We compute the leading color, next-to-leading order QCD corrections to the dominant partonic channels for the production of a W boson in association with three jets at the Tevatron and the LHC. This is the first application of generalized unitarity for realistic one-loop calculations. The method performs well in this non-trivial test and offers great promise for the future.
@article{arxiv.0901.4101,
title = {Generalized unitarity at work: first NLO QCD results for hadronic W+3jet production},
author = {R. Keith Ellis and Kirill Melnikov and Giulia Zanderighi},
journal= {arXiv preprint arXiv:0901.4101},
year = {2010}
}