Vector Boson + Jets with BlackHat and SHERPA

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Other literature type 01 Aug 2010Embargo end date: 01 Jan 2010 United States, Germany English Publisher:Elsevier BVJournal:Nuclear Physics B - Proceedings Supplements, volume 205-206, pages 92-97 (issn: 0920-5632,

Copyright policy )Funded by:EC | MM-PGT, NSF | LHC Theory Initiative

Authors: Berger, C. F.; Bern, Zvi; Dixon, Lance; Febres Cordero, Fernando; Forde, Darren; Gleisberg, Tanju; Ita, Harald; +2 Authors

doi: 10.1016/j.nuclphysbps.2010.08.025 , 10.48550/arxiv.1005.3728

arXiv: 1005.3728

Vector Boson + Jets with BlackHat and SHERPA

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Abstract

We review recent NLO QCD results for W,Z + 3-jet production at hadron colliders, computed using BlackHat and SHERPA. We also include some new results for Z + 3-jet production at the LHC at 7 TeV. We report new progress towards the NLO cross section for W + 4-jet production. In particular, we show that the virtual matrix elements produced by BlackHat are numerically stable. We also show that with an improved integrator and tree-level matrix elements from BlackHat, SHERPA produces well-behaved real-emission contributions. As an illustration, we present the real-emission contributions -- including dipole-subtraction terms -- to the p_T distribution of the fourth jet, for a single subprocess with the maximum number of gluons.

6 pages, 4 figures, presented at Loops and Legs 2010

Countries

United States, Germany

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Keywords

Quantum Field Theory, Phenomenology-Hep,Hepth, General Physics, Gluons, FOS: Physical sciences, Distribution, Hadrons, 530, 72 Physics Of Elementary Particles And Fields, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Quantum Chromodynamics, Matrix Elements, Bosons, Production, Experiment-Hep, Vectors Experiment-Hep, High Energy Physics - Phenomenology, Cross Sections, Legs, 71 Classical And Quantum Mechanics, Elementary Particles

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