Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/11608
Title: Study of Drell-Yan dimuon production in proton-lead collisions at root s(NN )=8.16 TeV
Authors: Karapınar, Güler
CMS Collaboration
Keywords: Hadron-Hadron scattering (experiments)
Relativistic heavy ion physics
Issue Date: 2021
Publisher: Springer
Abstract: 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 p(T), and of a geometric variable phi* are measured, where phi* highly correlates with p(T), 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.
URI: https://doi.org/10.1007/JHEP05(2021)182
https://hdl.handle.net/11147/11608
ISSN: 1029-8479
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Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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