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2025-06-27
17:01
Updated measurement of $CP$ violation and polarisation in $B^0_s \rightarrow J/\psi \overline{K}{}^{*}\kern-1pt(892)^{0}$ decays
A time-integrated angular analysis of the decay $B^0_s \rightarrow J/\psi \overline{K}{}^{*}\kern-1pt(892)^{0}$, with $J/\psi \rightarrow \mu^{+} \mu^{-}$ and $\overline{K}{}^{*}\kern-1pt(892)^{0} \rightarrow K^{-} \pi^{+}$, is presented. [...]
CERN-EP-2025-131 ; LHCB-PAPER-2025-020. - 2025
Fulltext - Previous draft version - Related data file(s)

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2025-06-27
10:23
Search for anti-quark nuggets via their interaction with the LHC beam / Zioutas, K (Patras U.) ; Zhitnitsky, A (British Columbia U.) ; Zamantzas, C (CERN) ; Semertzidis, Y K (IBS, Daejeon) ; Ruimi, O M (Hebrew U. ; Helmholtz Inst., Mainz ; Mainz U.) ; Ozbozduman, K (Bogazici U.) ; Maroudas, M (Hamburg U.) ; Kryemadhi, A (Unlisted, US, PA) ; Karuza, M (Rijeka U.) ; Horns, D (Hamburg U.) et al.
Anti-quark nuggets (AQNs) have been suggested to solve the dark matter (DM) and the missing antimatter problem in the universe and have been proposed as an explanation of various observations. [...]
arXiv:2403.05608. - 2024 - 4.
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2025-06-27
05:57
The LHCb Sprucing and Analysis Productions / Abdelmotteleb, Ahmed (Warwick U.) ; Bertolin, Alessandro (INFN, Padua) ; Burr, Chris (CERN) ; Couturier, Ben (CERN) ; Eckstein, Ellinor (Bonn U., HISKP) ; Fazzini, Davide (INFN, Milan Bicocca) ; Grieser, Nathan (Cincinnati U.) ; Haen, Christophe (CERN) ; O'Neil, Ryunosuke (CERN) ; Rodrigues, Eduardo (Liverpool U.) et al.
The LHCb detector underwent a comprehensive upgrade in preparation for the third data-taking run of the Large Hadron Collider (LHC), known as LHCb Upgrade I. [...]
arXiv:2506.20309. - 20.
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2025-06-26
12:27
Camera calibration of the first CTAO Larged-Size Telescope / Cassol, Franca (Centre National de la Recherche Scientifique (FR)) /RE23/CTA-LST Collaboration
The Cherenkov Telescope Array Observatory (CTAO), a forthcoming very-high- energy gamma-ray facility, will use the Imaging Atmospheric Cherenkov Technique (IACT) to achieve unprecedented resolution from 20 GeV to 300 TeV. Large-Sized Telescopes (LSTs) are crucial for the low-energy range [...]
CERN-RE23-2025-004.- Geneva : CERN, 2025

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2025-06-26
04:26
Leptogenesis in automatic Nelson-Barr models / Murgui, Clara (CERN) ; Patrone, Samuel (Caltech)
In this study, we numerically show that automatic Nelson-Barr models with new chiral fermions can simultaneously solve the strong CP problem and generate the observed baryon asymmetry via high-scale leptogenesis. [...]
CALT-TH/2025-020 ; CERN-TH-2025-118 ; arXiv:2506.18963. - 40.
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2025-06-26
04:25
Efficient many-jet event generation with Flow Matching / Bothmann, E. (CERN ; Gottingen U.) ; Janßen, T. (Gottingen U.) ; Knobbe, M. (Fermilab) ; Schmitzer, B. (Gottingen U.) ; Sinz, F. (Gottingen U.)
We apply for the first time the Flow Matching method to the problem of phase-space sampling for event generation in high-energy collider physics. [...]
FERMILAB-PUB-25-0304-T ; MCNET-25-15 ; arXiv:2506.18987. - 31.
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2025-06-25
04:24
Stable perturbative predictions for isolated photon production with a jet pair at large $m_{j_1 j_2}$ / Andersen, Jeppe R. (Durham U., IPPP ; CERN) ; Maier, Andreas (Barcelona, IFAE ; Barcelona, Autonoma U.) ; Rosca, Malina (Durham U., IPPP) ; Ruisi, Giacomo (DESY, Zeuthen)
We present the first calculation of the high-energy corrections to the process of isolated photon production in association with two jets. [...]
CERN-TH-2025-120 ; IPPP/25/35 ; arXiv:2506.17438. - 24.
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2025-06-24
05:03
$^{50}$Cr and $^{53}$Cr neutron capture cross sections measurement at the n_TOF facility at CERN / Pérez-Maroto, P. ; Guerrero, C. ; Casanovas, A. ; Fernández, B. ; Mendoza, E. ; Alcayne, V. ; Lerendegui-Marco, J. ; Domingo-Pardo, C. ; Quesada, J.M. ; Capote, R.
$^{50,53}$Cr are very relevant in criticality safety benchmarks related to nuclear reactors. [...]
arXiv:2506.17161. -
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2025-06-23
16:46
Probing the Higgs boson CP properties in vector-boson fusion production in the $H\rightarrow\tau^+\tau^-$ channel with the ATLAS detector / ATLAS Collaboration
The CP properties of the Higgs boson are studied in the vector-boson fusion production mode [...]
arXiv:2506.19395 ; CERN-EP-2025-127. - 2025 - 52.
Fulltext - Previous draft version - Fulltext

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2025-06-23
11:02
Heavy Ion Ultra Peripheral Collisions at CMS and ATLAS / Veres, Gabor (Eotvos U.) /ATLAS and CMS Collaborations
Recent results from the ATLAS and CMS Collaborations will be summarized, related to ultraperipheral heavy ion collisions. Those include studies of nuclear parton distributions using various final states like coherent and incoherent J/Psi, coherent Upsilon and phi, open charm, and photonuclear jets. [...]
CMS-CR-2025-126.- Geneva : CERN, 2025 - 5 p. Fulltext: PDF;
In : 59th Rencontres de Moriond on QCD and High Energy Interactions, La Thuile, Italia, 30 Mar - 6 Apr 2025

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