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2025-04-07
15:34
Measurement of substructure-dependent suppression of large-radius jets with charged particles in Pb+Pb collisions with ATLAS
Measurements of jet substructure in Pb+Pb collisions provide key insights into the mechanism of jet quenching in the hot and dense QCD medium created in these collisions. [...]
CERN-EP-2025-078. - 2025
Fulltext - Previous draft version

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2025-04-07
14:30
Upgrade of the CMS Electromagnetic Calorimeter for the High-Luminosity LHC / Lavizzari, Giulia (INFN, Milan Bicocca ; Milan Bicocca U.)
The High Luminosity upgrade of the LHC (HL-LHC) at CERN will provide unprecedented instantaneous and integrated luminosities of around 5 x 1034 cm−2 s−1 and 3000/fb, respectively. The expected average of 140 to 200 collisions per bunch-crossing represents a severe challenge for the detectors. [...]
CMS-CR-2025-099.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : The International Conference on New Frontiers in Physics 2024, Kolymbari, Gr, 26 Aug - 4 Sep 2024

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2025-04-07
14:30
First observation of the η→4μ decay with the CMS detector / Rossin, Roberto (INFN, Padua ; Padua U.) /CMS Collaboration
The first observation of the rare η→μ+μ−μ+μ− double-Dalitz decay is presented. The analysis is based on data collected by the CMS experiment at the CERN LHC operating at the centre-of-mass energy of √s=13TeV. [...]
CMS-CR-2025-092.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : Multiplicity-dependent heavy flavour production at the LHCb experiment

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2025-04-05
04:45
The FCC integrated programme: a physics manifesto / Blondel, Alain (LPNHE, Paris ; Geneva U.) ; Grojean, Christophe (DESY) ; Janot, Patrick (CERN) ; Rajagopalan, Srini (Brookhaven) ; Wilkinson, Guy (CERN ; Oxford U.)
The FCC integrated programme comprises an e+e− high-luminosity circular collider that will produce very large samples of data in an energy range 88≤√s≤365 GeV, followed by a high-energy pp machine that, with the current baseline plan, will operate at a collision energy of around 85 TeV and deliver datasets an order of magnitude larger than those of the HL-LHC. [...]
arXiv:2504.02634. - 18.
Fulltext

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2025-04-05
04:44
Input from the SND@LHC collaboration to the 2026 Update to the European Strategy for Particle Physics / SND@LHC Collaboration
By observing collider neutrino interactions of different flavours, the SND@LHC and Faser experiments have shown that the LHC can make interesting contributions to neutrino physics. [...]
arXiv:2503.24233. - 15.
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2025-04-05
04:44
Gravitational Wave with Domain Wall Dominance / Hong, Sungwoo (KAIST, Taejon) ; Lee, Sung Mook (KAIST, Taejon ; CERN) ; Liang, Qiuyue (Tokyo U., IPMU)
Domain walls (DWs) can be produced when a discrete symmetry is spontaneously broken, and long-lived DWs can dominate the energy density of the universe. [...]
CERN-TH-2025-070 ; arXiv:2504.02462. - 15.
Fulltext

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2025-04-05
04:40
Recent results on strangeness enhancement in small collision systems with ALICE / Pucillo, Sara (Turin U.)
Quantum Chromodynamics (QCD) predicts that, at sufficiently high temperature and energy density, nuclear matter undergoes a phase transition from confined hadrons to a deconfined state of quarks and gluons known as the quark-gluon plasma (QGP). [...]
arXiv:2504.02527. - 8.
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2025-04-04
15:17
Deriving the Normal Form F Terms with SUSSIX Simulation Analysis / Schmidt, Frank
Normal Form techniques have been provided to MAD-X via the PTC Code. [...]
CERN-ACC-2024-0006. - 2024 - 25.

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2025-04-04
10:35
First observation of the ϕ (1020) meson in the K+K− mass spectrum of ultra-pheripheral PbPb collisions at forward rapidity /LHCb Collaboration
The first observation of the ϕ(1020) meson in the invariant-mass distribution of K+K− meson pairs produced in ultra-peripheral PbPb interactions at forward rapidity, in the range 2.0-4.5, is presented. The PbPb data were collected by the LHCb experiment in 2018 at a nucleon-nucleon center-of-mass energy √snn=5.02 TeV, and correspond to an integrated luminosity of 228±10μb−1 [...]
LHCb-CONF-2025-001; CERN-LHCb-CONF-2025-001.- Geneva : CERN, 2025 Fulltext: PDF;
In : 31st International Conference on Ultra-relativistic Nucleus-Nucleus Collisions, Frankfurt, De, 6 - 12 Apr 2025

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2025-04-04
04:06
Precision cross-sections for advancing cosmic-ray physics and other applications: a comprehensive programme for the next decade / Maurin, D. (LPSC, Grenoble) ; Audouin, L. (IJCLab, Orsay) ; Berti, E. (INFN, Florence) ; Coppin, P. (U. Geneva (main)) ; Di Mauro, M. (INFN, Turin) ; von Doetinchem, P. (Hawaii U.) ; Donato, F. (INFN, Turin ; Turin U. ; CERN) ; Evoli, C. (GSSI, Aquila ; INFN, LNS) ; Génolini, Y. (Annecy, LAPTH) ; Ghosh, P. (NASA, Goddard) et al.
Cosmic-ray physics in the GeV-to-TeV energy range has entered a precision era thanks to recent data from space-based experiments. [...]
arXiv:2503.16173. - 103.
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