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2025-11-06
04:15
The Price of a Large Electron Yukawa Modification / Allwicher, Lukas (DESY) ; McCullough, Matthew (CERN) ; Renner, Sophie (Glasgow U.) ; Rocha, Duncan (CERN ; Fermilab ; U. Chicago (main)) ; Smith, Benjamin (Glasgow U.)
The theoretical implications of an electron Yukawa modification are considered in the context of a possible Higgs pole run at FCC-ee, aimed at bounding this coupling. [...]
CERN-TH-2025-201 ; DESY-25-142 ; arXiv:2511.02642. - 42.
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2025-11-06
04:13
Near-extremal membranes in M-theory / Buchel, Alex (Western Ontario U.) ; Monten, Ruben (CERN)
We consider near-extremal membranes embedded in M-theory, consistently truncated to gauged $\mathcal{N} = 2$ supergravity in four dimensions on the coset space $M^{1,1,0}$. [...]
CERN-TH-2025-224 ; arXiv:2511.01974. - 38.
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2025-11-06
04:13
Search for $K_{\mathrm{S(L)}}^{0} \rightarrow \pi^{+} \pi^{-} \mu^{+} \mu^{-}$ decays at LHCb / LHCb Collaboration
A search for $K_{\mathrm{S(L)}}^{0} \rightarrow π^{+}π^{-}μ^{+}μ^{-}$ decays is performed using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of $13\,\mathrm{TeV}$, corresponding to an integrated luminosity of $5.4\,\mathrm{fb^{-1}}$. [...]
arXiv:2511.02619 ; CERN-EP-2025-227 ; LHCb-PAPER-2025-045. - 21.
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2025-11-06
04:13
Hadronic scattering in (1+1)D SU(2) lattice gauge theory from tensor networks / Barata, João (CERN) ; Hormaza, Juan (Colombia, U. Natl.) ; Kang, Zhong-Bo (UCLA) ; Qian, Wenyang (Santiago de Compostela U., IGFAE)
We present a first real-time study of hadronic scattering in a (1+1)-dimensional SU(2) lattice gauge theory with fundamental fermions using tensor-network techniques. [...]
CERN-TH-2025-214 ; arXiv:2511.00154. - 17.
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2025-11-05
21:45
Characterizing the initial state and dynamical evolution in XeXe and PbPb collisions using multiparticle cumulants
For the first time, correlations among mixed-order moments of two or three flow harmonics $-$($ v_{n}^{k},v_{m}^{l} $) and ($ v_{n}^{k},v_{m}^{l}, v_{p}^{q} $), with $ k $, $ l $, and $ q $ denoting the respective orders$-$are measured in xenon-xenon (XeXe) collisions and compared with lead-lead (PbPb) results, providing a novel probe of collective behavior in heavy ion collisions. [...]
arXiv:2510.26766 ; CMS-HIN-24-004 ; CERN-EP-2025-210 ; CMS-HIN-24-004-003. - 2025
Additional information for the analysis - CMS AuthorList - Fulltext - CMS HEPData

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2025-11-05
04:14
Nucleosynthesis and CMB bounds on photophilic ALPs: a fresh look / Escudero, Miguel (CERN) ; Garcia-Perez, Clara (CERN ; Zaragoza U.) ; Ovchynnikov, Maksym (CERN)
We provide a fresh look at the cosmological constraints on axion-like particles (ALPs) that couple predominantly to photons, focusing on lifetimes $τ_{a} \lesssim 10^{4}\, {\rm s}$ and masses $m_a\lesssim 10\,{\rm GeV}$. [...]
CERN-TH-2025-222 ; arXiv:2511.00157. - 8.
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2025-11-05
04:11
opbasis - a Python package to derive minimal operator bases / Husung, Nikolai (CERN ; Madrid, IFT ; Madrid, Autonoma U.)
Finding a complete and yet minimal on-shell basis of operators of a given mass-dimension that are compatible with a specific set of transformation properties is the first step in any Effective Field Theory description. [...]
CERN-TH-2025-223 ; IFT-UAM/CSIC-25-138 ; arXiv:2511.00165. - 23.
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2025-11-05
04:02
Precision lattice calculation of the hadronic contribution to the running of the electroweak gauge couplings / Conigli, Alessandro (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; Djukanovic, Dalibor (Helmholtz Inst., Mainz ; Darmstadt, GSI) ; von Hippel, Georg (U. Mainz, PRISMA) ; Kuberski, Simon (CERN) ; Meyer, Harvey B. (Helmholtz Inst., Mainz ; U. Mainz, PRISMA ; CERN) ; Miura, Kohtaroh (KEK, Tsukuba) ; Ottnad, Konstantin (U. Mainz, PRISMA) ; Risch, Andreas (Wuppertal U.) ; Wittig, Hartmut (Helmholtz Inst., Mainz ; Darmstadt, GSI ; U. Mainz, PRISMA)
We present an update of our lattice QCD determination of the hadronic contribution to the running of the electromagnetic coupling, $Δα_{\mathrm{had}}^{(5)}(-Q^2)$, and of the electroweak mixing angle in the space-like momentum region up to $Q^2=12\ \mathrm{GeV}^2$. [...]
CERN-TH-2025-216 ; MITP-25-069 ; KEK-TH-2771 ; arXiv:2511.01623. - 59.
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2025-11-04
06:02
A Generalisable Generative Model for Multi-Detector Calorimeter Simulation / Raikwar, Piyush (CERN) ; Zaborowska, Anna (CERN) ; McKeown, Peter (CERN) ; Cardoso, Renato (CERN) ; Piorczynski, Mikolaj (Warsaw U. of Tech. (main)) ; Yeo, Kyongmin (IBM Watson Res. Ctr.)
Collider experiments, such as those at the Large Hadron Collider, use the Geant4 toolkit to simulate particle-detector interactions with high accuracy. [...]
arXiv:2509.07700. - 2025 - 31.
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2025-11-04
06:01
Automated computation of spin-density matrices and quantum observables for collider physics / Durupt, Valentin (Louvain U., CP3) ; Maltoni, Fabio (Louvain U., CP3 ; Bologna U. ; INFN, Bologna ; CERN) ; Mattelaer, Olivier (Louvain U., CP3)
We present a fully automated framework to compute production spin-density matrices for generic collider processes at tree level within \textsc{MadGraph5\_aMC@NLO}. [...]
IRMP-CP3-25-34 ; arXiv:2510.17730. - 2025 - 71.
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