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Suppression and azimuthal anisotropy of prompt and nonprompt J/psi production in PbPb collisions at sqrt(s[NN]) = 2.76 TeVстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 5 июня 2017 г.
- Авторы: Baskakov A., Belyaev A.V., Boos E., Demiyanov A., Ershov A., Gribushin A., Katkov I., Kodolova O., Korotkikh V., Lokhtin I., Miagkov I., Obraztsov S., Petrushanko S., Popov A.A., Savrin V., Snigirev A., Vardanyan I., Zhukov V.Yu, CMS Collaboration
- Журнал: European Physical Journal C
- Том: 77
- Номер: 252
- Год издания: 2017
- Издательство: Springer Verlag
- Местоположение издательства: Germany
- Первая страница: 1
- DOI: 10.1140/epjc/s10052-017-4781-1
- Аннотация: The nuclear modification factor RAA and the azimuthal anisotropy coefficient v[2] of prompt and nonprompt (i.e. those from decays of b hadrons) J/psi mesons, measured from PbPb and pp collisions at sqrt(s[NN])=2.76 TeV at the LHC, are reported. The results are presented in several event centrality intervals and several kinematic regions, for transverse momenta pt>6.5 GeV/c and rapidity abs(y)<2.4, extending down to pt=3 GeV/c in the 1.6<abs(y)<2.4 range. The v[2] of prompt J/psi is found to be nonzero and constant over the full kinematic range studied, while the measured v[2] of nonprompt J/psi is consistent with zero. The RAA of prompt J/psi exhibits a suppression that increases with centrality but does not vary as a function of either y or pt in the fiducial range. The nonprompt J/psi RAA shows a suppression which becomes stronger as rapidity or pt increase. The v[2] and nuclear suppression of open and hidden charm, and of open charm and beauty, are compared.
- Добавил в систему: Лохтин Игорь Петрович