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2025-12-12
14:10
Measurement of the top-quark production cross-section and charge asymmetry at LHCb
The first measurements of the top- and antitop-quark differential production cross-sections and the top-quark charge asymmetry in the forward region are presented, using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.4 $fb^{-1}$. [...]
CERN-EP-2025-274 ; LHCB-PAPER-2025-057. - 2025
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2025-12-12
04:05
Performance of the High-Angle Time Projection Chambers in the Upgraded T2K Off-Axis Near Detector / Aivazelis, K. (IRFU, Saclay) ; Attié, D. (IRFU, Saclay) ; Billoir, P. (Paris U., VI-VII) ; Blanchet, A. (Paris U., VI-VII) ; Bortolato, G. (INFN, Padua ; Padua U.) ; Bolognesi, S. (IRFU, Saclay) ; Boullon, R. (IRFU, Saclay) ; Calabria, N.F. (Bari Polytechnic ; INFN, Bari) ; Calvet, D. (IRFU, Saclay) ; Casado, M.P. (Barcelona, IFAE) et al.
The off-axis magnetic near detector of the T2K experiment has undergone a significant upgrade, including the construction and installation of two new Time Projection Chambers featuring innovative resistive Micromegas technology and a field cage composed of thin composite walls. [...]
arXiv:2511.18650. - 49.
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2025-12-12
04:05
Beam-test evaluation of pre-production Low Gain Avalanche Detectors for the ATLAS High Granularity Timing Detector / Aboulhorma, A. (Rabat U.) ; Ait Tamlihat, M. (Rabat U.) ; Alfanda, H.M. (Shanghai Jiao Tong U. ; Shanghai Jiaotong U. ; KLPAC, Shanghai) ; Atanova, O. (Unlisted) ; Atanov, N. (Unlisted) ; Azzouzi, I. (Mohammed V U., Agdal) ; da Costa, J. Barreiro Guimarães (Beijing, Inst. High Energy Phys.) ; Beau, T. (LPNHE, Paris) ; Benchekroun, D. (Hassan U., II, Ain Chock) ; Bendebba, F. (Hassan U., II, Ain Chock) et al.
The High Granularity Timing Detector (HGTD) will be installed in the ATLAS experiment as part of the Phase-II upgrade for the High Luminosity-Large Hadron Collider (HL-LHC). [...]
arXiv:2512.01855. - 24.
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2025-12-12
04:05
CMS Results at the t$\bar{\text{t}}$ threshold / Bach, rn
Recent results of CMS at the top-antitop quark pair production threshold in the dileptonic and semileptonic decay channels are presented. [...]
arXiv:2512.09501 ; CMS CR-2025/162. - 7.
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2025-12-12
04:01
Neutrinos, B-L Symmetry and the Dark Dimension / Montero, Miguel (Madrid, IFT) ; Vafa, Cumrun (Harvard U., Phys. Dept.) ; Valenzuela, Irene (Madrid, IFT ; CERN)
We consider realizations of a gauged B-L symmetry in the context of the Dark Dimension scenario, where the SM lives on a codimension one brane in 5d spacetime. [...]
IFT-25-158 ; CERN-TH-2025-255 ; arXiv:2512.09052. - 16.
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2025-12-11
13:40
Precision measurement of CP violation and branching fractions in $B^{\pm} \to K^0_{\mathrm{S}} h^{\pm}$ $(h = \pi, K)$ decays and search for the rare decay $B_c^{\pm} \to K ^0_{\mathrm{S}} K^{\pm}$ / LHCb Collaboration
An analysis of the decays $B^{\pm} \to K^0_{\mathrm{S}} \pi^{\pm}$ and $B^{\pm} \to K^0_{\mathrm{S}} K^{\pm}$ is performed using proton-proton collision data collected by the LHCb experiment at a center-of-mass energy of $13 TeV$, corresponding to an integrated luminosity of 5.4fb$^{-1}$. [...]
CERN-EP-2025-261 ; LHCb-PAPER-2025-049 ; arXiv:2512.09288 ; LHCB-PAPER-2025-049. - 2025
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2025-12-11
05:33
Inflationary Particle Production and the Swampland / Lüst, Dieter (Garching, Max Planck Inst. ; Munich U., ASC) ; Masias, Joaquin (Garching, Max Planck Inst.) ; Pieroni, Mauro (CERN ; Madrid, Inst. Estructura Materia) ; Scalisi, Marco (Garching, Max Planck Inst. ; Catania U. ; INFN, Catania)
We investigate the impact of particle production during inflation in scenarios where an infinite tower of states features a mass scale that decreases exponentially along the inflationary trajectory. [...]
MPP-2025-202 ; LMU-ASC 25/25 ; arXiv:2512.07930. - 38.
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2025-12-11
04:48
Two-loop renormalization of general bosonic effective field theories / Guedes, Guilherme (CERN) ; Roosmale Nepveu, Jasper (Taiwan, Natl. Taiwan U. ; Unlisted, TW)
The renormalization of higher-dimensional operators in quantum field theory is essential for phenomenological analyses in particle physics, and plays a significant role in the study of critical phenomena. [...]
CERN-TH-2025-250 ; arXiv:2512.08827. - 24.
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2025-12-11
04:29
Measurement of the differential $t$-channel production cross-section of single top quarks and top antiquarks at $\sqrt{s} = $13 TeV with the ATLAS detector / Stratmann, Maren (Wuppertal U.)
Differential production cross-sections of single top quarks and top antiquarks are measured in proton-proton collisions at a centre-of-mass energy $\sqrt{s} = $13 TeV. [...]
arXiv:2512.08573. - 7.
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2025-12-10
17:12
Wavefront aberration detection of a Structured Laser Beam using artificial intelligence and its application in alignment / Dusek, Martin ; Gayde, Jean-Christophe (CERN) ; Sulc, Miroslav (Technical University of Liberec (CZ))
The Structured Laser Beam (SLB) is a pseudo-non-diffracting laser beam that shares many characteristics with a Bessel beam [...]
CERN-BE-2025-003. - 2024 - 11.
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