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2025-11-17
11:16
Exploring new physics in the Dark Sector at CMS / Kai Hong Law /CMS Collaboration
A selection of new results from the CMS experiment is presented. These results focus on searches for dark-sector particles using Run 2 or Run 3 data. [...]
CMS-CR-2025-246.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : The 32nd International Symposium on Lepton Photon Interactions at High Energies (Lepton Photon 2025), Madison, Wisconsin, Us, 25 - 29 Aug 2025

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2025-11-10
16:50
Readout and testing procedures to characterize the CMS inner tracker pixel detector for HL-LHC / Dinardo, Mauro (INFN, Milan Bicocca ; Milan Bicocca U.) /CMS Collaboration
The LHC will be upgraded to the High Luminosity LHC in the coming years, aiming to reach an instantaneous luminosity of up to $5 \times 10^{34}$\,cm$^{-2}$s$^{-1}$. The CMS Tracker detectors will be replaced and significantly upgraded to cope with the increased radiation fluence while ensuring excellent performance. [...]
CMS-CR-2025-236.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 33rd International Workshop on Vertex Detectors (VERTEX 2025), Knoxville, Tennessee, United States, 25 - 29 Aug 2025

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2025-11-10
16:50
The CMS Tracker Upgrade for Phase-2 Meeting the Challenges of the HL-LHC / Magherini, Matteo (CERN) /CMS Collaboration
The High-Luminosity Large Hadron Collider (HL-LHC) will significantly increase the instantaneous luminosity of proton-proton collisions, pushing the CMS experiment into a regime of extreme radiation levels, high particle multiplicities, and unprecedented data rates. To maintain and extend the physics performance of the CMS detector under these conditions, a complete replacement of the tracking system is underway as part of the Phase-2 Upgrade. [...]
CMS-CR-2025-221.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : 33rd International Workshop on Vertex Detectors (VERTEX 2025), Knoxville, Tennessee, United States, 25 - 29 Aug 2025

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2025-11-10
16:50
Bare Module Testing for the CMS Vertex Detector Upgrade / Jesse Harris of the CMS collaboration /CMS Collaboration
The High-Luminosity LHC will continue exploring physics beyond the standard model with proton-proton collisions at ten times the luminosity of previous LHC runs. The physics program depends on precise measurements of charged particles near the beams. [...]
CMS-CR-2025-216.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : 33rd International Workshop on Vertex Detectors (VERTEX 2025), Knoxville, Tennessee, United States, 25 - 29 Aug 2025

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2025-11-10
16:50
High-Throughput Packet Aggregator for the Back-End DAQ of CERN CMS HGCAL Detector / Rosado, Martim (CERN) ; Tomas, Pedro ; Roma, Nuno ; David Tinoco Mendes, Andre (CERN) /CMS Collaboration
The Phase 2 upgrade of CERN LHC accelerator requires the CMS detector to replace its endcap calorimeters with the new HGCAL. Each of the 96 back-end DAQ FPGAs will process LHC collision data from 108 input optical fibre pairs operating at 10 Gb/s and will have to route the aggregated data into 12 output optical fibre pairs operating at 24 Gb/s. [...]
CMS-CR-2025-127.- Geneva : CERN, 2025 - 6 p. Fulltext: PDF;
In : IEEE International Symposium on Circuits and Systems, London, United Kingdom, 25 - 28 May 2025

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2025-11-10
10:50
Results of the CMS Phase-2 TEPX system tests / Lukashenko, Valeriia (Zurich U.)
The Compact Muon Solenoid (CMS) detector will undergo a major upgrade (Phase-2) to take advantage of the increased luminosity provided by the High-Luminosity LHC (HL-LHC). As part of this upgrade, the Tracker Endcap Pixel detector (TEPX) will be introduced as a subsystem of the Phase-2 Inner Tracker, extending the pseudorapidity coverage up to $\lvert \eta \rvert < 4$. [...]
CMS-CR-2025-211.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2025, Rethymno, Crete, Gr, 6 - 10 Oct 2025

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2025-11-10
10:43
Search for black holes and sphalerons using novel machine learning techniques at CMS / Vami, Tamas Almos (UC, Santa Barbara) ; Zhang, Danyi (UC, Santa Barbara) /CMS Collaboration
A comprehensive search for microscopic black holes and electroweak sphalerons is presented, using proton-proton collision data collected by the CMS detector during 2016-2018, corresponding to an integrated luminosity of $138~\mathrm{~fb}^{-1}$. A novel tool has been developed to identify collider events with distinct kinematic features, based on the phase-space distance between events. [...]
CMS-CR-2025-237.- Geneva : CERN, 2025 - 7 p. Fulltext: PDF;
In : Beyond Standard Model: From Theory to Experiment 2025, Istanbul, Tr, 6 - 9 Oct 2025

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2025-11-10
10:43
The Inner Tracker upgrade of the CMS Experiment for the HL-LHC: design and validation via system tests / Luongo, Fabio (INFN, Turin ; Turin U.) /CMS Collaboration
The CMS Collaboration is building a new Inner Tracker to fully exploit the high-luminosity upgrade of the LHC (HL-LHC), aimed at delivering by 2041 an integrated luminosity between $ \mathrm{ 3000 \, fb^{-1} } $ and $ \mathrm{ 4000 \, fb^{-1} } $, and to cope with its more challenging operating conditions, such as the unprecedented radiation damage and the average pileup up to 200. The Inner Tracker features six times the granularity of the current Pixel Tracker of CMS, with $ \mathrm{ 25 \, \mu m \times 100 \, \mu m } $ pixel cells, the support for hit rates from particles up to $ \mathrm{ 3.5 \, GHz/cm^2 } $, and an improved radiation hardness to a total ionizing dose of $ \mathrm{ 1.2 \, Grad } $ and to a $ \mathrm{ 1 \, MeV } $-neutron-equivalent fluence of $ \mathrm{ 2.3 \times 10^{16} / cm^2 } $. [...]
CMS-CR-2025-228.- Geneva : CERN, 2025 - 12 p. Fulltext: PDF;
In : 17th Topical Seminar on Innovative Particle and Radiation Detectors , Siena, It, 15 - 19 Sep 2025

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2025-11-10
10:43
The CMS High Granularity Calorimeter trigger primitives: an overview of their implementation and optimization / Manoni, Martina (Ecole Polytechnique) /CMS Collaboration
As part of its upgrade for the High-Luminosity LHC (HL-LHC), the CMS Collaboration has chosen a novel High Granularity Calorimeter (HGCAL) to replace the endcap calorimeters. The HGCAL features fine segmentation in both the transverse and longitudinal directions, resulting in approximately six million readout channels in total. [...]
CMS-CR-2025-217.- Geneva : CERN, 2025 - 10 p. Fulltext: PDF;
In : 17th Topical Seminar on Innovative Particle and Radiation Detectors , Siena, It, 15 - 19 Sep 2025

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2025-11-10
10:43
Advancements in Tau Reconstruction and Identification with the CMS experiment / Mastrapasqua, Paola (Louvain U.) /CMS Collaboration
In recent years, the CMS experiment has achieved significant progress in the reconstruction and identification of hadronically decaying tau leptons, largely driven by advances in machine learning techniques. The current CMS standard employs the Hadron Plus Strips algorithm for hadronic tau reconstruction and the latest DeepTau algorithm, based on Convolutional Neural Networks, for the identification step. [...]
CMS-CR-2025-214.- Geneva : CERN, 2025 - 8 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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