Publication at Faculty of Mathematics and Physics |
2009
Abstract
We present a measurement of the W boson mass in W -} e nu 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 -} e nu candidate events, we measure M-W=80.401 /- 0.043 GeV.
This is the most precise measurement from a single experiment.