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Article
Report number arXiv:1611.03002 ; CERN-EP-2016-278 ; CERN-EP-2016-278
Title W and Z boson production in p–Pb collisions at sNN=5.02 TeV
Author(s) ALICE collaboration  Show all 1009 authors
Publication 2017-02-15
Imprint 31 Oct 2016
Number of pages 23
Note 24 pages, 8 captioned figures, 3 tables, authors from page 18, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/3249
In: JHEP 02 (2017) 077
DOI 10.1007/JHEP02(2017)077
Subject category Nuclear Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ALICE
Free keywords electroweak interaction ; relativistic heavy ion physics ; lepton production ; experimental results
Abstract The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at sNN=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (4.46<ycms<2.96) and forward (2.03<ycms<3.53) rapidity regions, corresponding to Pb-going and p-going directions, respectively. The Z-boson production cross section, with dimuon invariant mass of 60<mμμ<120 GeV/c2 and muon transverse momentum (pTμ) larger than 20 GeV/c, is measured. The production cross section and charge asymmetry of muons from W-boson decays with pTμ>10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties.
Copyright/License preprint: © 2016-2025 CERN (License: CC-BY-4.0)
publication: © 2017-2025 CERN (License: CC-BY-4.0)



Corresponding record in: Inspire
Email contact: enrico.scomparin@cern.ch


 Record created 2016-10-31, last modified 2024-11-27


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