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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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2026-01-13
15:40
Evidence for the rare decay $B^{+} \to \bar \Lambda p \mu^{+} \mu^{-}$
A search for the rare decay $B^{+} \to \bar \Lambda p \mu^{+} \mu^{- }$ is performed using proton-proton collision data recorded by the LHCb experiment at a center-of-mass energy of $\sqrt{s}= 13$ TeV, corresponding to an integrated luminosity of 5.4 fb$^-1$. [...]
CERN-EP-2025-277 ; arXiv:2601.06878 ; LHCB-PAPER-2025-051. - 2026
Fulltext - Related data file(s) - Full text

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2026-01-13
04:24
Measurement of spin correlation and entanglement in ATLAS and CMS / Jolly, Fiona Ann (DESY)
The Large Hadron Collider has delivered exceptionally large proton-proton collision datasets at centre-of-mass energies of up to 13.6 TeV. [...]
arXiv:2601.04649. - 7.
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2026-01-12
14:08
Probes of flavor symmetry and violation with top quarks in ATLAS and CMS / Strautnieks, Normunds Ralfs (LATVIA-UNIV) /ATLAS and CMS Collaborations
Measurements of lepton flavor universality (LFU) and searches for charged lepton flavor violation (cLFV) are one of the most straightforward ways of searching for Beyond Standard Model (BSM) physics. The numerous production of top quark pairs at the LHC allows for high precision measurements of LFU ratios and searches for cLFV signatures. [...]
CMS-CR-2025-296.- Geneva : CERN, 2025 - 9 p. Fulltext: PDF;
In : 18th International Workshop on Top Quark Physics (TOP2025), Seoul, South Korea, 21 - 26 Sep 2025

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2026-01-12
14:08
Development and Implementation of Non-Zero Suppression System for HGCAL / Akgul, Berke (Yildiz Tech. U.) ; Fedar, Yunus Emre (Yildiz Tech. U.) ; Yuksel, Osman (Yildiz Tech. U.) ; Yuksel, Ferhat (Yildiz Tech. U.) ; Erkmen, Burcu (Yildiz Tech. U.) ; Sakarya, Ufuk (Yildiz Tech. U.) ; Polat, N. T ; David Tinoco Mendes, Andre (CERN) ; Dauncey, Paul Dominic (Imperial Coll., London) ; Shukla, Raghunandan Atul (Imperial Coll., London) /CMS Collaboration
In preparation for operations at the HL-LHC, the CMS Collaboration is upgrading its endcap calorimeters with a high granularity calorimeter (HGCAL). The HGCAL back-end electronics includes two Non-Zero Suppression (NZS) boards, which dynamically disable zero-suppression in designated regions of interest. [...]
CMS-CR-2025-257.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : Topical Workshop on Electronics for Particle Physics 2025, Rethymno, Crete, Greece, 6 - 10 Oct 2025

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2026-01-10
04:17
Measurement of the Higgs boson total decay width using the H $\to$ WW $\to$ e$νμν$ decay channel in proton-proton collisions at $\sqrt{s}$ = 13 TeV / CMS Collaboration
The Higgs boson (H) decay width is determined from the ratio of off- and on-shell production of H $\to$ WW $\to$ e$νμν$ using proton-proton collision data corresponding to an integrated luminosity of 138 fb$^{-1}$ collected at $\sqrt{s}$ = 13 TeV by the CMS experiment at the LHC. [...]
arXiv:2601.05168 ; CMS-HIG-24-011 ; CERN-EP-2025-279. - 41 p, 41.
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2026-01-09
10:52
Search for long-lived particles using displaced vertices of oppositely charged leptons in 140 fb$^{-1}$ of pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
A search is presented for long-lived particles decaying into an oppositely charged lepton pair, $\mu^{+}\mu^{-}$, $e^{+}e^{-}$, or $e^{\pm}\mu^{\mp}$, that form a vertex within the inner tracking system of the ATLAS detector at the Large Hadron Collider, displaced from the primary proton-proton interaction region. [...]
CERN-EP-2025-293. - 2026
Fulltext - Previous draft version

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2026-01-09
06:42
A wide-field X-ray search for the Geminga pulsar halo with SRG/ART-XC / Krivonos, Roman (Moscow, Space Res. Inst.) ; Manconi, Silvia (Annecy, LAPTH ; Unlisted, CH) ; Arefiev, Vadim (Moscow, Space Res. Inst.) ; Bykov, Andrei (Ioffe Phys. Tech. Inst.) ; Donato, Fiorenza (U. Turin (main) ; INFN, Turin ; CERN) ; Filippova, Ekaterina (Moscow, Space Res. Inst.) ; Lutovinov, Alexander (Moscow, Space Res. Inst.) ; Di Mauro, Mattia (INFN, Turin) ; Mori, Kaya (Columbia U. (main)) ; Tkachenko, Alexey (Moscow, Space Res. Inst.) et al.
Searches for the putative large-scale X-ray halo around the Geminga pulsar have been extensively performed using various narrow field-of-view X-ray telescopes. [...]
arXiv:2512.13846. - 2025 - 7.
Fulltext

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2026-01-09
06:42
Production of charmed particles in proton-proton and light nucleus-nucleus interactions in Geant4 FTF model / Galoyan, A (Dubna, JINR) ; Ribon, A (CERN) ; Uzhinsky, V (Dubna, JINR)
The total yield of neutral D-mesons (4$π$) in central Xe+La interactions at 150 GeV per nucleon has been calculated within the Geant4 FTF model. [...]
arXiv:2512.21184. - 2025 - 9.
Fulltext

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2026-01-09
04:06
Constraining Dark Acoustic Oscillations with the High-Redshift UV Luminosity Function / Barron, Jared (Stony Brook U.) ; Curtin, David (U. Toronto (main) ; CERN) ; Liu, Hongwan (Boston U. (main)) ; Munoz, Julian (U. Texas, Austin (main)) ; Roy, Sandip (UC, San Diego (main))
Dark acoustic oscillations (DAOs) in the matter power spectrum can arise in many different dark sector models, and can imprint on a variety of cosmological observables. [...]
arXiv:2512.01998. - 33.
Fulltext

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2026-01-09
04:06
Pixel response characterization of the ARCADIA Fully Depleted MAPS / Pantouvakis, C. (U. Padua (main) ; INFN, Padua) ; Rignanese, M. (U. Padua (main) ; INFN, Padua) ; Zenger, T. (Fermilab) ; Ciarlantini, S. (INFN, Padua ; U. Padua (main)) ; Zingaretti, A. (U. Padua (main) ; INFN, Padua) ; Azzi, P. (INFN, Padua) ; Bonini, C. (INFN, Padua ; U. Padua (main)) ; Chiappara, D. (U. Padua (main) ; INFN, Padua ; CERN) ; Mattiazzo, S. (U. Padua (main) ; INFN, Padua) ; Pantano, D. (U. Padua (main) ; INFN, Padua) et al.
Monolithic Active Pixel Sensors (MAPS) achieved widespread use in several scientific applications, thanks to their properties, such as low material budget and high granularity. [...]
FERMILAB-PUB-25-0943-ETD-PPD ; arXiv:2512.15289. - 16.
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