December 2007, to be published in Physical Review D1


Measurement of the muon charge asymmetry from $W$ boson decays
V. M. Abazov \fIet al.\fP ( Collaboration)

We present a measurement of the muon charge asymmetry from $W$ boson decays using 0.3~fb$^{-1}$ of data collected at $\sqrt{s}=1.96$~GeV between 2002 and 2004 with the D0 detector at the Fermilab Tevatron $p\overline{p}$ Collider. We compare our findings with expectations from next-to-leading-order calculations performed using the CTEQ6.1M and MRST04 NLO parton distribution functions. Our findings can be used to constrain future parton distribution function fits.

© 2008 The American Physical Society.