CERN Accelerating science

CMS Preprints

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2025-03-12
21:09
Measurements of the inclusive W and Z boson production cross sections and their ratios in proton-proton collisions at $ \sqrt{s}= $ 13.6 TeV
Measurements are presented of the W and Z boson production cross sections in proton-proton collisions at a center-of-mass energy of 13.6 TeV. [...]
CERN-EP-2025-013 ; CMS-SMP-22-017-003.
- 2025
Additional information for the analysis - CMS AuthorList - Fulltext

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2025-03-12
09:17
Small-$ x $ evolution of gluon fields from incoherent $ \mathrm{J}/\psi $ photoproduction in ultraperipheral PbPb collisions
Incoherent $ \mathrm{J}/\psi $ photoproduction in heavy ion ultraperipheral collisions (UPCs), in which the photon interacts with localized, fluctuating gluonic hotspots rather than the entire nucleus, provides a unique probe of those fluctuations. [...]
CERN-EP-2025-030 ; CMS-HIN-23-009-003.
- 2025
Additional information for the analysis - CMS AuthorList - Fulltext

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2025-03-11
21:27
Search for the associated production of a Higgs boson with a charm quark in the diphoton decay channel in pp collisions at $ \sqrt{s}= $ 13 TeV
This paper presents the first search for the associated production of a Higgs boson with a charm quark ($ \mathrm{c}\mathrm{H} $), with the Higgs boson decaying to two photons. [...]
CERN-EP-2025-010 ; CMS-HIG-23-010-003.
- 2025
Additional information for the analysis - CMS AuthorList - Fulltext

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2025-03-11
14:07
GEM Detector Fabrication and Characterization Facility at Panjab University / Kaur, Anureet (Panjab U.) /CMS Collaboration
The Gas Electron Multiplier(GEM) detector is one of the most important Micro-PatternGaseous Detector (MPGD) first introduced in 1997 by F. Sauli at CERN. [...]
CMS-CR-2025-025.- Geneva : CERN, 2025 - 5 p. Fulltext: PDF;
In : 26th DAE-BRNS High Energy Physics Symposium 2024, Varanasi, India, 19 - 23 Dec 2024

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2025-03-11
14:07
Kalman filter for muon reconstruction in the CMS Phase-2 endcap calorimeter / Matthewman, Mark (Purdue U.) ; Rovere, Marco (CERN) ; Waltenberger, Wolfgang (Vienna, OAW) ; Brondolin, Erica (CERN) /CMS Collaboration
The High Luminosity phase of the LHC (HL-LHC) will offer a greatly increased number of events for more precise standard model measurements and BSM searches. To cope with the harsh environment created by numerous simultaneous proton-proton collisions, the CMS Collaboration has begun construction of a new endcap calorimeter, the High-Granularity Calorimeters (HGCAL). [...]
CMS-CR-2025-073.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Pl, 19 - 25 Oct 2024

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2025-03-11
14:07
Operational experience from the Spanish CMS Analysis Facility at CIEMAT / Cardenas-Montes, M ; Delgado, J ; Delgado Peris, Antonio (Madrid, CIEMAT) ; Flix Molina, Jose (Madrid, CIEMAT) ; Hernandez, Jonathan Matthew (UC, San Diego) ; Morcillo Perez, Cecilia Maria (Madrid, CIEMAT) ; Perez-Calero Yzquierdo, Antonio Maria (Madrid, CIEMAT) ; Rodriguez Calonge, F.J ; Torradeflot, F /CMS Collaboration
The anticipated surge in data volumes generated by the LHC in the coming years, especially during the High-Luminosity LHC phase, will reshape how physicists conduct their analysis. This necessitates a shift in programming paradigms and techniques for the final stages of analysis. [...]
CMS-CR-2025-072.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Pl, 19 - 25 Oct 2024

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2025-03-11
14:07
Heterogeneous reconstruction of hadronic particle flow clusters with the Alpaka Portability Library / Bocci, Andrea (CERN) ; Das, Abhishek (Notre Dame U.) ; Hatakeyama, Kenichi (Baylor U.) ; Lorkowski, Florian (DESY) ; Pantaleo, Felice (CERN) ; Redjeb, Wahid (Aachen, Tech. Hochsch.) ; Samudio, Jonathan Jacob (Baylor U.) ; Saunders, Mark Douglas (Baylor U.) /CMS Collaboration
In response to increasing data challenges, CMS has adopted the use of GPU offloading at the High-Level Trigger (HLT). However, GPU code is often hardware specific, and increases the maintenance burden on software development. [...]
CMS-CR-2025-066.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Pl, 19 - 25 Oct 2024

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2025-03-11
14:07
Comparative analysis of Machine Learning-based eviction techniques and LRU mechanisms for CMS data caching / Delgado Peris, Antonio (Madrid, CIEMAT) ; Flix Molina, Jose (Madrid, CIEMAT) ; Hernandez, Jonathan Matthew (UC, San Diego) ; Perez-Calero Yzquierdo, Antonio Maria (Madrid, CIEMAT) ; Rodriguez Calonge, F.J ; Serrano, P ; Sikora, A ; Vilalta, J /CMS Collaboration
The Large Hadron Collider (LHC) at CERN in Geneva is preparing for a major upgrade that will improve both its accelerator and particle detectors. This strategic move comes in anticipation of a tenfold increase in proton-proton collisions, expected to kick off by 2030 in the upcoming high-luminosity phase. [...]
CMS-CR-2025-064.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Pl, 19 - 25 Oct 2024

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2025-03-11
14:07
Exploiting Kubernetes to Simplify the Deployment and Management of the Multi-purpose CMS Pilot Job Factory / Mascheroni, Marco (UC, San Diego) ; Jeffrey Michael Dost ; Bockelman, Brian Paul (Wisconsin U., Madison) ; Colby Walsworth ; Kizinevic, Edita (CERN) ; Thiltges, John Frederick (Nebraska U.) ; Albert, Merina (Fermilab) ; Zokaite, Vaiva (Vilnius U.) ; Frank Wurthwein /CMS Collaboration
GlideinWMS, a widely utilized workload management system in high-energy physics (HEP) research, serves as the backbone for efficient job provisioning across distributed computing resources. It is utilized by various experiments and organizations, including CMS, OSG, Dune, and FIFE, IGWN, JLab, GlueX, IceCube, to create HTCondor pools as large as 600k cores. [...]
CMS-CR-2025-045.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Pl, 19 - 25 Oct 2024

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2025-03-11
14:07
Refining Jets for CMS Run 3 using Fast Simulation / Boncukcu, Dorukhan (Istanbul Tech. U.) ; Acelya Deniz Gungordu ; Bein, Samuel Louis (Louvain U.) ; Pedro, Kevin Jerome (Fermilab) ; Wolf, Moritz Jonas (Hamburg U.) ; Ekim Vural, M ; Cakir, Muammer Altan (Istanbul Tech. U.) /CMS Collaboration
As the LHC moves into its high-luminosity phase, the CMS experiment must handle more complex data collected at much higher rates. While the Geant4-based simulation application (FullSim) provides highly accurate simulation to complement real data, FullSim's intensive consumption of computing resources becomes an increasing liability as the rates increase, while faster tools offer an advantage. [...]
CMS-CR-2025-041.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 27th International Conference on Computing in High Energy & Nuclear Physics, Kraków, Pl, 19 - 25 Oct 2024

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