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Exclusive dielectron production in ultraperipheral Pb+Pb collisions at √s.sub.NN./sub. = 5.02 TeV with ATLAS

  1. 1.
    SYSNO ASEP0577315
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleExclusive dielectron production in ultraperipheral Pb+Pb collisions at √sNN = 5.02 TeV with ATLAS
    Author(s) Aad, G. (FR)
    Abbott, B. (US)
    Abbott, D.C. (US)
    Chudoba, Jiří (FZU-D) RID, ORCID
    Hejbal, Jiří (FZU-D) RID, ORCID
    Jačka, Petr (FZU-D) ORCID
    Kepka, Oldřich (FZU-D) RID, ORCID
    Kroll, Jiří (FZU-D) ORCID
    Kupčo, Alexander (FZU-D) RID, ORCID
    Latoňová, Věra (FZU-D) ORCID
    Lokajíček, Miloš (FZU-D) RID, ORCID
    Lysák, Roman (FZU-D) RID, ORCID
    Marčišovský, Michal (FZU-D) RID, ORCID
    Mikeštíková, Marcela (FZU-D) RID, ORCID
    Němeček, Stanislav (FZU-D) RID, ORCID
    Šícho, Petr (FZU-D) RID, ORCID
    Staroba, Pavel (FZU-D) RID, ORCID
    Svatoš, Michal (FZU-D) RID, ORCID
    Taševský, Marek (FZU-D) RID, ORCID
    Number of authors2915
    Article number182
    Source TitleJournal of High Energy Physics. - : Springer - ISSN 1029-8479
    Roč. 2023, č. 6 (2023)
    Number of pages42 s.
    Languageeng - English
    CountryDE - Germany
    Keywordsheavy ion experiments ; heavy-ion collision ; lead: nucleus
    Subject RIVBF - Elementary Particles and High Energy Physics
    OECD categoryParticles and field physics
    Research InfrastructureCERN-CZ III - 90240 - Fyzikální ústav AV ČR, v. v. i.
    Method of publishingOpen access
    Institutional supportFZU-D - RVO:68378271
    UT WOS001069745300005
    EID SCOPUS85163887123
    DOI https://doi.org/10.1007/JHEP06(2023)182
    AnnotationExclusive production of dielectron pairs, γγ → e++e−−, is studied using LintLint​ = 1.72 nb−1−1 of data from ultraperipheral collisions of lead nuclei at sNNsNN​ ​ = 5.02 TeV recorded by the ATLAS detector at the LHC. The process of interest proceeds via photon–photon interactions in the strong electromagnetic fields of relativistic lead nuclei. Dielectron production is measured in the fiducial region defined by following requirements: electron transverse momentum pTepTe​> 2.5 GeV, absolute electron pseudorapidity |ηee| < 2.5, dielectron invariant mass meeee​> 5 GeV, and dielectron transverse momentum pTeepTee​< 2 GeV. Differential cross-sections are measured as a function of meeee​, average pTepTe​, absolute dielectron rapidity |yeeee​|, and scattering angle in the dielectron rest frame, |cos θ∗∗|, in the inclusive sample, and also with a requirement of no activity in the forward direction.
    WorkplaceInstitute of Physics
    ContactKristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
    Year of Publishing2024
    Electronic addresshttps://hdl.handle.net/11104/0346522
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