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001-es BibID:	BIBFORM120999
035-os BibID:	(Scopus)85107870935 (WoS)000655672400001
Első szerző:	CMS Collaboration
Cím:	Study of Drell-Yan dimuon production in proton-lead collisions at root{s}_{NN} = 8.16 TeV / The CMS collaboration
Dátum:	2021
ISSN:	1126-6708 1029-8479
Megjegyzések:	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.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Hadron-Hadron scattering (experiments) Relativistic heavy ion physics
Megjelenés:	Journal of High Energy Physics. - 2021 : 5 (2021), p. 1-46. -
További szerzők:	Bartók Márton (fizikus) Karancsi János (1987-) (fizikus) Raics Péter (1944-) (fizikus) Trócsányi Zoltán (1961-) (fizikus) Ujvári Balázs (1977-) (fizikus)
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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