Vector Boson + Jets with BlackHat and SHERPA

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 th...

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Detalles Bibliográficos
Autores principales: Berger, C F, Bern, Z, Dixon, L J, Cordero Febres, F, Forde, D, Gleisberg, T, Ita, H, Kosower, D A, Maitre, D
Lenguaje:eng
Publicado: 2010
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysbps.2010.08.025
http://cds.cern.ch/record/1267071
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author Berger, C F
Bern, Z
Dixon, L J
Cordero Febres, F
Forde, D
Gleisberg, T
Ita, H
Kosower, D A
Maitre, D
author_facet Berger, C F
Bern, Z
Dixon, L J
Cordero Febres, F
Forde, D
Gleisberg, T
Ita, H
Kosower, D A
Maitre, D
author_sort Berger, C F
collection CERN
description 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.
id cern-1267071
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2010
record_format invenio
spelling cern-12670712019-09-30T06:29:59Zdoi:10.1016/j.nuclphysbps.2010.08.025http://cds.cern.ch/record/1267071engBerger, C FBern, ZDixon, L JCordero Febres, FForde, DGleisberg, TIta, HKosower, D AMaitre, DVector Boson + Jets with BlackHat and SHERPAParticle Physics - PhenomenologyWe 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.arXiv:1005.3728SLAC-PUB-14105UCLA-10-TEP-104MIT-CTP 4150SB-F-380-10IPPP-10-34SACLAY IPHT-T10-065NIKHEF-2010-013CERN-PH-TH-2010-109oai:cds.cern.ch:12670712010-05-21
spellingShingle Particle Physics - Phenomenology
Berger, C F
Bern, Z
Dixon, L J
Cordero Febres, F
Forde, D
Gleisberg, T
Ita, H
Kosower, D A
Maitre, D
Vector Boson + Jets with BlackHat and SHERPA
title Vector Boson + Jets with BlackHat and SHERPA
title_full Vector Boson + Jets with BlackHat and SHERPA
title_fullStr Vector Boson + Jets with BlackHat and SHERPA
title_full_unstemmed Vector Boson + Jets with BlackHat and SHERPA
title_short Vector Boson + Jets with BlackHat and SHERPA
title_sort vector boson + jets with blackhat and sherpa
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.nuclphysbps.2010.08.025
http://cds.cern.ch/record/1267071
work_keys_str_mv AT bergercf vectorbosonjetswithblackhatandsherpa
AT bernz vectorbosonjetswithblackhatandsherpa
AT dixonlj vectorbosonjetswithblackhatandsherpa
AT corderofebresf vectorbosonjetswithblackhatandsherpa
AT forded vectorbosonjetswithblackhatandsherpa
AT gleisbergt vectorbosonjetswithblackhatandsherpa
AT itah vectorbosonjetswithblackhatandsherpa
AT kosowerda vectorbosonjetswithblackhatandsherpa
AT maitred vectorbosonjetswithblackhatandsherpa

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