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Measurement of the azimuthal anisotropy of Upsilon(1S) and Upsilon(2S) mesons in PbPb collisions at sqrt(s[NN]) = 5.02 TeVстатья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или ScopusДата последнего поиска статьи во внешних источниках: 25 августа 2021 г.
- Авторы: Belyaev A.V., Boos E., Ershov A.A., Gribushin A., Kaminskiy A., Kodolova O., Korotkikh V., Lokhtin I., Obraztsov S., Petrushanko S., Savrin V., Snigirev A., Vardanyan I., CMS Collaboration
- Журнал: Physics Letters B
- Том: 819
- Год издания: 2021
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 136385
- DOI: 10.1016/j.physletb.2021.136385
- Аннотация: The second-order Fourier coefficients (v2) characterizing the azimuthal distribution of Υ(1S) and Υ(2S) mesons arising from PbPb collisions at sNN−−−√= 5.02 TeV are studied. The Υ mesons are reconstructed in their dimuon decay channel, as measured by the CMS detector. The data set was collected in 2018 and corresponds to an integrated luminosity of 1.7 nb−1. The scalar product method is used to extract the v2 coefficients of the azimuthal distribution. Results are reported for the rapidity range |y|< 2.4, with the transverse momentum 0 <pT< 50 GeV/c, and in three centrality ranges of 10-30, 30-50 and 50-90%. In contrast to the J/ψ mesons, no azimuthal anisotropy is observed for the Υ mesons.
- Добавил в систему: Лохтин Игорь Петрович