Vector Boson Jets with BlackHat and Sherpa

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We review recent NLO QCD results for W, Z + 3-jet production at hadron colliders, computing using BlackHat and SHERPA, and including also some new results for Z + 3-jet production for 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 ... continued below

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6 pages

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Berger, C.F.; /MIT, LNS; Bern, Z.; /UCLA; Dixon, Lance J.; /SLAC et al. August 25, 2010.

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Description

We review recent NLO QCD results for W, Z + 3-jet production at hadron colliders, computing using BlackHat and SHERPA, and including also some new results for Z + 3-jet production for 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{sub T} distribution of the fourth jet, for a single subprocess with the maximum number of gluons.

Physical Description

6 pages

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  • Journal Name: Nucl.Phys.Proc.Suppl.205-206:92-97,2010; Conference: Invited10th DESY Workshop On Elementary Particle Theory: Loops And Legs In Quantum Field Theory 2010, Woerlitz, Germany, 4/25/2010-4/30/2010

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  • Report No.: SLAC-PUB-14105
  • Grant Number: AC02-76SF00515
  • Office of Scientific & Technical Information Report Number: 992428
  • Archival Resource Key: ark:/67531/metadc1012228

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  • August 25, 2010

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  • Oct. 14, 2017, 8:36 a.m.

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  • Nov. 3, 2017, 1:52 p.m.

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Berger, C.F.; /MIT, LNS; Bern, Z.; /UCLA; Dixon, Lance J.; /SLAC et al. Vector Boson Jets with BlackHat and Sherpa, article, August 25, 2010; [California]. (digital.library.unt.edu/ark:/67531/metadc1012228/: accessed May 24, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.