We present a measurement of the cross section for W-boson
production in association with jets in p anti-p collisions at s**(1/2) =
1.96 TeV. The analysis uses a data sample corresponding to an integrated
luminosity of 320 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 W + > n-jet sample (n = 1 - 4)
we measure sigma(p anti-p --> W + > n-jet) x B(W --> e nu)
with respect to the transverse energy E(t) of the nth-highest E(t)
jet above 20 GeV, for a restricted W --> e nu decay phase space.
The cross sections, corrected for all detector effects, can be directly
compared to particle level W + jet(s) predictions. We present here
comparisons to leading order and next-to-leading order predictions.
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Updated: Monday, 2008 February 11 12:14:55 CST automatically from input from carol picciolo