We report the measurement of the rates and asymmetries of inclusive and
differential production of W and Z vector bosons in pp collision at
s​=7 TeV. The data consists of 36 pb−1 collected in the Compact
Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC). The measured
inclusive cross sections are σ(pp→WX)×B(W→ℓν)=10.31±0.02(stat.)±0.09(syst.)±0.10(th.)±0.41(lumi.) nb and
σ(pp→ZX)×B(Z→ℓℓ)=0.975±0.007(stat.)±0.007(syst.)±0.018(th.)±0.039(lumi.) nb. The measured inclusive cross
sections and also its ratio of W to Z or W+ to W− agree with NNLO QCD
cross section calculations and current parton distribution functions (PDFs).
The differential production asymmetry of W boson as a function of the lepton
pseudorapidity in the final state is also measured and compared with various
PDFs.Comment: Proceedings of the DPF-2011 Conference, Providence, RI, August 8-13,
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