Szczegóły publikacji

Opis bibliograficzny

Inclusive quarkonium production in pp collisions at $\sqrt{s}$ = 5.02 TeV / S. Acharya, [et al.], B. BALIŚ, [et al.], M. GORGOŃ, [et al.], A. HORZYK, [et al.], M. JABŁOŃSKI, [et al.], J. P. KITOWSKI, [et al.], P. J. Konopka, [et al.], S. D. KORYCIAK, [et al.], P. G. RUSSEK, [et al.] // The European Physical Journal. C, Particles and Fields ; ISSN 1434-6044. — 2023 — vol. 83 iss. 1 art. no. 61, s. 1–27. — Bibliogr. s. 20–21, Abstr. — Publikacja dostępna online od: 2023-10-23. — P. J. Konopka - afiliacja: European Organization for Nuclear Research (CERN), Geneva, Switzerland


Autorzy (1024)


Dane bibliometryczne

ID BaDAP145062
Data dodania do BaDAP2023-02-22
Tekst źródłowyURL
DOI10.1140/epjc/s10052-022-10896-8
Rok publikacji2023
Typ publikacjiartykuł w czasopiśmie
Otwarty dostęptak
Creative Commons
Czasopismo/seriaEuropean Physical Journal, C

Abstract

This article reports on the inclusive production cross section of several quarkonium states, J/ψ, ψ(2S), Υ(1S), Υ(2S), and Υ(3S), measured with the ALICE detector at the LHC, in pp collisions at 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 (pT) and rapidity (y) differential cross sections for J/ψ, ψ(2S), Υ(1S), and the ψ(2S)-to-J/ψ cross section ratios are presented. The integrated cross sections, assuming unpolarized quarkonia, are: σJ/ψ (pT<20 GeV/c) = 5.88 ± 0.03 ± 0.34 μb, σψ(2S) (pT<12 GeV/c) = 0.87 ± 0.06 ± 0.10 μb, σΥ(1S) (pT<15 GeV/c) = 45.5 ± 3.9 ± 3.5 nb, σΥ(2S) (pT<15 GeV/c) = 22.4 ± 3.2 ± 2.7 nb, and σΥ(3S) (pT<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 Υ states, as well as the ψ(2S) one as a function of pT and y, are measured at s√=5.02 TeV at forward rapidity. These measurements also significantly extend the J/ψ pT reach and supersede previously published results. A comparison with ALICE measurements in pp collisions at 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.

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