W production and properties at CDF

Abstract

I present measurements of the W boson charge asymmetry and the W boson width G_W 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 G_W = 2032 +/- 71 MeV which is in good agreement with the Standard Model prediction.

To appear in the proceedings of the International Europhysics Conference On High Energy Physics (EPS-HEP2007), Manchester, England, July 19-25, 2007

References in corpus (3)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• First Measurements of Inclusive W and Z Cross Sections from Run II of the Tevatron Collider