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Sudakov resummation of multiparton QCD cross sections

We present the general expressions for the resummation, up to next-to-leading logarithmic accuracy, of Sudakov-type logarithms in processes with an arbirtrary number of hard-scattering partons. These results document the formulae used by the authors in several previous phenomenological studies. The...

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Detalles Bibliográficos
Autores principales: Bonciani, R, Catani, S, Mangano, Michelangelo L, Nason, P
Lenguaje:eng
Publicado: 2003
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2003.09.068
http://cds.cern.ch/record/626748
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author Bonciani, R
Catani, S
Mangano, Michelangelo L
Nason, P
author_facet Bonciani, R
Catani, S
Mangano, Michelangelo L
Nason, P
author_sort Bonciani, R
collection CERN
description We present the general expressions for the resummation, up to next-to-leading logarithmic accuracy, of Sudakov-type logarithms in processes with an arbirtrary number of hard-scattering partons. These results document the formulae used by the authors in several previous phenomenological studies. The resummation formulae presented here, which are valid for phase-space factorizable observables, determine the resummation correction in a process-independent fashion. All process dependence is encoded in the colour and flavour structure of the leading order and virtual one-loop amplitudes, and in Sudakov weights associated to the cross section kinematics. We explicitly illustrate the application to the case of Drell--Yan and prompt-photon production.
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institution Organización Europea para la Investigación Nuclear
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spelling cern-6267482019-09-30T06:29:59Zdoi:10.1016/j.physletb.2003.09.068http://cds.cern.ch/record/626748engBonciani, RCatani, SMangano, Michelangelo LNason, PSudakov resummation of multiparton QCD cross sectionsParticle Physics - PhenomenologyWe present the general expressions for the resummation, up to next-to-leading logarithmic accuracy, of Sudakov-type logarithms in processes with an arbirtrary number of hard-scattering partons. These results document the formulae used by the authors in several previous phenomenological studies. The resummation formulae presented here, which are valid for phase-space factorizable observables, determine the resummation correction in a process-independent fashion. All process dependence is encoded in the colour and flavour structure of the leading order and virtual one-loop amplitudes, and in Sudakov weights associated to the cross section kinematics. We explicitly illustrate the application to the case of Drell--Yan and prompt-photon production.hep-ph/0307035BICOCCA-FT-2003-17CERN-TH-2003-125oai:cds.cern.ch:6267482003-07-02
spellingShingle Particle Physics - Phenomenology
Bonciani, R
Catani, S
Mangano, Michelangelo L
Nason, P
Sudakov resummation of multiparton QCD cross sections
title Sudakov resummation of multiparton QCD cross sections
title_full Sudakov resummation of multiparton QCD cross sections
title_fullStr Sudakov resummation of multiparton QCD cross sections
title_full_unstemmed Sudakov resummation of multiparton QCD cross sections
title_short Sudakov resummation of multiparton QCD cross sections
title_sort sudakov resummation of multiparton qcd cross sections
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.physletb.2003.09.068
http://cds.cern.ch/record/626748
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