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  • Charged-hadron and identified-hadron (▫$K_s^0,\and, \xi^− $▫) yield measurements in photonuclear Pb+Pb and 𝑝+Pb collisions at ▫$\sqrt {s_{NN}}$▫=5.02TeV with ATLAS [Elektronski vir]
    Aad, Georges ...
    This paper presents the measurement of charged-hadron and identified-hadron (𝐾0 S, Λ, Ξ−) yields in photonuclear collisions using 1.7nb−1 of √𝑠𝑁⁢𝑁=5.02TeV Pb+Pb data collected in 2018 with the ... ATLAS detector at the Large Hadron Collider. Candidate photonuclear events are selected using a combination of tracking and calorimeter information, including the zero-degree calorimeter. The yields as a function of transverse momentum and rapidity are measured in these photonuclear collisions as a function of charged-particle multiplicity. These photonuclear results are compared with 0.1nb−1 of √𝑠𝑁⁢𝑁=5.02TeV 𝑝+Pb data collected in 2016 by ATLAS using similar charged-particle multiplicity selections. These photonuclear measurements shed light on potential quark-gluon plasma formation in photonuclear collisions via observables sensitive to radial flow, enhanced baryon-to-meson ratios, and strangeness enhancement. The results are also compared with the Monte Carlo dpmjet-iii generator and hydrodynamic calculations to test whether such photonuclear collisions may produce small droplets of quark-gluon plasma that flow collectively.
    Source: Physical review. C.. - ISSN 2469-9993 (Vol. 111, [article number] 064908, Jun. 2025, 1-33 str.)
    Type of material - e-article ; adult, serious
    Publish date - 2025
    Language - english
    COBISS.SI-ID - 247010307

    Link(s):

    https://journals.aps.org/prc/pdf/10.1103/7lx4-x8rw
    DOI

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