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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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2026-03-17
14:31
Measurement of the $|V_{cb}|$ element of the CKM matrix in $t\bar{t}$ decays with the ATLAS detector
The first measurement of the magnitude of the CKM quark mixing matrix element $|V_{cb}|$ using on-shell $W$-boson decays is presented. [...]
CERN-EP-2026-069. - 2026
Fulltext - Previous draft version

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2026-03-17
10:21
Search for direct pair production of top squarks in $pp$ collisions at $\sqrt{s}= 13$ TeV and $13.6$ TeV in events with two oppositely charged leptons using the ATLAS detector
This paper presents the search for direct pair production of top squarks decaying into two on-shell top quarks and two neutralinos in final states with two oppositely charged leptons (electrons or muons), $b$-jets and large missing transverse momentum. [...]
CERN-EP-2026-063. - 2026
Fulltext - Previous draft version

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2026-03-17
04:09
Factorization Beyond Coherence / Becher, Thomas (Bern U. ; U. Bern, AEC) ; Hager, Patrick (CERN) ; Neubert, Matthias (U. Mainz, PRISMA ; Mainz U., Inst. Phys. ; Cornell U., LEPP) ; Schwienbacher, Dominik (Bern U. ; U. Bern, AEC)
We derive a novel factorization theorem for $N$-jettiness at hadron colliders, which incorporates coherence-violating effects induced by Glauber gluons and several new momentum modes. [...]
CERN-TH-2026-039 ; MITP-26-008 ; arXiv:2603.12383. - 8.
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2026-03-17
04:07
Measurement of the local and nonlocal amplitudes in $B^{+}\to K^{+}μ^{+}μ^{-}$ decays / LHCb Collaboration
This paper presents a thorough study of the local and nonlocal amplitudes in $B^+ \to K^+μ^+μ^-$ transitions through an amplitude analysis of the dimuon mass spectrum of the decay. [...]
arXiv:2603.12477 ; LHCb-PAPER-2025-055 ; CERN-EP-2026-018. - 32.
Fulltext

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2026-03-17
04:04
First measurement of time-dependent $CP$ violation in the decay flavor-changing neutral-current decay $B^{0}\rightarrow K_{S}^{0}μ^{+}μ^{-}$ / LHCb Collaboration
A flavor-tagged time-dependent analysis of $B^{0}\rightarrow K_{S}^{0}μ^{+}μ^{-}$ decays is performed across the full dimuon mass range excluding the $J/ψ$ and $ψ(2S)$ resonance regions. [...]
arXiv:2603.13223 ; LHCb-PAPER-2025-062 ; CERN-EP-2026-037. - 22.
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2026-03-17
04:04
Electromagnetic pion mass splitting using PV-regulated photon propagator / De Santis, Alessandro (Helmholtz Inst., Mainz ; Mainz U., Inst. Phys. ; Darmstadt, GSI) ; Erb, Dominik (U. Mainz, PRISMA) ; Meyer, Harvey B. (Helmholtz Inst., Mainz ; U. Mainz, PRISMA ; CERN)
Several hadronic observables are nowadays computed in lattice QCD with a sub-percent precision which requires the inclusion of strong isospin-breaking and electromagnetic effects. [...]
arXiv:2603.10496. - 10.
Fulltext

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2026-03-17
04:03
Factorizing the position-space photon propagator in QED corrections to lattice QCD correlators / Erb, Dominik (U. Mainz, PRISMA ; Mainz U., Inst. Kernphys.) ; Meyer, Harvey B. (U. Mainz, PRISMA ; Helmholtz Inst., Mainz ; CERN ; Mainz U., Inst. Kernphys.) ; Ottnad, Konstantin (Bonn U. ; Bonn U., HISKP)
Electromagnetic corrections to the $n$-point functions of lattice QCD can be evaluated using a position-space photon propagator defined in infinite volume. [...]
arXiv:2603.13086. - 42.
Fulltext

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2026-03-16
13:05
Constraints on couplings to second generation fermions from CMS / Lee, Ming-yan (Aachen, Tech. Hochsch.) /CMS Collaboration
Among Yukawa couplings, those to second-generation fermions are the least constrained, particularly for the charm quark. With larger datasets and improved charm-jet tagging, several analyses have been performed by the CMS collaboration through various methods with proton-proton collision data at $\sqrt{s}=13$\,TeV collected during 2016--2018, corresponding to an integrated luminosity of 138$\text{fb}^{-1}$. [...]
CMS-CR-2025-185.- Geneva : CERN, 2025 - 8 p. Fulltext: PDF;
In : 13th Edition of the Large Hadron Collider Physics Conference (LHCP2025), Taipei, Tw, 5 - 9 May 2025

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2026-03-16
13:03
Searches for additional Higgs bosons (high and low mass) at CMS / Buchot Perraguin, Axel Newton (Alabama U.) /CMS Collaboration
This contribution summarizes five of the most recent analyses by the CMS Collaboration investigating signatures of additional Higgs bosons at low and high mass using proton-proton collision data collected at $\sqrt{s}=13~\mathrm{TeV}$ during Run~2 of the LHC. The results reviewed here correspond to the following searches: a narrow di-photon resonance, neutral Higgs bosons decaying to $b\bar b$, charged Higgs bosons decaying to $t\,b$, light pseudo-scalars in Higgs decays to $4\tau$ and $2\mu2\tau$ final states, and pair-produced new bosons decaying to muons. [...]
CMS-CR-2025-254.- Geneva : CERN, 2025 - 6 p. Fulltext: PDF;
In : The 32nd International Symposium on Lepton Photon Interactions at High Energies (Lepton Photon 2025), Madison, Wisconsin, Us, 25 - 29 Aug 2025

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2026-03-16
11:14
Reinterpretation of searches for supersymmetry in models with variable R-parity-violating coupling strength using the full ATLAS Run 2 dataset
A collection of thirteen ATLAS searches for supersymmetry (SUSY) models, optimized for R-parity-conserving (RPC) and R-parity-violating (RPV) SUSY, are reinterpreted in SUSY models with variable RPV coupling strength, which determines whether the lightest supersymmetric particle decays promptly or is long-lived. [...]
CERN-EP-2026-054. - 2026
Fulltext - Previous draft version

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