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    509047 research outputs found

    Symposium to celebrate Ugo Amaldi’s 90th birthday

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    Symposium to celebrate Ugo Amaldi’s 90th birthday

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    Standard Model at the LHC 2025 (SM@LHC)

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    DUNE Software and Computing Research and Development

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    The international collaboration designing and constructing the Deep Underground Neutrino Experiment (DUNE) at the Long-Baseline Neutrino Facility (LBNF) has developed a two-phase strategy toward the implementation of this leading-edge, large-scale science project. The ambitious physics program of Phase I and Phase II of DUNE is dependent upon deployment and utilization of significant computing resources, and successful research and development of software (both infrastructure and algorithmic) in order to achieve these scientific goals. This submission discusses the computing resources projections, infrastructure support, and software development needed for DUNE during the coming decades as an input to the European Strategy for Particle Physics Update for 2026. The DUNE collaboration is submitting four main contributions to the 2026 Update of the European Strategy for Particle Physics process. This submission to the 'Computing' stream focuses on DUNE software and computing. Additional inputs related to the DUNE science program, DUNE detector technologies and R&D, and European contributions to Fermilab accelerator upgrades and facilities for the DUNE experiment, are also being submitted to other streams

    Quantum Information meets High-Energy Physics: Input to the update of the European Strategy for Particle Physics

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    Some of the most astonishing and prominent properties of Quantum Mechanics, such as entanglement and Bell nonlocality, have only been studied extensively in dedicated low-energy laboratory setups. The feasibility of these studies in the high-energy regime explored by particle colliders was only recently shown, and has gathered the attention of the scientific community. For the range of particles and fundamental interactions involved, particle colliders provide a novel environment where quantum information theory can be probed, with energies exceeding, by about 12 orders of magnitude, the laboratory setups typically used in the field. Furthermore, collider detectors have inherent advantages in performing certain quantum information measurements, and allow for the reconstruction the state of the system under consideration via quantum state tomography. Here, we elaborate on the potential, challenges, and goals of this innovative and rapidly evolving line of research, and discuss its expected impact on both quantum information theory and high-energy physics

    Boosted Higgs Boson Tagging with Graph Neural Networks in the ATLAS Detector

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    The pursuit of detecting high-energy Higgs boson decays into a pair of heavy quarks is a prominent focus within the ATLAS experiment's physics program. In this study, we introduce an innovative tagger that leverages graph networks and employs tracks as input constituents. Our approach demonstrates a substantial improvement when compared to the previous boosted Higgs boson tagger employed by the ATLAS experiment, as observed through extensive Monte Carlo sample analyses. We will present the significant improvements achieved and delve into the details of the training procedure, emphasizing techniques employed to mitigate the tagger's dependency on the reconstructed jet mass

    Symposium to celebrate Ugo Amaldi’s 90th birthday

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    No full text

    Symposium to celebrate Ugo Amaldi’s 90th birthday

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    Angular analysis of the decay Bs0→ϕe+e−B_s^0 \to \phi e^+e^-

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    An angular analysis of the decay Bs0→ϕe+e−B^0_s\to\phi e^+e^- is presented, using proton-proton collision data collected with the LHCb detector between 2011 and 2018 at centre-of-mass energies of 7, 8 and 13 TeV\,\mathrm{Te\kern -0.1em V}. The combined dataset corresponds to an integrated luminosity of 9 fb−19\,\mathrm{fb}^{-1}. Observables are determined by fitting time-integrated projections of the angular distribution in three bins of dielectron mass squared, q2q^2, corresponding to [0.1,1.1][0.1,1.1], [1.1,6.0][1.1,6.0] and [15.0,19.0] GeV2 ⁣/c4[15.0,19.0]\,\mathrm{Ge\kern -0.1em V}^2\!/c^4. The results are compatible with predictions based on the Standard Model of particle physics.An angular analysis of the decay Bs0→ϕe+e−B^0_s\to\phi e^+e^- is presented, using proton-proton collision data collected with the LHCb detector between 2011 and 2018 at centre-of-mass energies of 7, 8 and 13 TeV\,\mathrm{Te\kern -0.1em V}. The combined dataset corresponds to an integrated luminosity of 9 fb−19\,\mathrm{fb}^{-1}. Observables are determined by fitting time-integrated projections of the angular distribution in three bins of dielectron mass squared, q2q^2, corresponding to [0.1,1.1][0.1,1.1], [1.1,6.0][1.1,6.0] and [15.0,19.0] GeV2 ⁣/c4[15.0,19.0]\,\mathrm{Ge\kern -0.1em V}^2\!/c^4. The results are compatible with predictions based on the Standard Model of particle physics

    Light Dark Matter at Accelerators

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