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Study of Z boson production in pPb collisions at $\sqrt{^{s}NN}$ =5.02TeV


CMS Collaboration; Canelli, F; Chiochia, V; Kilminster, B; Robmann, P; et al (2016). Study of Z boson production in pPb collisions at $\sqrt{^{s}NN}$ =5.02TeV. Physics Letters B, 759:36-57.

Abstract

The production of Z bosons in pPb collisions at $\sqrt{^{s}NN}$ = 5.02 TeV is studied by the CMS experiment via the electron and muon decay channels. The inclusive cross sec- tion is compared to pp collision predictions, and found to scale with the number of elementary nucleon-nucleon collisions. The differential cross sections as a function of the Z boson rapidity and transverse momentum are measured. Though they are found to be consistent within uncertainty with theoretical predictions both with and without nuclear effects, the forward-backward asymmetry suggests the presence of nuclear effects at large rapidities. These results provide new data for constraining nuclear parton distribution functions.

Abstract

The production of Z bosons in pPb collisions at $\sqrt{^{s}NN}$ = 5.02 TeV is studied by the CMS experiment via the electron and muon decay channels. The inclusive cross sec- tion is compared to pp collision predictions, and found to scale with the number of elementary nucleon-nucleon collisions. The differential cross sections as a function of the Z boson rapidity and transverse momentum are measured. Though they are found to be consistent within uncertainty with theoretical predictions both with and without nuclear effects, the forward-backward asymmetry suggests the presence of nuclear effects at large rapidities. These results provide new data for constraining nuclear parton distribution functions.

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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2016
Deposited On:10 Jan 2017 09:45
Last Modified:02 Feb 2018 11:17
Publisher:Elsevier
ISSN:0370-2693
OA Status:Gold
Free access at:Publisher DOI. An embargo period may apply.
Publisher DOI:https://doi.org/10.1016/j.physletb.2016.05.044

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