W production and properties at CDF
Abstract
I present measurements of the W boson charge asymmetry and the W boson width GW using 350 pb-1 of CDF Run II data. The charge asymmetry is the first direct measurement, which uses a new technique to reconstruct the W rapidity by constraining its mass; the result will further constrain Parton Distribution Functions in future fits. The width measurement relies on a fit to the W transverse mass distribution. We measure GW = 2032 +/- 71 MeV which is in good agreement with the Standard Model prediction.
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