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Study of Drell-Yan dimuon production in proton-lead collisions at sqrt(s[NN]) = 8.16 TeVстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 21 июля 2021 г.
- Авторы: Belyaev A.V., Boos E., Bunichev V., Ershov A.A., Gribushin A., Katkov I., Kodolova O., Korotkikh V., Lokhtin I., Obraztsov S., Petrushanko S., Savrin V., Snigirev A., Vardanyan I., CMS Collaboration
- Журнал: Journal of High Energy Physics
- Том: 2021
- Номер: 5
- Год издания: 2021
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Первая страница: 182
- DOI: 10.1007/jhep05(2021)182
- Аннотация: Differential cross sections for the Drell-Yan process, including Z boson production, using the dimuon decay channel are measured in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of 8.16 TeV. A data sample recorded with the CMS detector at the LHC is used, corresponding to an integrated luminosity of 173 nb−1. The differential cross section as a function of the dimuon mass is measured in the range 15-600 GeV, for the first time in proton-nucleus collisions. It is also reported as a function of dimuon rapidity over the mass ranges 15-60 GeV and 60-120 GeV, and ratios for the p-going over the Pb-going beam directions are built. In both mass ranges, the differential cross sections as functions of the dimuon transverse momentum pT and of a geometric variable ϕ∗ are measured, where ϕ∗ highly correlates with pT but is determined with higher precision. In the Z mass region, the rapidity dependence of the data indicate a modification of the distribution of partons within a lead nucleus as compared to the proton case. The data are more precise than predictions based upon current models of parton distributions.
- Добавил в систему: Лохтин Игорь Петрович