Matching NLO with parton shower in Monte Carlo scheme

A new method of including NLO QCD corrections to the hard process in the LO Monte Carlo (MC) shower is discussed. The method is based on a recently proposed MC factorization scheme, which dramatically simplifies the NLO coefficient functions. The NLO corrections are introduced by simple reweighing o...

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Autor principal: Sapeta, Sebastian
Publicado: 2014
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.nuclphysbps.2015.09.336
http://cds.cern.ch/record/1957165
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author Sapeta, Sebastian
author_facet Sapeta, Sebastian
author_sort Sapeta, Sebastian
collection CERN
description A new method of including NLO QCD corrections to the hard process in the LO Monte Carlo (MC) shower is discussed. The method is based on a recently proposed MC factorization scheme, which dramatically simplifies the NLO coefficient functions. The NLO corrections are introduced by simple reweighing of the events produced by the LO shower with a single, positive MC weight. A practical implementation of the method is presented for the case of electro-weak boson production in the hadron-hadron collision, and the results are compared with well established approaches to NLO+PS matching.
id cern-1957165
institution Organización Europea para la Investigación Nuclear
publishDate 2014
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spelling cern-19571652021-05-11T13:22:00Zdoi:10.1016/j.nuclphysbps.2015.09.336http://cds.cern.ch/record/1957165Sapeta, SebastianMatching NLO with parton shower in Monte Carlo schemeParticle Physics - PhenomenologyA new method of including NLO QCD corrections to the hard process in the LO Monte Carlo (MC) shower is discussed. The method is based on a recently proposed MC factorization scheme, which dramatically simplifies the NLO coefficient functions. The NLO corrections are introduced by simple reweighing of the events produced by the LO shower with a single, positive MC weight. A practical implementation of the method is presented for the case of electro-weak boson production in the hadron-hadron collision, and the results are compared with well established approaches to NLO+PS matching.CERN-PH-TH-2014-203oai:cds.cern.ch:19571652014-10-24
spellingShingle Particle Physics - Phenomenology
Sapeta, Sebastian
Matching NLO with parton shower in Monte Carlo scheme
title Matching NLO with parton shower in Monte Carlo scheme
title_full Matching NLO with parton shower in Monte Carlo scheme
title_fullStr Matching NLO with parton shower in Monte Carlo scheme
title_full_unstemmed Matching NLO with parton shower in Monte Carlo scheme
title_short Matching NLO with parton shower in Monte Carlo scheme
title_sort matching nlo with parton shower in monte carlo scheme
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.nuclphysbps.2015.09.336
http://cds.cern.ch/record/1957165
work_keys_str_mv AT sapetasebastian matchingnlowithpartonshowerinmontecarloscheme

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