Updated SM calculations of sigmaW/sigmaZ at the Tevatron and the W boson width
Abstract
The central value and theoretical uncertainties on the cross section ratio sigmaW/sigmaZ at the Tevatron are evaluated using the NNLO calculations and the latest MSTW PDFs. The partial width, total width and branching ratios of the W boson in the Standard Model, in the light of the latest electroweak calculations, are also updated.
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