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2025-06-29
15:46
Search for the nonresonant and resonant production of a Higgs boson in association with an additional scalar boson in the $ \gamma\gamma\tau\tau $ final state in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
The results of a search for the production of two scalar bosons in final states with two photons and two tau leptons are presented. [...]
CERN-EP-2025-116 ; CMS-HIG-22-012-003. - 2025
Additional information for the analysis - CMS AuthorList - Fulltext

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2025-06-28
05:01
Probing Neutral Triple Gauge Couplings via $ZZ$ Production at $e^+e^-$ Colliders / Ellis, John (Shanghai Jiao Tong U. ; King's Coll. London ; CERN) ; He, Hong-Jian (Tsung-Dao Lee Inst., Shanghai ; Shanghai Jiao Tong U. ; Tsinghua U., Beijing ; Peking U., CHEP) ; Xiao, Rui-Qing (Peking U.) ; Zeng, Shi-Ping (Tsung-Dao Lee Inst., Shanghai ; Shanghai Jiao Tong U.)
Neutral triple gauge couplings (nTGCs) first arise from the dimension-8 operators of the Standard Model Effective Field Theory (SMEFT), rather than the dimension-4 SM Lagrangian and dimension-6 SMEFT operators, opening up a unique window for probing new physics at the dimension-8 level. [...]
KCL-PH-TH/2025-28 ; CERN-TH-2025-122 ; arXiv:2506.21433. - 32.
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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 ; arXiv:2506.22090 ; LHCB-PAPER-2025-020. - 2025
Fulltext - 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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