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2025-07-17
16:47
Precision measurement of the ${\it{\Xi}}_b^0$ baryon lifetime
A sample of $pp$ collision data, corresponding to an integrated luminosity of 5.4 fb$^{-1}$ and collected by the LHCb experiment during LHC Run 2, is used to measure the ratio of the lifetime of the ${\it{\Xi}}_b^0$ baryon to that of the ${\it{\Lambda}}_b^0$ baryon, $r_{\tau}\equiv\tau_{{\it{\Xi}}_b^0}/\tau_{{\it{\Lambda}}_b^0}$. [...]
CERN-EP-2025-139 ; arXiv:2507.12402 ; LHCB-PAPER-2025-023. - 2025
Fulltext - Related data file(s) - Full text

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2025-07-17
15:27
Search for lepton flavor violation at ATLAS and CMS / Basile, Chiara (INFN, Rome ; Rome U.) /ATLAS and CMS Collaborations
This contribution describes a selection of recent Charged Lepton Flavor Violation searches performed by the ATLAS and CMS collaborations at the Large Hadron Collider (LHC), covering a wide range of sectors including rare tau decays, top-quark interactions, Higgs boson decays, and heavy resonance searches. All the results in this document exploit the full proton-proton collision dataset collected during the LHC Run2 corresponding to and integrated luminosity of approximately 138~fb$^{-1}$..
CMS-CR-2025-096.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : Workshop Italiano sulla Fisica ad Alta Intensita, Bologna, 11 - 15 Nov

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2025-07-17
08:23
Search for the Higgs boson decay to a $Z$ boson and a photon in $pp$ collisions at $\sqrt{s}=13$ TeV and $13.6$ TeV with the ATLAS detector
A search for the Higgs boson decay to a $Z$ boson and a photon in the $\ell\ell\gamma$ ($\ell = e, \mu$) final state is performed using $pp$ collisions at $\sqrt{s}=13.6$ TeV recorded with the ATLAS detector at the Large Hadron Collider during 2022-2024, corresponding to an integrated luminosity of 165 fb$^{-1}$. [...]
CERN-EP-2025-155. - 2025
Fulltext - Previous draft version

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2025-07-17
04:38
Detectability and Parameter Estimation for Einstein Telescope Configurations with GWJulia / Begnoni, Andrea (Padua U. ; INFN, Padua) ; Anselmi, Stefano (Padua U. ; INFN, Padua ; LUTH, Meudon) ; Pieroni, Mauro (Madrid, Inst. Estructura Materia ; CERN) ; Renzi, Alessandro (Padua U. ; INFN, Padua) ; Ricciardone, Angelo (Pisa U. ; INFN, Pisa)
Future gravitational-wave (GW) detectors are expected to detect tens of thousands of compact binary coalescences (CBC) per year, depending also on the final detectors layout [...]
arXiv:2506.21530. - 24.
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2025-07-17
04:36
Testing T2K's Bayesian constraints with priors in alternate parameterisations / T2K Collaboration
Bayesian analysis results require a choice of prior distribution. [...]
arXiv:2507.02101. - 18.
Fulltext

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2025-07-17
04:17
Direct proton transfer on $^{46}$Ar supports the presence of a charge density bubble linked to a novel nuclear structure below $^{48}$Ca / Brugnara, Daniele (INFN, Padua ; INFN, Legnaro) ; Gottardo, Andrea (INFN, Legnaro) ; Assiè, Marlene (IJCLab, Orsay) ; Barbieri, Carlo (Milan U. ; INFN, Milan) ; Mengoni, Daniele (INFN, Padua) ; Beaumel, Didier (IJCLab, Orsay) ; Brolli, Stefano (Milan U. ; INFN, Milan) ; Bottoni, Simone (Milan U. ; INFN, Milan) ; Clement, Emmanuel (GANIL) ; Colò, Gianluca (Milan U. ; INFN, Milan) et al.
The $^{46}$Ar($^3$He,d)$^{47}$K reaction was performed in inverse kinematics using a radioactive $^{46}$Ar beam produced by the SPIRAL1 facility at GANIL and a cryogenic $^{3}$He target. [...]
arXiv:2506.23228. - 16.
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2025-07-17
04:10
Towards NNLO QCD predictions for off-shell top-quark pair production and decays / Buonocore, Luca (CERN) ; Grazzini, Massimiliano (Zurich U.) ; Kallweit, Stefan (Zurich U.) ; Lindert, Jonas M. (Sussex U.) ; Savoini, Chiara (Munich, Tech. U.)
We consider QCD radiative corrections to $W^+W^-b {\bar b}$ production with leptonic decays and massive bottom quarks at the LHC. [...]
ZU-TH-47/25 ; TUM-HEP-1565/25 ; CERN-TH-2025-130 ; arXiv:2507.11410. - 70.
Fulltext

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2025-07-16
04:04
Ultra-Slow-Roll Inflation on the Lattice II: Nonperturbative Curvature Perturbation / Caravano, Angelo (Paris, Inst. Astrophys.) ; Franciolini, Gabriele (CERN) ; Renaux-Petel, Sébastien (Paris, Inst. Astrophys.)
Building on the recent lattice simulations of ultra-slow-roll (USR) dynamics presented in arXiv:2410.23942, we investigate the role of the nonlinear relation between the inflaton field configuration and the curvature perturbation $ζ$, the key observable after inflation. [...]
arXiv:2506.11795. - 15.
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2025-07-15
10:24
First observation of the $\mathit{\Lambda}_b^{0}\!\rightarrow\mathit{\Lambda}_{c}^{+}D_{s}^{-}K^{+}K^{-}$ decay and search for pentaquarks in the $\mathit{\Lambda}_{c}^{+}D_{s}^{-}$ system / LHCb Collaboration
The $\mathit{\Lambda}_b^{0}\!\rightarrow\mathit{\Lambda}_{c}^{+}D_{s}^{-}K^{+}K^{-}$ decay is observed for the first time using the data sample from proton-proton collisions recorded at a center-of-mass energy of $13\,\text{TeV}$ with the LHCb detector, corresponding to an integrated luminosity of $6\,\text{fb}^{-1}$. [...]
arXiv:2507.10713 ; LHCb-PAPER-2025-022 ; CERN-EP-2025-138 ; LHCB-PAPER-2025-022. - 2025 - 24 p, 24.
Fulltext - Related data file(s) - Fulltext

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2025-07-15
04:56
Science of the LISA mission: A Summary for the European Strategy for Particle Physics / Caprini, Chiara (CERN ; Geneva U., Dept. Theor. Phys.) ; Heffernan, Anna (U. Iles Balears, Palma) ; Brito, Richard (Lisbon, CENTRA) ; Franciolini, Gabriele (CERN) ; Nardini, Germano (Stavanger U.) ; Tamanini, Nicola (L2IT, Toulouse) ; Steer, Danièle (LPENS, Paris)
The LISA mission is an international collaboration between ESA, its member states, and NASA, for the detection of gravitational waves from space. [...]
arXiv:2507.05130. - 18.
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