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Inclusive quarkonium production in pp collisions at √s = 5.02 TeV

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    SYSNO ASEP0569929
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleInclusive quarkonium production in pp collisions at √s = 5.02 TeV
    Author(s) Acharya, S. (IN)
    Adamová, Dagmar (UJF-V) RID, ORCID, SAI
    Adler, A. (DE)
    Adolfsson, J. (SE)
    Bielčík, J. (CZ)
    Bielčíková, Jana (UJF-V) RID, ORCID, SAI
    Broz, M. (CZ)
    Contreras, J. G. (CZ)
    Herman, T. (CZ)
    Horák, D. (CZ)
    Isakov, Artem (UJF-V) ORCID, SAI
    Kotliarov, Artem (UJF-V) ORCID, SAI
    Křížek, Filip (UJF-V) RID, ORCID, SAI
    Křížková Gajdošová, K. (CZ)
    Kushpil, Svetlana (UJF-V) RID, ORCID, SAI
    Lavička, R. (CZ)
    Petráček, V. (CZ)
    Šafařík, K. (CZ)
    Torres, S. R. (CZ)
    Závada, Petr (FZU-D) RID, ORCID
    Number of authors1015
    Article number61
    Source TitleEuropean Physical Journal C. - : Springer - ISSN 1434-6044
    Roč. 83, č. 1 (2023)
    Number of pages27 s.
    Publication formPrint - P
    Languageeng - English
    CountryUS - United States
    KeywordsALICE collaboration ; cross section ; pp collisions
    OECD categoryNuclear physics
    R&D ProjectsLTT17018 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
    Research InfrastructureCERN-CZ II - 90104 - Fyzikální ústav AV ČR, v. v. i.
    Method of publishingOpen access
    Institutional supportFZU-D - RVO:68378271 ; UJF-V - RVO:61389005
    UT WOS000927941200003
    EID SCOPUS85146764717
    DOI10.1140/epjc/s10052-022-10896-8
    AnnotationThis article reports on the inclusive production cross section of several quarkonium states, J/psi, psi(2S), Upsilon(1S), Upsilon(2S), and Upsilon(3S), measured with the ALICE detector at the LHC, in pp collisions at root s = 5.02 TeV. The analysis is performed in the dimuon decay channel at forward rapidity (2.5 < y < 4). The integrated cross sections and transverse-momentum (p(T)) and rapidity (y) differential cross sections for J/psi, psi(2S), Upsilon(1S), and the psi(2S)-to-J/psi cross section ratios are presented. The integrated cross sections, assuming unpolarized quarkonia, are: sigma(J/psi) (p(T) < 20 GeV/c) = 5.88 +/- 0.03 +/- 0.34 mu b, sigma(psi(2S)) (p(T) < 12 GeV/c) = 0.87 +/- 0.06 +/- 0.10 mu b, sigma(Upsilon(1S)) (p(T) < 15 GeV/c) = 45.5 +/- 3.9 +/- 3.5 nb, sigma(Upsilon(2S)) (p(T) < 15 GeV/c) = 22.4 +/- 3.2 +/- 2.7 nb, and sigma(Upsilon(3S)) (p(T) < 15 GeV/c) = 4.9 +/- 2.2 +/- 1.0 nb, where the first (second) uncertainty is the statistical (systematic) one. For the first time, the cross sections of the three Upsilon states, as well as the psi(2S) one as a function of p(T) and y, are measured at root s = 5.02 TeV at forward rapidity. These measurements also significantly extend the J/psi p(T) reach and supersede previously published results. A comparison with ALICE measurements in pp collisions at root s = 2.76, 7, 8, and 13 TeV is presented and the energy dependence of quarkonium production cross sections is discussed. Finally, the results are compared with the predictions from several production models.
    WorkplaceNuclear Physics Institute
    ContactMarkéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228
    Year of Publishing2024
    Electronic addresshttps://doi.org/10.1140/epjc/s10052-022-10896-8
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