Precise Predictions for W + 4 Jet Production at the Large Hadron Collider
arXiv:1009.2338 · doi:10.1103/PhysRevLett.106.092001
Abstract
We present the first next-to-leading order QCD results for W + 4-jet production at hadron colliders. Total cross sections, as well as distributions in the jet transverse momenta and in the total transverse energy H_T are provided for the initial LHC energy of \sqrt{s} = 7 TeV. We use a leading-color approximation, known to be accurate to 3% for W production with fewer jets. The virtual matrix elements and the most complicated real-emission matrix elements are handled by the BlackHat library, based on on-shell methods. The remaining parts of the calculation, including the integration over phase space, are performed by the SHERPA package.
5 pages, 3 figures, 2 tables. v2: W^+ + 4 jets NLO results added, plus minor typo corrections
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