Unitarity cuts and Reduction to master integrals in d dimensions for one-loop amplitudes

We present an alternative reduction to master integrals for one-loop amplitudes using a unitarity cut method in arbitrary dimensions. We carry out the reduction in two steps. The first step is a pure four-dimensional cut-integration of tree amplitudes with a mass parameter, and the second step is ap...

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Detalles Bibliográficos
Autores principales: Anastasiou, Charalampos, Britto, Ruth, Feng, Bo, Kunszt, Zoltan, Mastrolia, Pierpaolo
Lenguaje:eng
Publicado: 2006
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/2007/03/111
http://cds.cern.ch/record/1007244
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author Anastasiou, Charalampos
Britto, Ruth
Feng, Bo
Kunszt, Zoltan
Mastrolia, Pierpaolo
author_facet Anastasiou, Charalampos
Britto, Ruth
Feng, Bo
Kunszt, Zoltan
Mastrolia, Pierpaolo
author_sort Anastasiou, Charalampos
collection CERN
description We present an alternative reduction to master integrals for one-loop amplitudes using a unitarity cut method in arbitrary dimensions. We carry out the reduction in two steps. The first step is a pure four-dimensional cut-integration of tree amplitudes with a mass parameter, and the second step is applying dimensional shift identities to master integrals. This reduction is performed at the integrand level, so that coefficients can be read out algebraically.
id cern-1007244
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
record_format invenio
spelling cern-10072442023-10-04T08:16:11Zdoi:10.1088/1126-6708/2007/03/111http://cds.cern.ch/record/1007244engAnastasiou, CharalamposBritto, RuthFeng, BoKunszt, ZoltanMastrolia, PierpaoloUnitarity cuts and Reduction to master integrals in d dimensions for one-loop amplitudesParticle Physics - PhenomenologyWe present an alternative reduction to master integrals for one-loop amplitudes using a unitarity cut method in arbitrary dimensions. We carry out the reduction in two steps. The first step is a pure four-dimensional cut-integration of tree amplitudes with a mass parameter, and the second step is applying dimensional shift identities to master integrals. This reduction is performed at the integrand level, so that coefficients can be read out algebraically.We present an alternative reduction to master integrals for one-loop amplitudes using a unitarity cut method in arbitrary dimensions. We carry out the reduction in two steps. The first step is a pure four-dimensional cut-integration of tree amplitudes with a mass parameter, and the second step is applying dimensional shift identities to master integrals. This reduction is performed at the integrand level, so that coefficients can be read out algebraically.hep-ph/0612277CERN-PH-TH-2006-272CERN-PH-TH-2006-272oai:cds.cern.ch:10072442006-12-21
spellingShingle Particle Physics - Phenomenology
Anastasiou, Charalampos
Britto, Ruth
Feng, Bo
Kunszt, Zoltan
Mastrolia, Pierpaolo
Unitarity cuts and Reduction to master integrals in d dimensions for one-loop amplitudes
title Unitarity cuts and Reduction to master integrals in d dimensions for one-loop amplitudes
title_full Unitarity cuts and Reduction to master integrals in d dimensions for one-loop amplitudes
title_fullStr Unitarity cuts and Reduction to master integrals in d dimensions for one-loop amplitudes
title_full_unstemmed Unitarity cuts and Reduction to master integrals in d dimensions for one-loop amplitudes
title_short Unitarity cuts and Reduction to master integrals in d dimensions for one-loop amplitudes
title_sort unitarity cuts and reduction to master integrals in d dimensions for one-loop amplitudes
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1126-6708/2007/03/111
http://cds.cern.ch/record/1007244
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AT brittoruth unitaritycutsandreductiontomasterintegralsinddimensionsforoneloopamplitudes
AT fengbo unitaritycutsandreductiontomasterintegralsinddimensionsforoneloopamplitudes
AT kunsztzoltan unitaritycutsandreductiontomasterintegralsinddimensionsforoneloopamplitudes
AT mastroliapierpaolo unitaritycutsandreductiontomasterintegralsinddimensionsforoneloopamplitudes

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