title: Precise predictions for w+3 jet production at hadron colliders.
abstract: We report on the first next-to-leading order QCD computation of W+3-jet production in hadronic collisions including all partonic subprocesses. We compare the results with data from the Tevatron and find excellent agreement. The required one-loop matrix elements are computed using on-shell methods, implemented in a numerical program, BlackHat. We use the SHERPA package to generate the real-emission contributions and to integrate the various contributions over phase space. We use a leading-color (large-N_{c}) approximation for the virtual part, which we confirm in W+1, 2-jet production to be valid to within three percent.
authors: Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
authors: C F
authors: CF
authors: Berger
authors: Z
authors: Z
authors: Bern
authors: L J
authors: LJ
authors: Dixon
authors: F Febres
authors: FF
authors: Cordero
authors: D
authors: D
authors: Forde
authors: T
authors: T
authors: Gleisberg
authors: H
authors: H
authors: Ita
authors: D A
authors: DA
authors: Kosower
authors: D
authors: D
authors: Maître