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Production of ϒ(nS) mesons in Pb + Pb and pp collisions at 5.02 TeV

A measurement of the production of vector bottomonium states, ϒ (1S), ϒ (2S), and ϒ (3S), in Pb + Pb and pp collisions at a center-of-mass energy per nucleon pair of 5.02 TeV is presented. The data correspond to integrated luminosities of 1.38 nb−1 of Pb + Pb data collected in 2018, 0.44 nb−1 of Pb...

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Main Authors: Aad, Georges (Author) , Baltes, Lisa Marie (Author) , Bartels, Falk (Author) , Castillo, Florencia Luciana (Author) , Czurylo, Marta (Author) , Rio, Fernando del (Author) , Dittmeier, Sebastian (Author) , Dunford, Monica (Author) , Franchino, Silvia (Author) , Klassen, Martin (Author) , Krishnan, Anjali (Author) , Mkrtchyan, Tigran (Author) , Ott, Philipp (Author) , Rassloff, Damir Fabrice (Author) , Rodriguez Bosca, Sergi (Author) , Sauer, Christof (Author) , Schöning, André (Author) , Schultz-Coulon, Hans-Christian (Author) , Sothilingam, Varsiha (Author) , Stamen, Rainer (Author) , Starovoitov, Pavel (Author) , Vigani, Luigi (Author) , Weber, Sebastian (Author) , Wessels, Martin (Author) , Yue, Xiaoguang (Author) , Zinßer, Joachim (Author)
Corporate Author: ATLAS Collaboration (Author)
Format: Article (Journal)
Language:English
Published: 22 May 2023
In: Physical review
Year: 2023, Volume: 107, Issue: 5, Pages: 1-25
ISSN:2469-9993
DOI:10.1103/PhysRevC.107.054912
Online Access:Verlag, kostenfrei, Volltext: https://doi.org/10.1103/PhysRevC.107.054912
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevC.107.054912
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Author Notes:G. Aad et al.* (ATLAS Collaboration)
Description
Summary:A measurement of the production of vector bottomonium states, ϒ (1S), ϒ (2S), and ϒ (3S), in Pb + Pb and pp collisions at a center-of-mass energy per nucleon pair of 5.02 TeV is presented. The data correspond to integrated luminosities of 1.38 nb−1 of Pb + Pb data collected in 2018, 0.44 nb−1 of Pb + Pb data collected in 2015, and 0.26 fb−1 of pp data collected in 2017 by the ATLAS detector at the Large Hadron Collider. The measurements are performed in the dimuon decay channel for transverse momentum pμμ T < 30 GeV, absolute rapidity |yμμ| < 1.5, and Pb + Pb event centrality 0–80%. The production rates of the three bottomonium states in Pb + Pb collisions are compared with those in pp collisions to extract the nuclear modification factors as functions of event centrality, pμμ T , and |yμμ|. In addition, the suppression of the excited states relative to the ground state is studied. The results are compared with theoretical model calculations.
Item Description:Gesehen am 18.11.2024
The ATLAS collaboration: G. Aad, L.M. Baltes, F. Bartels, F.L. Castillo, M.M. Czurylo, F. Del Rio, S. Dittmeier, M. Dunford, S. Franchino, M. Klassen, A. Krishnan, T. Mkrtchyan, P. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H.C. Schultz-Coulon, V. Sothilingam, R. Stamen, P. Starovoitov, L. Vigani, S.M. Weber, M. Wessels, X. Yue, J. Zinsser [und 2863 weitere]
Physical Description:Online Resource
ISSN:2469-9993
DOI:10.1103/PhysRevC.107.054912

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