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Study of Drell-Yan dimuon production in proton-lead collisions at √sNN = 8.16 TeV
dc.contributor.author | Sirunyan, A. M. | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2022-04-06T04:45:35Z | pt_BR |
dc.date.issued | 2021 | pt_BR |
dc.identifier.issn | 1029-8479 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/236611 | pt_BR |
dc.description.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 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. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The journal of high energy physics. Trieste. No. 5 (May 2021), 182, 46 p. | pt_BR |
dc.rights | Open Access | en |
dc.subject | Hadron-Hadron scattering (experiments) | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | Colisões proton-proton | pt_BR |
dc.subject | Relativistic heavy ion physics | en |
dc.subject | Colisao de ions pesados | pt_BR |
dc.title | Study of Drell-Yan dimuon production in proton-lead collisions at √sNN = 8.16 TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001127745 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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