Measurement of the W charge asymmetry in production with jets using 5 inverse-femtobarns of data measured at sqrt(s)=7 TeV with CMS

Abstract

A measurement of the electron charge asymmetry in p+→W production in association with jets at sqrt{s}=7 TeV is presented. The dataset corresponds to an integrated luminosity of L=5fb^-1 recorded by the CMS detector in proton-proton collisions at the LHC. The sample represents a large increase in statistical precision with respect to previous CMS results and describes a first study of charge asymmetry measured in p+p→W+1 jet events. Full comparisons to previous results and theoretical predictions are provided and recommendations for extending the analysis to produce valuable input for future PDF models are made.