A measurement of the lepton charge asymmetry in inclusive pp → WX production at √s = 7 TeV is presented based on data recorded by the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb−1. This high precision measurement of the lepton charge asymmetry, performed in both the W → eν and W → μν channels, provides new insights into parton distribution functions.
Chatrchyan, S.; Baarmand, Marc M.; Dorney, B.; Guragain, Samir; Hohlmann, Marcus; Kalakhety, Himali; Ralich, Robert M.; Vodopiyanov, Igor; and The CMS Collaboration, "Measurement Of The Lepton Charge Asymmetry In Inclusive W Production In pp Collisions At √s = 7 TeV" (2011). Aerospace, Physics, and Space Science Faculty Publications. 566.