electromagnetic shower in the ECAL. [...]
CMS-CR-2023-039.- Geneva : CERN, 2023 - 6 p. Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022

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2023-04-24
17:21
A Study of a Quartz Bar Detector in the Forward Region of the CMS Experiment at LHC / Khakzad, Mohsen (IPM, Tehran) ; Samoylenko, Vladimir (Serpukhov, IHEP) ; Baechler, Joachim (CERN) ; Baud, Alexandre (Moscow, ITEP) ; Druzhkin, Dmitry (Tomsk State U.) ; Kaynak, Berkan (Istanbul U.) ; Stefanovitch, Roman (Minsk, Inst. Nucl. Problems) ; Wagner, M. J ; Atakisi, Ismail Okan (Bogazici U.) ; Kaya, Mithat (Bogazici U.) et al.
In high rapidity regions of experiments at colliders (e.g. Large Hadron Collider LHC), along the direction of the interacting beams, the conditions are particularly challenging and the detectors need to have excellent time resolution, spatial resolution, high-rate capability and radiation resistance. [...]
CMS-CR-2020-169.- Geneva : CERN, 2020 - 30 p. Fulltext: PDF;
In : 3rd International Turkey-Iran Joint Conference on LHC Physics, Istanbul, Turkey, 10 - 15 Jun 2019

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2023-04-24
10:10
Particle Flow Reconstruction on Heterogeneous Architecture for CMS / Bocci, Andrea (CERN) ; Das, Abhishek (Notre Dame U.) ; Hatakeyama, Kenichi (Baylor U.) ; Lorkowski, Florian (DESY) ; Missiroli, Marino (PSI, Villigen) ; Pantaleo, Felice (CERN) ; Samudio, Jonathan Jacob (Baylor U.) ; Saunders, Mark Douglas (Baylor U.) /CMS Collaboration
The higher instantaneous luminosity expected during the upcoming years of LHC Run 3 operations will impose challenges for CMS event reconstruction, and this will be amplified in the HL-LHC era, where luminosity and pileup rates are expected to be significantly higher. One of the approaches for CMS to cope with this challenge is to utilize heterogeneous computing architectures in order to accelerate event reconstruction. [...]
CMS-CR-2023-043.- Geneva : CERN, 2023 - 6 p. Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022

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2023-04-17
15:36
Search for CP violation in the tau Yukawa coupling with CMS / Sessini, Mario Antoine (Strasbourg, IPHC) /CMS Collaboration
The proceedings present a measurement of the charge-parity (CP) properties of the Higgs boson in its coupling to tau leptons. To date, all measurements of its interactions with fermions and bosons are consistent with the standard model prediction of a purely scalar neutral Higgs boson nature and exclude the purely pseudo-scalar scenario. [...]
CMS-CR-2023-031.- Geneva : CERN, 2023 - 6 p. Fulltext: PDF;
In : Lake Louise Winter Institute 2023, Lake Louise, Alberta, Ca, 19 - 24 Feb 2023

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2023-04-12
11:05
Techniques for mass production of large-sized GEM foil in Korea for CMS phase-2 upgrade / Yoon, I. (Seoul Natl. U. (main))
This study presents techniques for the mass production of large-sized GEM foils for the CMS phase-2 upgrade in Korea. [...]
arXiv:2303.15302 ; CMS-CR-2023-030. - 2023. - 4 p.
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2023-04-12
11:05
Studies of HV discharges in GEM detectors for the CMS Endcap Muon System / Calzaferri, Simone (INFN, Pavia ; Pavia U.) /CMS Collaboration
The Large Hadron Collider (LHC) and the experiments installed there are being upgraded for the High Luminosity LHC project that will provide a greatly enlarged data sample in the search for physics beyond the Standard Model. During Long Shutdown 2, from 2018 to the first months of 2022, some of these upgrades were completed. [...]
CMS-CR-2023-017.- Geneva : CERN, 2023 - 5 p. Fulltext: PDF;
In : 7th International Conference on Micro Pattern Gaseous Detectors 2022 (MPGD 2022), Rehovot, Israel, 11 - 16 Dec 2022

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2023-04-03
15:12
Evolution of the CMS Submission Infrastructure to support heterogeneous resources in the LHC Run 3 / Perez-Calero Yzquierdo, Antonio Maria (Madrid, CIEMAT) ; Kizinevic, Edita (CERN) ; Khan, Farrukh Aftab (Fermilab) ; Kim, Hyunwoo (Fermilab) ; Mascheroni, Marco (UC, San Diego) ; Acosta Flechas, Maria (Fermilab) ; Tsipinakis, Nikos (CERN) ; Haleem, Saqib (Quaid-i-Azam U.) /CMS Collaboration
The landscape of computing power available for the CMS experiment is rapidly evolving, from a scenario dominated by x86 processors deployed at WLCG sites towards a more diverse mixture of Grid, HPC, and Cloud facilities, incorporating a higher fraction of non-CPU components such as GPUs. Using these facilities heterogeneous resources efficiently to process the vast amounts of data to be collected in the LHC Run3 and beyond, is key to CMS achieving its scientific goals. [...]
CMS-CR-2023-035.- Geneva : CERN, 2023 - 6 p. Fulltext: PDF;
In : 21st International Workshop on Advanced Computing and Analysis Techniques in Physics Research, Bari, It, 24 - 28 Oct 2022

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