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CMS Conference Reports

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2026-02-24
13:12
The evolution of the CMS Computing model towards the HL-LHC / Perez-Calero Yzquierdo, Antonio Maria (Madrid, CIEMAT) /CMS Collaboration
With the approaching High Luminosity phase of the LHC programme (HL-LHC), scheduled to start in 2030, the Offline Software and Computing group of the CMS collaboration is reviewing the experiment's Computing Model to ensure its readiness for the computing challenges the HL-LHC poses. An in-depth revision of the current model, tools, and practices is being carried out, along with a roadmap of R\&D; activities to evolve them. [...]
CMS-CR-2025-279.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025

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2026-02-24
13:12
Advanced Algorithms for 4D Vertex Reconstruction with the MIP Timing Detector at the HL-LHC in CMS / Raffaele Delli Gatti /CMS Collaboration
The High-Luminosity phase of the Large Hadron Collider (HL-LHC) will pose significant challenges to primary vertex reconstruction, which is crucial for many physics analyses, due to the substantial increase of pileup in collisions. To mitigate this effect, the upgraded CMS experiment will include the MIP Timing Detector (MTD) to measure the time of arrival of charged particles with a time resolution of 30-60 picoseconds. [...]
CMS-CR-2025-140.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : Incontri di Fisica delle Alte Energie, Cagliari, 9 - 11 April

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2026-02-24
13:12
Progress in the use of the MIP timing detector for event reconstruction at HL-LHC in CMS / Raffaele Delli Gatti /CMS Collaboration
The High-Luminosity LHC project aims to increase the luminosity above the design value of the LHC starting from 2030. Due to the higher collision rate, the CMS detector will require a significant upgrade; a key addition will be the MTD, a new sub-detector designed to measure minimum ionizing particles (MIPs) with a time resolution of 30-60 picoseconds. The expected increase in pileup events will impact the detectors' performance in reconstructing collision events. [...]
CMS-CR-2025-006.- Geneva : CERN, 2025 - 5 p. Fulltext: PDF;
In : 110th Congresso Nazionale della Societa Italiana di Fisica (SIF 2024), Rome, Italy, 11-13 Sep 2024

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2026-02-24
13:12
Muon Tracking at the CMS High-Level Trigger for the HL-LHC Upgrade / Ferragina, Luca (INFN, Bologna ; Bologna U.) /CMS Collaboration
The High-Luminosity Upgrade for the LHC is rapidly approaching and the CMS experiment will fundamentally change to take advantage of the new physics possibilities offered by the collider's upgrade. In this context, the event reconstruction, both offline and at the High-Level Trigger (HLT), is undergoing significant development to fully exploit the detectors' upgrades while aiming to maintain remarkable performance under harsh data-taking conditions: roughly 200 proton-proton collisions take place at every HL-LHC bunch crossing. [...]
CMS-CR-2026-012.- Geneva : CERN, 2026 - 10 p. Fulltext: PDF;
In : Connecting of The Dots 2025, Tokyo, Jp, 10 - 14 Nov 2025

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2026-02-13
17:31
Measurements of top quark asymmetries / Faltermann, Nils (KIT, Karlsruhe, EKP) /ATLAS and CMS Collaborations
The study of top quark asymmetries at the LHC provides an excellent opportunity to probe subtle differences in the production of top quarks and antiquarks made by the standard model of particle physics. In this contribution, the latest experimental results on this topic by the ATLAS and CMS Collaborations are summarized..
CMS-CR-2026-001.- Geneva : CERN, 2026 - 7 p. Fulltext: PDF;
In : 18th International Workshop on Top Quark Physics (TOP2025), Seoul, South Korea, 21 - 26 Sep 2025

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2026-02-13
15:08
Enhancing CMS Passive Material Modeling in Track Reconstruction Using ACTS / Damenti, Lorenzo (INFN, Florence ; Florence U.) /CMS Collaboration
The tracker passive material cannot be neglected within the charged particle track reconstruction algorithm. In particular, track propagation must account for material effects such as multiple scattering and energy loss. [...]
CMS-CR-2026-008.- Geneva : CERN, 2026 - 7 p. Fulltext: PDF;
In : Connecting of The Dots 2025, Tokyo, Jp, 10 - 14 Nov 2025

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2026-02-11
16:14
Top physics in ATLAS and CMS / Burgard, Carsten (Hamburg U.) /ATLAS and CMS Collaborations
Top-quark physics at the Large Hadron Collider has entered a precision era, enabled by the full Run 2 data set and the first results from Run 3. The large production cross section of top quarks allows for a diverse experimental program ranging from precision measurements of Standard Model parameters to searches for rare processes and indirect probes of physics beyond the Standard Model. [...]
CMS-CR-2026-005.- Geneva : CERN, 2026 - 13 p. Fulltext: PDF;
In : Corfu2025 Workshop on the Standard Model and Beyond, Corfu, Gr, 24 Aug - 3 Sep 2025

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2026-02-11
15:56
Simulation truth for optimal CMS pixel tracking / Jan Gerrit Schulz /CMS Collaboration
In the CMS experiment, pixel tracking means reconstructing charged particle trajectories based on hits in silicon pixel modules. This technique plays a major role in High Level Trigger (HLT) event reconstruction. [...]
CMS-CR-2026-014.- Geneva : CERN, 2026 - 7 p. Fulltext: PDF;
In : Connecting of The Dots 2025, Tokyo, Jp, 10 - 14 Nov 2025

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2026-02-11
15:56
Optimization and Outer Tracker Extension of the Cellular Automaton Algorithm for CMS Phase-2 HLT Tracking / Jan Gerrit Schulz /CMS Collaboration
The Phase-2 Upgrade for the CMS experiment at the High-Luminosity Large Hadron Collider introduces new and improved detectors, including a new tracker. It will enable higher-quality track reconstruction in the pixel detector, particularly in the forward region (pseudorapidity $\lvert\eta\rvert > 3$), by recording hits in many more layers than is currently possible. [...]
CMS-CR-2026-009.- Geneva : CERN, 2026 - 11 p. Fulltext: PDF;
In : Connecting of The Dots 2025, Tokyo, Jp, 10 - 14 Nov 2025

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2026-02-11
15:54
Humanising Science through CMS Outreach initiatives / Stathaki, Nefeli (CERN) /CMS Collaboration
In the increasingly fragmented media landscape where there is an overload of information reaching any member of the public, it is a human connection that cuts through. To maintain public support for the Large Hadron Collider (LHC) experiments and keep audiences invested in the continuous process of science, the research must be humanised. [...]
CMS-CR-2025-281.- Geneva : CERN, 2025 - 6 p. - Published in : 10.22323/1.485.0599 Fulltext: PDF; Publication: PDF;
In : 2025 European Physical Society Conference on High Energy Physics (EPS-HEP 2025), Marseille, France, 7 - 11 Jul 2025

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