CERN Accelerating science

CMS Detector Performance Summaries

Darreres entrades:
2025-12-01
19:26
Enhancing CMS Passive Material Modeling in Track Reconstruction Using ACTS /CMS Collaboration
This exploratory study investigates whether the modelling of passive material in CMS track reconstruction can be improved through the use of an external software framework, A Common Tracking Software (ACTS)..
CMS-DP-2025-085; CERN-CMS-DP-2025-085.- Geneva : CERN, 2025 - 5 p. Fulltext: PDF;

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2025-12-01
19:26
Performance of Level-1 Trigger e/$\gamma$ in 2025 proton-proton collisions at $\sqrt{s}$ = 13.6 TeV /CMS Collaboration
The performance of the Level-1 Trigger e/$\gamma$ objects during the 2025 proton-proton data taking is presented in this note..
CMS-DP-2025-084; CERN-CMS-DP-2025-084.- Geneva : CERN, 2025 - 14 p. Fulltext: PDF;

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2025-12-01
19:26
Muon Tracking at the CMS High-Level Trigger for the HL-LHC Upgrade /CMS Collaboration
This note outlines the muon tracking performance at the CMS High-Level Trigger for the HL-LHC Upgrade. The Phase-2 muon system and the proposed HLT reconstruction strategies are described. [...]
CMS-DP-2025-083; CERN-CMS-DP-2025-083.- Geneva : CERN, 2025 - 41 p. Fulltext: PDF;

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2025-12-01
19:26
Next Generation Triggers Demonstrator: Time Variation of the Calibrations and System Monitoring /CMS Collaboration
This note presents an overview of the Next Generation Triggers (NGT) Demonstrator in CMS. It summarizes studies of the effect of different calibrations on physics observables and their time-dependence. [...]
CMS-DP-2025-082; CERN-CMS-DP-2025-082.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;

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2025-11-17
11:18
Flavour tagging performance of the updated Unified Particle Transformer algorithm with the CMS experiment at $\sqrt{s}$=13.6 TeV /CMS Collaboration
Recent advances in machine learning have delivered substantial gains across high-energy physics, particularly in object identification. In jet flavour classification, increasingly sophisticated architectures exploit low-level inputs and their correlations to improve performance. [...]
CMS-DP-2025-081; CERN-CMS-DP-2025-081.- Geneva : CERN, 2025 - 36 p. Fulltext: PDF;

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2025-11-17
11:18
Jet Mass Reconstruction in the CMS Phase-2 Level-1 Trigger /CMS Collaboration
The Phase-2 upgrade of the CMS detector for the High Luminosity upgrade of the LHC (HL-LHC) includes the introduction of many new capabilities into the Level-1 trigger (L1T) subsystem. The latency will increase to $\sim$12.5 $\mu$s and the output bandwidth will increase to $\sim$750 kHz, while tracking and high-granularity calorimeter information will be available for the first time. [...]
CMS-DP-2025-080; CERN-CMS-DP-2025-080.- Geneva : CERN, 2025 - 18 p. Fulltext: PDF;

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2025-11-17
11:18
Quality Control of the OBDT\_Theta board production for the Drift Tube Phase 2 Upgrade /CMS Collaboration
A dedicated test setup has been prepared at the CIEMAT laboratory in Madrid to perform the quality control of the new electronics boards produced for the Phase-2 Upgrade of the CMS Drift Tubes detector. A custom software framework was developed to select and efficiently execute a range of relevant tests, with the results analyzed and stored for future reference. This note presents a description of the setup and some of the results obtained from the first 137 OBDT\_Theta boards tested..
CMS-DP-2025-079; CERN-CMS-DP-2025-079.- Geneva : CERN, 2025 - 14 p. Fulltext: PDF;

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2025-11-10
10:38
Performance of GPU-accelerated lossless compression for CMS Data using ROOT TTree and RNTuple /CMS Collaboration
Efficient lossless compression is necessary to reduce storage while maintaining accurate physics performance. This note reports on the performance of lossless compression algorithms for RAW data storage in Run 3 and Phase 2 simDigis, comparing new RNTuple data format with TTree format..
CMS-DP-2025-078; CERN-CMS-DP-2025-078.- Geneva : CERN, 2025 - 25 p. Fulltext: PDF;

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2025-11-10
10:38
SimPixelTracks: A new tool for analyzing Patatrack pixel tracking performance /CMS Collaboration
This note introduces SimPixelTracks, a new tool for evaluating the performance of Patatrack pixel tracking in the CMS experiment. It provides simulation truth for all intermediate objects of the Patatrack algorithm and knows how those objects are treated in the actual reconstruction code. [...]
CMS-DP-2025-077; CERN-CMS-DP-2025-077.- Geneva : CERN, 2025 - 36 p. Fulltext: PDF;

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2025-11-10
10:38
Performance of CMS pixel tracking at the High-Level Trigger for Phase-2 /CMS Collaboration
This note compares the physics and computing performance of the current and improved pixel tracking algorithms for the CMS experiment in Phase-2, with a focus on their application in the High-Level Trigger..
CMS-DP-2025-076; CERN-CMS-DP-2025-076.- Geneva : CERN, 2025 - 39 p.

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