Study of Drell-Yan dimuon production in proton-lead collisions at √sNN = 8.16 TeV; Journal of High Energy Physics; Vol. 2021, iss. 5

Study of Drell-Yan dimuon production in proton-lead collisions at √sNN = 8.16 TeV; Journal of High Energy Physics; Vol. 2021, iss. 5

Dades bibliogràfiques
Parent link:Journal of High Energy Physics
Vol. 2021, iss. 5.— 2021.— [182, 46 p.]
Autor corporatiu: Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Altres autors: Sirunyan A. M., Tumasyan A. R., Adam W. Wolfgang, Babaev A. A. Anton Anatoljevich, Yuzhakov A. D. Aleksandr Dmitrievich, Okhotnikov V. V. Vitaly Vladimirovich, Sukhikh L. G. Leonid Grigorievich
Sumari:Title screen
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.
Idioma:anglès
Publicat: 2021
Matèries:
электронный ресурс
труды учёных ТПУ
Hadron-Hadron scattering (experiments)
Relativistic heavy ion physics
Accés en línia:http://earchive.tpu.ru/handle/11683/74925
https://doi.org/10.1007/JHEP05(2021)182
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=668615

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