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The Preprints collection aims to cover as far as possible all the grey literature in particle physics and its related technologies. The collection contains something like 400,000 documents, out of which about 50% can be accessed electronically. The documents originate from a variety of institutes all over the world. The collection, currently available, starts in 1979 and it has a full coverage of the arXiv.org e-Print archive since its beginning in 1991.
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Preprints

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2025-12-13
04:37
Modeling Light Signals Using Data from the First Pulsed Neutron Source Program at the DUNE Vertical Drift ColdBox Test Facility at CERN Neutrino Platform / Paudel, A. (Fermilab) ; Shi, W. (SUNY, Stony Brook) ; Sala, P. (Fermilab) ; Cavanna, F. (Fermilab) ; Johnson, W. (South Dakota Sch. Mines Tech.) ; Wang, J. (South Dakota Sch. Mines Tech.) ; Ketchum, W. (Fermilab) ; Resnati, F. (CERN) ; Heindel, A. (SUNY, Stony Brook) ; Ashkenazi, A. (Tel Aviv U.) et al.
In this paper, we present a first quantitative test of detected light signals produced in a pulsed neutron source run in a small vertical drift LArTPC at the CERN neutrino platform ColdBox test facility. [...]
arXiv:2512.10790 ; FERMILAB-PUB-25-0856-LBNF. - 16.
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2025-12-13
04:34
Hiding a Light Vector Boson from Terrestrial Experiments: A Chargephobic Dark Photon / Esseili, Haidar (Oregon U.) ; Kribs, Graham D. (Oregon U. ; CERN)
We calculate the terrestrial, astrophysical and cosmological constraints on a light vector boson that couples to an arbitrary combination of the electromagnetic and $B-L$ currents of the Standard Model. [...]
CERN-TH-2025-242 ; arXiv:2512.10916. - 54.
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2025-12-13
04:12
Conformal collider bootstrap in ${\mathcal N}=4$ SYM / Dempsey, Ross (MIT) ; Karlsson, Robin (Oxford U., Inst. Math.) ; Pufu, Silviu S. (Princeton U. (main)) ; Zahraee, Zahra (Perimeter Inst. Theor. Phys.) ; Zhiboedov, Alexander (CERN)
We use a combination of perturbation theory, holography, supersymmetric localization, integrability, and numerical conformal bootstrap methods to constrain the energy-energy correlator in $\text{SU}(N_c)$${\mathcal N}=4$ SYM at finite coupling. [...]
CERN-TH-2025-212 ; MIT-CTP/5979 ; PUPT-2659 ; arXiv:2512.10796. - 97.
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2025-12-13
04:04
Nonlocal form factor of chromomagnetic penguin in $B\to K\ell^+\ell^-$ from QCD light-cone sum rules / Hurth, T. (U. Mainz, PRISMA) ; Khodjamirian, A. (Siegen U.) ; Mahmoudi, F. (IP2I, Lyon ; CERN ; IUF, Paris) ; Mishra, D. (IP2I, Lyon) ; Monceaux, Y. (IP2I, Lyon) ; Neshatpour, S. (IP2I, Lyon)
The branching fraction of the $B \to K\ell^+\ell^-$ decay has been measured recently by the LHC experiments, showing a deviation from theory predictions based on the Standard Model (SM). [...]
CERN-TH-2025-253 ; MITP-25-076 ; SI-HEP-2025-28 ; P3H-25-109 ; arXiv:2512.10868. - 36.
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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, Jörn (DESY)
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$^{-1}$. [...]
arXiv:2512.09288 ; CERN-EP-2025-261 ; LHCb-PAPER-2025-049 ; LHCB-PAPER-2025-049. - 2025 - 23.
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