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Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2025,
Observation of Exotic J/ψφ Resonant Structure in Diffractive Processes in Proton-Proton Collisions
, PHYSICAL REVIEW LETTERS, Vol: 134, ISSN: 0031-9007- Cite
- Citations: 2
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Measurement of multidifferential cross sections for dijet production in proton-proton collisions at √<i>s</i>=13TeV
, EUROPEAN PHYSICAL JOURNAL C, Vol: 85, ISSN: 1434-6044- Cite
- Citations: 1
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Search for charged-lepton flavor violation in the production and decay of top quarks using trilepton final states in proton-proton collisions at √s=13 TeV
, PHYSICAL REVIEW D, Vol: 111, ISSN: 2470-0010- Cite
- Citations: 1
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Measurement of inclusive and differential cross sections of single top quark production in association with a W boson in proton-proton collisions at √<i>s</i>=13.6 TeV
, JOURNAL OF HIGH ENERGY PHYSICS -
Journal articleFedi G, Collaboration CMS, 2025,
Rare Decays in CMS
, PARTICLES, Vol: 8 -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Search for B<sub>(s)</sub><SUP>*0</SUP> → μ<SUP>+</SUP>μ<SUP>-</SUP> in B<sub>c</sub><SUP>+</SUP> → π<SUP>+</SUP>μ<SUP>+</SUP>μ<SUP>-</SUP> decays
, EUROPEAN PHYSICAL JOURNAL C, Vol: 85, ISSN: 1434-6044 -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Measurement of CP violation in B<SUP>0</SUP> → D<SUP>+</SUP>D<SUP>-</SUP> and B<SUP>0</SUP><sub>s</sub>→ D<SUP>+</SUP> <sub>s</sub> D<SUP>-</SUP> <sub>s</sub> decays
, JOURNAL OF HIGH ENERGY PHYSICS -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Amplitude analysis of <i>B</i><SUP>+</SUP> → ψ(2<i>S</i>)<i>K</i><SUP>+</SUP> π<SUP>+</SUP> π<SUP>-</SUP> decays
, JOURNAL OF HIGH ENERGY PHYSICS- Cite
- Citations: 1
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Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Long-lived particle reconstruction downstream of the LHCb magnet
, EUROPEAN PHYSICAL JOURNAL C, Vol: 85, ISSN: 1434-6044- Cite
- Citations: 1
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Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2025,
Measurement of D<SUP>0</SUP> - (D)over-bar<SUP>0</SUP> mixing and search for CP violation with D<SUP>0</SUP> →K<SUP>+</SUP> π<SUP>-</SUP> decays
, PHYSICAL REVIEW D, Vol: 111, ISSN: 2470-0010 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Measurement of the double-differential inclusive jet cross section in proton-proton collisions at √<i>s</i>=5<i>.</i>02 TeV
, JOURNAL OF HIGH ENERGY PHYSICS- Cite
- Citations: 2
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Journal articleAbe K, Abe S, Bronner C, et al., 2025,
First Joint Oscillation Analysis of Super-Kamiokande Atmospheric and T2K Accelerator Neutrino Data
, PHYSICAL REVIEW LETTERS, Vol: 134, ISSN: 0031-9007- Cite
- Citations: 3
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Journal articleAad G, Aakvaag E, Abbott B, et al., 2025,
Combination of searches for singly and doubly charged Higgs bosons produced via vector-boson fusion in proton–proton collisions at s=13 TeV with the ATLAS detector
, Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, Vol: 860, ISSN: 0370-2693A combination of searches for singly and doubly charged Higgs bosons, H<sup>±</sup> and H<sup>±±</sup>, produced via vector-boson fusion is performed using 140 fb<sup>−1</sup> of proton–proton collisions at a centre-of-mass energy of 13 TeV, collected with the ATLAS detector during Run 2 of the Large Hadron Collider. Searches targeting decays to massive vector bosons in leptonic final states (electrons or muons) are considered. New constraints are reported on the production cross-section times branching fraction for charged Higgs boson masses between 200 GeV and 3000 GeV. The results are interpreted in the context of the Georgi-Machacek model for which the most stringent constraints to date are set for the masses considered in the combination.
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Journal articleAad G, Aakvaag E, Abbott B, et al., 2025,
Measurement of top-quark pair production in association with charm quarks in proton–proton collisions at s=13 TeV with the ATLAS detector
, Physics Letters Section B Nuclear Elementary Particle and High Energy Physics, Vol: 860, ISSN: 0370-2693Inclusive cross-sections for top-quark pair production in association with charm quarks are measured with proton–proton collision data at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 140 fb<sup>−1</sup>, collected with the ATLAS experiment at the LHC between 2015 and 2018. The measurements are performed by requiring one or two charged leptons (electrons and muons), two b-tagged jets, and at least one additional jet in the final state. A custom flavor-tagging algorithm is employed for the simultaneous identification of b-jets and c-jets. In a fiducial phase space that replicates the acceptance of the ATLAS detector, the cross-sections for tt¯+≥2c and tt¯+1c production are measured to be 1.28<inf>−0.24</inf><sup>+0.27</sup>pb and 6.4<inf>−0.9</inf><sup>+1.0</sup>pb, respectively. The measurements are primarily limited by uncertainties in the modeling of inclusive tt¯ and tt¯+bb¯ production, in the calibration of the flavor-tagging algorithm, and by data statistics. Cross-section predictions from various tt¯ simulations are largely consistent with the measured cross-section values, though all underpredict the observed values by 0.5 to 2.0 standard deviations. In a phase-space volume without requirements on the tt¯ decay products and the jet multiplicity, the cross-section ratios of tt¯+≥2c and tt¯+1c to total tt¯+jets production are determined to be (1.23±0.25)% and (8.8±1.3)%.
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Conference paperMaxouti M, Hobson P, Jeremy O, et al., 2025,
Preliminary evaluation of the correspondence between ion-acoustic signals and luminescence from the absorption of pulsed proton beams in a liquid scintillator
, ISSN: 1948-5719For eventual contribution to the subject of radiotherapy with heavy ions, our aim was to advance the field of ionacoustics by establishing the feasibility of using optical images of proton dose deposited in a liquid scintillator as a reference for thermoacoustic measurements in the same liquid. We made the first reported measurements of ultrasound speed and frequency dependent attenuation coefficient of a liquid scintillator, Ultima Gold XR<sup>®</sup>. We then directed pulsed beams of protons from a laser driven accelerator into a phantom filled with the scintillator while making simultaneous observations of the resulting luminescence and thermoacoustic waves. Preliminary comparisons were obtained between the two, as a function of proton energy and degree of collimation, laying a foundation for future work on 3D ionacoustic dosimetry.
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Journal articleBenedikt M, Zimmermann F, Auchmann B, et al., 2025,
Future Circular Collider Feasibility Study Report: Volume 3 Civil Engineering, Implementation and Sustainability
, European Physical Journal Special Topics, ISSN: 1951-6355Volume 3 of the FCC Feasibility Report presents studies related to civil engineering, the development of a project implementation scenario, and environmental and sustainability aspects. The report details the iterative improvements made to the civil engineering concepts since 2018, taking into account subsurface conditions, accelerator and experiment requirements, and territorial considerations. It outlines a technically feasible and economically viable civil engineering configuration that serves as the baseline for detailed subsurface investigations, construction design, cost estimation, and project implementation planning. Additionally, the report highlights ongoing subsurface investigations in key areas to support the development of an improved 3D subsurface model of the region. The report describes the development of the project scenario based on the ‘avoid-reduce-compensate’ iterative optimisation approach. The reference scenario balances optimal physics performance with territorial compatibility, implementation risks, and costs. Environmental field investigations covering almost 600 hectares of terrain—including numerous urban, economic, social, and technical aspects—confirmed the project’s technical feasibility and contributed to the preparation of essential input documents for the formal project authorisation phase. The summary also highlights the initiation of public dialogue as part of the authorisation process. The results of a comprehensive socio-economic impact assessment, which included significant environmental effects, are presented. Even under the most conservative and stringent conditions, a positive benefit-cost ratio for the FCC-ee is obtained. Finally, the report provides a summary of the studies conducted to document the current state of the environment.
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Search for a standard model-like Higgs boson in the mass range between 70 and 110 GeV in the diphoton final state in proton-proton collisions at √<i>s</i>=13 TeV
, PHYSICS LETTERS B, Vol: 860, ISSN: 0370-2693- Cite
- Citations: 2
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Study of WH production through vector boson scattering and extraction of the relative sign of the W and Z couplings to the Higgs boson in proton-proton collisions at √S=13 Te
, PHYSICS LETTERS B, Vol: 860, ISSN: 0370-2693 -
Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2025,
Search for bottom quark associated production of the standard model Higgs boson in final states with leptons in proton-proton collisions at √<i>s</i>=13 TeV
, PHYSICS LETTERS B, Vol: 860, ISSN: 0370-2693 -
Journal articleXu M, Couturier B, Muhammad E, et al., 2025,
Versioning of the DD4hep-based LHCb Detector Description
, EPJ Web of Conferences, Vol: 337, Pages: 01259-01259<jats:p>The LHCb Detector software project is home to the detector description of the LHCb experiment, utilized across all data processing applications, from simulation to reconstruction. It is based on the DD4hep package relying on the combination of XML files and C++ code. A suite of custom developments were introduced to support different versions of the detector layout in different data taking periods.</jats:p><jats:p>The detector descriptions are organized into self-contained, versioned component folders, each containing C++ code and DD4hep CompactXML files. The description of the overall LHCb detector combines specific versions of the components for the period being described. When a sub-detector is identical in two LHCb layouts it can be loaded by both, avoiding code duplication and facilitating future upgrade simulation studies. A convention for naming the versions consistent between the components and the whole detector has been set up. Dependency and convention checks as well as geometry monitoring are enforced by using GitLab’s CI testing. Critically, they include verifications that changes introduced do not affect existing versions.</jats:p>
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Journal articleBurr C, Kreps M, Lu Q, et al., 2025,
LbMCSubmit: Streamlined production and submission of LHCb MC requests
, EPJ Web of Conferences, Vol: 337, Pages: 01258-01258<jats:p>The LHCb experiment requires a wide variety of Monte Carlo simulated samples to support its physics programme and detector upgrade studies. Millions of events are typically requested, so the production system is run centrally via DIRAC on LHCb’s distributed computing resources to handle the demand. To streamline this process, well-defined configurations for request generation and a robust platform for submission, review, and discussion are essential. The package LbMCSubmit was introduced to simplify request definition using a rule-based approach, resolving combinatorial complexities and allowing users to generate full configurations from a structured set of inputs. For submission, a GitLab-based workflow was developed, integrating request submission, review, and automated testing via Continuous Integration (CI). Requests are submitted through GitLab’s merge request system, where they undergo validation before being sent to DIRAC. Introduced in spring 2023 and continuously updated, this system has become the standard for LHCb simulation requests.</jats:p>
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Journal articleAad G, Aakvaag E, Abbott B, et al., 2024,
Simultaneous Unbinned Differential Cross-Section Measurement of Twenty-Four Z+jets Kinematic Observables with the ATLAS Detector.
, Phys Rev Lett, Vol: 133Z boson events at the Large Hadron Collider can be selected with high purity and are sensitive to a diverse range of QCD phenomena. As a result, these events are often used to probe the nature of the strong force, improve Monte Carlo event generators, and search for deviations from standard model predictions. All previous measurements of Z boson production characterize the event properties using a small number of observables and present the results as differential cross sections in predetermined bins. In this analysis, a machine learning method called omnifold is used to produce a simultaneous measurement of twenty-four Z+jets observables using 139 fb^{-1} of proton-proton collisions at sqrt[s]=13 TeV collected with the ATLAS detector. Unlike any previous fiducial differential cross-section measurement, this result is presented unbinned as a dataset of particle-level events, allowing for flexible reuse in a variety of contexts and for new observables to be constructed from the twenty-four measured observables.
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Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2024,
Measurement of Λ<SUP>0</SUP><sub>b</sub>, Λ<SUP>+</SUP><sub>c</sub>, and Λ Decay Parameters Using Λ<SUP>0</SUP><sub>b</sub> →Λ<SUP>+</SUP><sub>c</sub> h<SUP>-</SUP> Decays
, PHYSICAL REVIEW LETTERS, Vol: 133, ISSN: 0031-9007- Cite
- Citations: 6
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Journal articleAad G, Abbott B, Abdallah J, et al., 2024,
Operation and performance of the ATLAS tile calorimeter in LHC Run 2
, EUROPEAN PHYSICAL JOURNAL C, Vol: 84, ISSN: 1434-6044- Cite
- Citations: 2
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Journal articleHayrapetyan A, Tumasyan A, Adam W, et al., 2024,
Model-independent search for pair production of new bosons decaying into muons in proton-proton collisions at √s=13 TeV
, JOURNAL OF HIGH ENERGY PHYSICS- Cite
- Citations: 1
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Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2024,
Analysis of Λ<SUP>0</SUP><sub>b</sub> →pK<SUP>-</SUP> μ<SUP>+</SUP> μ<SUP>-</SUP> decays
, JOURNAL OF HIGH ENERGY PHYSICS -
Journal articleAaij R, Abdelmotteleb ASW, Beteta CA, et al., 2024,
Measurement of <i>CP</i> Violation Observables in <i>D</i><SUP>+</SUP> → <i>K</i><SUP>-</SUP> <i>K</i><SUP>+</SUP> π<SUP>+</SUP> Decays
, PHYSICAL REVIEW LETTERS, Vol: 133, ISSN: 0031-9007- Cite
- Citations: 1
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Journal articleAad G, Aakvaag E, Abbott B, et al., 2024,
Disentangling Sources of Momentum Fluctuations in Xe plus Xe and Pb plus Pb Collisions with the ATLAS Detector
, PHYSICAL REVIEW LETTERS, Vol: 133, ISSN: 0031-9007- Cite
- Citations: 4
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Journal articleTaniuchi N, Abe K, Abe S, et al., 2024,
Search for proton decay via <i>p</i> → <i>e</i><SUP>+</SUP>η and <i>p</i> → μ<SUP>+</SUP>η with a 0.37 Mton-year exposure of Super-Kamiokande
, PHYSICAL REVIEW D, Vol: 110, ISSN: 2470-0010- Cite
- Citations: 2
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Journal articleAaij R, Abdelmotteleb ASW, Abellan Beteta C, et al., 2024,
Study of the rare decay <i>J</i>/ψ → μ<SUP>+</SUP>μ<SUP>-</SUP>μ<SUP>+</SUP>μ<SUP>-</SUP>
, JOURNAL OF HIGH ENERGY PHYSICS, ISSN: 1029-8479
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