Research Papers in Physics and Astronomy

 

Date of this Version

2009

Comments

Published in Physical Review Letters 103, 141801 (2009). Copyright © 2009 The American Physical Society. Used by permission.

Abstract

We present a measurement of the W boson mass in Wev decays using 1 fb-1 of data collected with the D0 detector during Run II of the Fermilab Tevatron collider. With a sample of 499830 W ev candidate events, we measure MW = 80.401 ± 0.043 GeV. This is the most precise measurement from a single experiment.

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