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2025-12-02
07:34
The Heavy Dark Photon Handbook: Cosmological and Astrophysical Bounds / Caputo, Andrea (CERN ; U. Rome La Sapienza (main) ; Weizmann Inst. ; INFN, Rome) ; Park, Jaeyoung (CERN ; Seoul Natl. U., Dept. Phys. Astron.) ; Yun, Seokhoon (IBS, Daejeon, CTPU)
We investigate cosmological and astrophysical constraints on dark photons with masses $\sim 10^{-1}$-$10^3$ MeV. [...]
arXiv:2511.15785 ; CTPU-PTC-25-42. - 2025 - 31.
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2025-12-02
05:45
Analytical Soft Functions for Heavy-Quark Final States at Hadron Colliders / Liu, Ze Long (CAS, Beijing) ; Monni, Pier Francesco (CERN)
We present the first computation of the complete two-loop, fully-differential soft function describing the production of a heavy-quark pair in association with a color-singlet system at hadron colliders. [...]
CERN-TH-2025-244 ; arXiv:2511.23280. - 5.
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2025-12-02
05:14
Scalar field effective potentials in de Sitter spacetime / García-Consuegra, Lucas Vicente (King's Coll. London (main)) ; Rajantie, Arttu (CERN ; Imperial Coll., London)
We investigate two different definitions of a scalar field effective potential in quantum field theory in de Sitter spacetime: the standard textbook definition, and the constraint effective potential proposed by O'Raifeartaigh et al. [...]
CERN-TH-2025-217 ; KCL-PH-TH/2025-1 ; Imperial-TP-2025-AR-1 ; arXiv:2511.23076. - 27.
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2025-12-01
20:13
The CMS Barrel Calorimeter Processor near production (BCP V2) board evaluation / Goadhouse, Stephen David (Virginia U.) ; Nikitas Loukass
The Barrel Calorimeter Processor (BCP), based on ATCA blade architecture, has been developed for the readout of the electromagnetic calorimeter (ECAL) and hadron calorimeter (HCAL) subdetectors of the CMS experiment. The BCP supports 120 optical receive channels of up to 25 Gbps, 72 optical transmit channels of up to 25 Gbps, an AMD XCVU13P UltraScale+ FPGA, and an embedded AMD Zynq UltraScale+ SoC. [...]
CMS-CR-2025-239.- 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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2025-12-01
20:13
The status of\\the CMS Muon Drift Tubes HL-LHC Upgrade and\\the Safety System for the new front-end / De Remigis, Paolo (INFN, Turin) /CMS Collaboration
To sustain the unprecedented radiation and rates of HL-LHC, the readout and trigger electronics for the Drift Tubes (DT) in CMS have been upgraded. The time digitization is implemented on the new OBDT board, and the data are streamed to the new back-end electronics, where event building and trigger primitive generation are performed. The development of a new hardware, called MONitor for SAfety (Monsa) system, monitors and enables each single OBDT. This report provides an update on the status of development and testing of the DT Upgrade electronics, with a focus on the newly introduced safety electronics..
CMS-CR-2025-245.- 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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2025-12-01
20:13
The CMS Barrel Calorimeter Processor near production (BCP V2) board evaluation / Goadhouse, Stephen David (Virginia U.) ; Nikitas Loukass
The Barrel Calorimeter Processor (BCP), based on ATCA blade architecture, has been developed for the readout of the electromagnetic calorimeter (ECAL) and hadron calorimeter (HCAL) subdetectors of the CMS experiment. The BCP supports 120 optical receive channels of up to 25 Gbps, 72 optical transmit channels of up to 25 Gbps, an AMD XCVU13P UltraScale+ FPGA, and an embedded AMD Zynq UltraScale+ SoC. [...]
CMS-CR-2025-239.- 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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2025-12-01
19:30
Recent advancements in the tau reconstruction and identification techniques in CMS / Cardini, Andrea (Oviedo U.) /CMS Collaboration
Tau leptons play a crucial role in studies of the Higgs boson and searches for Beyond the Standard Model physics at the present LHC and in its high luminosity upgrade. This talk presents the latest advancements in the reconstruction and identification of hadronic decays of tau leptons at the CMS experiment, both at the online and offline levels. [...]
CMS-CR-2025-277.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : The 18th International Workshop on Tau Lepton Physics (Tau2025), Marseille, Fr, 20 - 24 Oct 2025

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2025-12-01
19:30
First observation of tWZ production / Belvedere, Alberto (DESY) /CMS Collaboration
We present the first observation of single top quark production in association with a W and a Z boson in proton-proton collisions using 13 and 13.6 TeV data recorded with the CMS detector corresponding to integrated luminosities of 138 and 61.9 fb-1, respectively. Events are selected if they contain three or four charged leptons, which can be electrons or muons. [...]
CMS-CR-2025-266.- Geneva : CERN, 2025 - 12 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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2025-12-01
19:30
Determination of the strong coupling and its running from measurements of inclusive jet production at CMS / Guglielmi, Valentina (Zurich U.) /CMS Collaboration
The value of the strong coupling $\alpha_{S}$ is determined in a comprehensive analysis at next-to-next-to-leading order accuracy in quantum chromodynamics. The analysis uses double-differential cross section measurements from the CMS Collaboration at the CERN LHC of inclusive jet production in proton-proton collisions at centre-of-mass energies of 2.76, 7, 8, and 13\,TeV, combined with inclusive deep-inelastic data from HERA. [...]
CMS-CR-2025-265.- Geneva : CERN, 2025 - 10 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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2025-12-01
19:30
Shedding Light on Dark Matter via the Higgs Portal / Shivani Sanjay Lomte /CMS Collaboration
A selection of new results from the CMS experiment that probe Higgs-portal frameworks are presented. These searches target scenarios in which dark matter particles are produced in association with the Standard Model Higgs boson. [...]
CMS-CR-2025-264.- Geneva : CERN, 2025 - 6 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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