Study of W boson production in pPb collisions at sqrt(s[NN]) = 5.02 TeV
Abstract
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 inverse nanobarns at a nucleon-nucleon centre-of-mass energy of sqrt(s[NN]) = 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, and as a function of the lepton pseudorapidity in the abs(eta[lab]) < 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.
Keywords
Cite
@article{arxiv.1503.05825,
title = {Study of W boson production in pPb collisions at sqrt(s[NN]) = 5.02 TeV},
author = {CMS Collaboration},
journal= {arXiv preprint arXiv:1503.05825},
year = {2015}
}
Comments
Replaced with published version. Added journal reference and DOI