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Title
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Study of W boson production in pPb collisions at = 5.02 TeV
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Author
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Institution/Organisation
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CMS Collaboration
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Abstract
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| The first study of W boson production in pPb collisions is presented, for bosons decaying to a muon or electron, and a neutrino. The measurements are based on a data sample corresponding to an integrated luminosity of 34.6 nb(-1) at a nucleon-nucleon centre-of-mass energy of root(NN)-N-S = 5.02 TeV, collected by the CMS experiment. The W boson differential cross sections, lepton charge asymmetry, and forward-backward asymmetries are measured for leptons of transverse momentum exceeding 25 GeV/c, and as a function of the lepton pseudorapidity in the vertical bar eta(lab)vertical bar < 2.4 range. Deviations from the expectations based on currently available parton distribution functions are observed, showing the need for including W boson data in nuclear parton distribution global fits. (C) 2015 CERN for the benefit of the CMS Collaboration. Published by Elsevier B.V. |
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Language
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English
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Source (journal)
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Physics letters : B. - Amsterdam, 1967, currens
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Publication
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Amsterdam
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North-Holland
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2015
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ISSN
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0370-2693
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DOI
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10.1016/J.PHYSLETB.2015.09.057
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Volume/pages
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750
(2015)
, p. 565-586
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ISI
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000364250600086
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Full text (Publisher's DOI)
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Full text (open access)
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