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Journal articleChekhovsky V, Hayrapetyan A, Makarenko V, et al., 2025,
Identification of low-momentum muons in the CMS detector using multivariate techniques in proton-proton collisions at √<i>s</i>=13.6 TeV
, JOURNAL OF INSTRUMENTATION, Vol: 20 -
Journal article, 2025,
Dark sector searches with the CMS experiment
, Physics Reports, Vol: 1115, Pages: 448-569, ISSN: 0370-1573 -
Journal article, 2025,
Stairway to discovery: A report on the CMS programme of cross section measurements from millibarns to femtobarns
, Physics Reports, Vol: 1115, Pages: 3-115, ISSN: 0370-1573 -
Journal article, 2025,
Review of searches for vector-like quarks, vector-like leptons, and heavy neutral leptons in proton–proton collisions at √s=13 TeV at the CMS experiment
, Physics Reports, Vol: 1115, Pages: 570-677, ISSN: 0370-1573 -
Journal article, 2025,
Searches for Higgs boson production through decays of heavy resonances
, Physics Reports, Vol: 1115, Pages: 368-447, ISSN: 0370-1573 -
Journal article, 2025,
Review of top quark mass measurements in CMS
, Physics Reports, Vol: 1115, Pages: 116-218, ISSN: 0370-1573 -
Journal article, 2025,
Enriching the physics program of the CMS experiment via data scouting and data parking
, Physics Reports, Vol: 1115, Pages: 678-772, ISSN: 0370-1573 -
Journal articleAad G, Aakvaag E, Abbott B, et al., 2025,
Search for Dark Matter Produced in Association with a Dark Higgs Boson in the bb[over ¯] Final State Using pp Collisions at sqrt[s]=13 TeV with the ATLAS Detector.
, Phys Rev Lett, Vol: 134A search is performed for dark matter particles produced in association with a resonantly produced pair of b-quarks with 30<m_{bb}<150 GeV using 140 fb^{-1} of proton-proton collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the LHC. This signature is expected in extensions of the standard model predicting the production of dark matter particles, in particular those containing a dark Higgs boson s that decays into bb[over ¯]. The highly boosted s→bb[over ¯] topology is reconstructed using jet reclustering and a new identification algorithm. This search places stringent constraints across regions of the dark Higgs model parameter space that satisfy the observed relic density, excluding dark Higgs bosons with masses between 30 and 150 GeV in benchmark scenarios with Z^{'} mediator masses up to 4.8 TeV at 95% confidence level.
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Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Test of Lepton Flavor Universality with <i>B<sub>s</sub></i><SUP>0</SUP> → φ<i>l</i><SUP>+</SUP> <i>l</i><SUP>-</SUP> Decays
, PHYSICAL REVIEW LETTERS, Vol: 134, ISSN: 0031-9007 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Search for pair production of heavy particles decaying to a top quark and a gluon in the lepton plus jets final state in proton-proton collisions at √<i>s</i>=13 TeV
, EUROPEAN PHYSICAL JOURNAL C, Vol: 85, ISSN: 1434-6044 -
Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2025,
Search for charge-parity violation in semileptonically tagged <i>D</i><SUP>0</SUP> → <i>K</i><SUP>+</SUP> π<SUP>-</SUP> decays
, JOURNAL OF HIGH ENERGY PHYSICS- Cite
- Citations: 2
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Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Measurement of CP asymmetry in B<sub>s</sub><SUP>0</SUP> → D<sub>s</sub><SUP>∓</SUP> K<SUP>±</SUP> decays
, JOURNAL OF HIGH ENERGY PHYSICS- Cite
- Citations: 1
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Search for Nuclear Modifications of <i>B</i><SUP>+</SUP> Meson Production in <i>p</i>-Pb Collisions at √<i>s</i><sub>NN</sub>=8.16 TeV
, PHYSICAL REVIEW LETTERS, Vol: 134, ISSN: 0031-9007 -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Measurement of φ(1020) meson production in fixed-target <i>p</i> Ne collisions at √<i>s<sub>NN</sub></i>=68.5 GeV
, JOURNAL OF HIGH ENERGY PHYSICS -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Long-lived particle reconstruction downstream of the LHCb magnet (vol 85, 7, 2025)
, EUROPEAN PHYSICAL JOURNAL C, Vol: 85, ISSN: 1434-6044 -
Journal articleChekhovsky V, Hayrapetyan A, Makarenko V, et al., 2025,
Constraints on standard model effective field theory for a Higgs boson produced in association with W or Z bosons in the H → b(b)over-bar decay channel in proton-proton collisions at √<i>s</i>=13 TeV
, JOURNAL OF HIGH ENERGY PHYSICS -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
First Evidence for Direct <i>CP</i> Violation in Beauty to Charmonium Decays
, PHYSICAL REVIEW LETTERS, Vol: 134, ISSN: 0031-9007- Cite
- Citations: 2
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Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Study of Λ<sub>b</sub><SUP>0</SUP> and Ξ<sub>b</sub><SUP>0</SUP> Decays to Λh<SUP>+</SUP> h'<SUP>-</SUP> - and Evidence for CP Violation in Λ<sub>b</sub><SUP>0</SUP> → ΛK<SUP>+</SUP> K<SUP>-</SUP> Decays
, PHYSICAL REVIEW LETTERS, Vol: 134, ISSN: 0031-9007- Cite
- Citations: 5
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Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Observation of the Open-Charm Tetraquark Candidate <i>Tcs</i>0*(2870)<SUP>0</SUP> in the <i>B</i><SUP>-</SUP> → <i>D</i><SUP>-</SUP> <i>D</i><SUP>0</SUP><i>K<sub>S</sub></i><SUP>0</SUP> Decay
, PHYSICAL REVIEW LETTERS, Vol: 134, ISSN: 0031-9007 -
Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2025,
Constraints on the photon polarisation in <i>b → sγ</i> transitions using B<sub>s</sub><SUP>0</SUP><i>→ φe</i><SUP>+</SUP><i>e<SUP>-</SUP></i> decays
, JOURNAL OF HIGH ENERGY PHYSICS -
Journal articleThielemann F, Siemund J, von Schoenfeld D, et al., 2025,
Exploring Atom-Ion Feshbach Resonances below the s-Wave Limit
, PHYSICAL REVIEW X, Vol: 15, ISSN: 2160-3308- Cite
- Citations: 4
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Journal articleGallagher J, Grant CM, Green MJ, et al., 2025,
Measurement of photonuclear jet production in ultraperipheral (Formula presented) collisions at (Formula presented) with the ATLAS detector
, Physical Review D, Vol: 111, ISSN: 2470-0010In ultrarelativistic heavy ion collisions at the LHC, each nucleus acts a sources of high-energy real photons that can scatter off the opposing nucleus in ultraperipheral photonuclear ((Formula presented)) collisions. Hard scattering processes initiated by the photons in such collisions provide a novel method for probing nuclear parton distributions in a kinematic region not easily accessible to other measurements. ATLAS has measured production of dijet and multijet final states in ultraperipheral (Formula presented) collisions at (Formula presented) using a dataset recorded in 2018 with an integrated luminosity of (Formula presented). Photonuclear final states are selected by requiring a rapidity gap in the photon direction; this selects events where one of the outgoing nuclei remains intact. Jets are reconstructed using the anti-(Formula presented) algorithm with radius parameter, (Formula presented). Triple-differential cross sections, unfolded for detector response, are measured and presented using two sets of kinematic variables. The first set consists of the total transverse momentum ((Formula presented)), rapidity, and mass of the jet system. The second set uses (Formula presented) and particle-level nuclear and photon parton momentum fractions, (Formula presented) and (Formula presented), respectively. The results are compared with leading-order perturbative QCD calculations of photonuclear jet production cross sections, where all leading order predictions using existing fits fall below the data in the shadowing region. More detailed theoretical comparisons will allow these results to strongly constrain nuclear parton distributions, and these data provide results from the LHC directly comparable to early physics results at the planned Electron-Ion Collider.
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Search for light long-lived particles decaying to displaced jets in proton-proton collisions at √<i>s</i>=13.6TeV
, REPORTS ON PROGRESS IN PHYSICS, Vol: 88, ISSN: 0034-4885- Cite
- Citations: 2
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Journal articleZwalinski L, Zou W, Zormpa O, et al., 2025,
Software and computing for Run 3 of the ATLAS experiment at the LHC
, European Physical Journal C, Vol: 85, ISSN: 1434-6044The ATLAS experiment has developed extensive software and distributed computing systems for Run 3 of the LHC. These systems are described in detail, including software infrastructure and workflows, distributed data and workload management, database infrastructure, and validation. The use of these systems to prepare the data for physics analysis and assess its quality are described, along with the software tools used for data analysis itself. An outlook for the development of these projects towards Run 4 is also provided.
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Journal articleAcero MA, Acharya B, Adamson P, et al., 2025,
Measurement of d2σ/d
, Physical Review D, Vol: 111, ISSN: 2470-0010Double- and single-differential cross sections for inclusive charged-current νμ-nucleus scattering are reported for the kinematic domain 0 to 2 GeV/c in three-momentum transfer and 0 to 2 GeV in available energy, at a mean νμ energy of 1.86 GeV. The measurements are based on an estimated 995,760 νμ charged-current (CC) interactions in the scintillator medium of the NOvA Near Detector. The subdomain populated by 2-particle-2-hole (2p2h) reactions is identified by the cross section excess relative to predictions for νμ-nucleus scattering that are constrained by a data control sample. Models for 2-particle-2-hole processes are rated by χ2 comparisons of the predicted-versus-measured νμ CC inclusive cross section over the full phase space and in the restricted subdomain. Shortfalls are observed in neutrino generator predictions obtained using the theory-based València and SuSAv2 2p2h models.
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Journal articleZwalinski L, Zou W, Zormpa O, et al., 2025,
Search for light neutral particles decaying promptly into collimated pairs of electrons or muons in pp collisions at s = 13 TeV with the ATLAS detector
, European Physical Journal C, Vol: 85, ISSN: 1434-6044A search for a dark photon, a new light neutral particle, which decays promptly into collimated pairs of electrons or muons is presented. The search targets dark photons resulting from the exotic decay of the Standard Model Higgs boson, assuming its production via the dominant gluon-gluon fusion mode. The analysis is based on 140fb-1 of data collected with the ATLAS detector at the Large Hadron Collider from proton-proton collisions at a center-of-mass energy of 13 TeV. Events with collimated pairs of electrons or muons are analysed and background contributions are estimated using data-driven techniques. No significant excess in the data above the Standard Model background is observed. Upper limits are set at 95% confidence level on the branching ratio of the Higgs boson decay into dark photons between 0.001% and 5%, depending on the assumed dark photon mass and signal model.
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Test of lepton flavor universality in semileptonic (Formula presented) meson decays in proton-proton collisions at (Formula presented)
, Physical Review D, Vol: 111, ISSN: 2470-0010A measurement of the ratio of branching fractions (Formula presented) in the (Formula presented), (Formula presented) decay channel is presented. This measurement uses a sample of proton-proton collision data collected at a center-of-mass energy of (Formula presented) by the CMS experiment in 2018, corresponding to an integrated luminosity of (Formula presented). The measured ratio, (Formula presented), agrees with the value of (Formula presented) predicted by the standard model, which assumes lepton flavor universality. By testing lepton flavor universality, this measurement is a probe of new physics using (Formula presented) mesons, which are currently only produced at the LHC.
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Journal articleAad G, Aakvaag E, Abbott B, et al., 2025,
Configuration, Performance, and Commissioning of the ATLAS <i>b</i>-jet Triggers for the 2022 and 2023 LHC data-taking periods
, JOURNAL OF INSTRUMENTATION, Vol: 20 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Search for the Higgs boson decays to a ρ<SUP>0</SUP>, φ, or K*<SUP>0</SUP> meson and a photon in proton-proton collisions at √<i>s</i>=13 TeV
, PHYSICS LETTERS B, Vol: 862, ISSN: 0370-2693 -
Journal articleAcero MA, Acharya B, Adamson P, et al., 2025,
Dual-Baseline Search for Active-to-Sterile Neutrino Oscillations in NOvA.
, Phys Rev Lett, Vol: 134We report a search for neutrino oscillations to sterile neutrinos under a model with three active and one sterile neutrinos (3+1 model). This analysis uses the NOvA detectors exposed to the NuMI beam, running in neutrino mode. The data exposure, 13.6×10^{20} protons on target, doubles that previously analyzed by NOvA, and the analysis is the first to use ν_{μ} charged-current interactions in conjunction with neutral-current interactions. Neutrino samples in the near and far detectors are fitted simultaneously, enabling the search to be carried out over a Δm_{41}^{2} range extending 2 (3) orders of magnitude above (below) 1 eV^{2}. NOvA finds no evidence for active-to-sterile neutrino oscillations under the 3+1 model at 90% confidence level. New limits are reported in multiple regions of parameter space, excluding some regions currently allowed by IceCube at 90% confidence level. We additionally set the most stringent limits for anomalous ν_{τ} appearance for Δm_{41}^{2}≤3 eV^{2}.
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