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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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2025-07-01
12:54
Search for squarks and gluinos in $pp$ collisions at $\sqrt{s} = 13$ TeV and $13.6$ TeV in events with $\tau$-leptons, jets and missing transverse momentum using the ATLAS detector
A search for R-parity-conserving supersymmetry in events with large missing transverse momentum, jets and at least one hadronically decaying $\tau$-lepton is presented. [...]
CERN-EP-2025-132. - 2025
Fulltext - Previous draft version

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2025-07-01
10:32
Extreme Blazars Observed with MAGIC: Second Catalog Release / Foffano, Luca (CERN) /RE23/CTA-LST Collaboration
Extremely high-peaked BL Lac objects - also named extreme blazars - are among the most energetic and persistent extragalactic accelerators in the Universe. These sources are defined by a synchrotron emission peaking above 1017 Hz (∼ 0.3 keV) in the X-ray band [...]
CERN-RE23-2025-005.- Geneva : CERN, 2025

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2025-07-01
04:40
S-wave flavor-singlet meson mixing in QCD with light and charm quarks / Urrea-Niño, Juan Andrés (Trinity Coll., Dublin ; Wuppertal U.) ; Finkenrath, Jacob (CERN) ; Höllwieser, Roman (Wuppertal U.) ; Knechtli, Francesco (Wuppertal U.) ; Korzec, Tomasz (Wuppertal U.) ; Peardon, Michael (Trinity Coll., Dublin)
We investigate the mixing between flavor-singlet light meson and charmonium operators in the S-wave channels, i.e. [...]
WUB/25-04 ; CERN-TH-2025-114 ; arXiv:2506.22132. - 14.
Fulltext

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2025-06-29
15:46
Search for the nonresonant and resonant production of a Higgs boson in association with an additional scalar boson in the $ \gamma\gamma\tau\tau $ final state in proton-proton collisions at $ \sqrt{s} = $ 13 TeV
The results of a search for the production of two scalar bosons in final states with two photons and two tau leptons are presented. [...]
CERN-EP-2025-116 ; CMS-HIG-22-012-003. - 2025
Additional information for the analysis - CMS AuthorList - Fulltext

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2025-06-28
05:01
Probing Neutral Triple Gauge Couplings via $ZZ$ Production at $e^+e^-$ Colliders / Ellis, John (Shanghai Jiao Tong U. ; King's Coll. London ; CERN) ; He, Hong-Jian (Tsung-Dao Lee Inst., Shanghai ; Shanghai Jiao Tong U. ; Tsinghua U., Beijing ; Peking U., CHEP) ; Xiao, Rui-Qing (Peking U.) ; Zeng, Shi-Ping (Tsung-Dao Lee Inst., Shanghai ; Shanghai Jiao Tong U.)
Neutral triple gauge couplings (nTGCs) first arise from the dimension-8 operators of the Standard Model Effective Field Theory (SMEFT), rather than the dimension-4 SM Lagrangian and dimension-6 SMEFT operators, opening up a unique window for probing new physics at the dimension-8 level. [...]
arXiv:2506.21433 ; KCL-PH-TH/2025-28 ; CERN-TH-2025-122. - 2024-11-07 - 32.
Fulltext

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2025-06-27
17:01
Updated measurement of $CP$ violation and polarisation in $B^0_s \rightarrow J/\psi \overline{K}{}^{*}\kern-1pt(892)^{0}$ decays / LHCb Collaboration
A time-integrated angular analysis of the decay $B^0_s \rightarrow J/\psi \overline{K}{}^{*}\kern-1pt(892)^{0}$, with $J/\psi \rightarrow \mu^{+} \mu^{-}$ and $\overline{K}{}^{*}\kern-1pt(892)^{0} \rightarrow K^{-} \pi^{+}$, is presented. [...]
arXiv:2506.22090 ; LHCb-PAPER-2025-020 ; CERN-EP-2025-131 ; LHCB-PAPER-2025-020. - 2025-06-17 - 35 p, 35.
Fulltext - Related data file(s) - Fulltext

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2025-06-27
10:23
Search for anti-quark nuggets via their interaction with the LHC beam / Zioutas, K (Patras U.) ; Zhitnitsky, A (British Columbia U.) ; Zamantzas, C (CERN) ; Semertzidis, Y K (IBS, Daejeon) ; Ruimi, O M (Hebrew U. ; Helmholtz Inst., Mainz ; Mainz U.) ; Ozbozduman, K (Bogazici U.) ; Maroudas, M (Hamburg U.) ; Kryemadhi, A (Unlisted, US, PA) ; Karuza, M (Rijeka U.) ; Horns, D (Hamburg U.) et al.
Anti-quark nuggets (AQNs) have been suggested to solve the dark matter (DM) and the missing antimatter problem in the universe and have been proposed as an explanation of various observations. [...]
arXiv:2403.05608. - 2024 - 4.
Fulltext

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2025-06-27
05:57
The LHCb Sprucing and Analysis Productions / Abdelmotteleb, Ahmed (Warwick U.) ; Bertolin, Alessandro (INFN, Padua) ; Burr, Chris (CERN) ; Couturier, Ben (CERN) ; Eckstein, Ellinor (Bonn U., HISKP) ; Fazzini, Davide (INFN, Milan Bicocca) ; Grieser, Nathan (Cincinnati U.) ; Haen, Christophe (CERN) ; O'Neil, Ryunosuke (CERN) ; Rodrigues, Eduardo (Liverpool U.) et al.
The LHCb detector underwent a comprehensive upgrade in preparation for the third data-taking run of the Large Hadron Collider (LHC), known as LHCb Upgrade I. [...]
arXiv:2506.20309. - 20.
Fulltext

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2025-06-26
12:27
Camera calibration of the first CTAO Larged-Size Telescope / Cassol, Franca (Centre National de la Recherche Scientifique (FR)) /RE23/CTA-LST Collaboration
The Cherenkov Telescope Array Observatory (CTAO), a forthcoming very-high- energy gamma-ray facility, will use the Imaging Atmospheric Cherenkov Technique (IACT) to achieve unprecedented resolution from 20 GeV to 300 TeV. Large-Sized Telescopes (LSTs) are crucial for the low-energy range [...]
CERN-RE23-2025-004.- Geneva : CERN, 2025

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2025-06-26
04:26
Leptogenesis in automatic Nelson-Barr models / Murgui, Clara (CERN) ; Patrone, Samuel (Caltech)
In this study, we numerically show that automatic Nelson-Barr models with new chiral fermions can simultaneously solve the strong CP problem and generate the observed baryon asymmetry via high-scale leptogenesis. [...]
CALT-TH/2025-020 ; CERN-TH-2025-118 ; arXiv:2506.18963. - 40.
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