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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
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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
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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.
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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.
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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.
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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
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