Order- alpha s corrections to observables from pp-bar-->W+X-->e+ nu X.

Abstract

A calculation for $p\overline{p}\ensuremath{\rightarrow}{W}^{+}X\ensuremath{\rightarrow}{e}^{+}\ensuremath{\nu}X$ in the next-to-leading-logarithm approximation is presented, utilizing a combination of analytic and Monte Carlo integration techniques. The flexibility of the Monte Carlo technique allows us to present predictions for a variety of observables, while incorporating the effects of experimental cuts. In particular, we present $O({\ensuremath{\alpha}}_{s})$ predictions for the ${p}_{T}(e)$, transverse-mass, and lepton asymmetry distributions for $W\ensuremath{\rightarrow}{e}^{+}\ensuremath{\nu}$ events, including the effect of experimental cuts. We also show that the $K$ factor for $W$-boson production is dependent upon the precise experimental cuts one uses to obtain an event sample.