Measurement of the cross section for $W$-boson production in association with jets in $p\bar{p}$ collisions at $\sqrt{s}=1.96$ TeV
T. Aaltonen \fIet al.\fP

We present a measurement of the cross section for $W$-boson production in association with jets in $p\bar{p}$ collisions at $\sqrt{s}=1.96$~TeV. The analysis uses a data sample corresponding to an integrated luminosity of $320$~${\rm pb^{-1}}$ collected with the CDF II detector. $W$ bosons are identified in their electron decay channel and jets are reconstructed using a cone algorithm. For each \wgenjet sample ($n= 1 - 4$) we measure the differential cross section \diffsigmaBR~with respect to the transverse energy $E_T$ of the $n^{th}$-highest $E_{T}$ jet above $20~{\rm GeV}$, and the total cross section \totalsigmaBR, for a restricted $W \rightarrow e\nu$ decay phase space. The cross sections, corrected for all detector effects, can be directly compared to particle level $W+{\rm jet(s)}$ predictions. We present here comparisons to leading order and next-to-leading order predictions.

© 2008 The American Physical Society.