Key points are not available for this paper at this time.
The differential cross section and charge asymmetry for inclusive pp W + X + X production at s = 8 TeV are measured as a function of muon pseudorapidity. The data sample corresponds to an integrated luminosity of 18.8 fb -1 recorded with the CMS detector at the LHC. These results provide important constraints on the parton distribution functions of the proton in the range of the Bjorken scaling variable x from 10 -3 to 10 -1 .
Khachatryan et al. (Mon,) studied this question.