Muon Differential Cross Section and Charge Asymmetry in Inclusive pp to W(mu nu) + X Production at sqrt(s) = 10 TeV

Inclusive $pp\rightarrow W(\mu\nu) + X$ production at the LHC has a large cross section, of the order of ten nanobarns. Studies of the lepton pseudorapidity distribution can provide constraints on the Parton Distribution Functions (PDFs). The differential cross section results at 10 TeV center-of-mass energy are given for an integrated luminosity of 10 pb$^{-1}$. The resulting W muon charge asymmetry, at an integrated luminosity of 100 pb$^{-1}$, is determined to be in the range 0.004 to 0.006 statistical accuracy in 6 measurements of asymmetry as a function of muon pseudorapidity. This is comparable to the PDF uncertainties and can be used to constrain PDF models once the systematic errors are under control.