Two-loop amplitudes and master integrals for the production of a Higgs boson via a massive quark and a scalar-quark loop

We compute all two-loop master integrals which are required for the evaluation of next-to-leading order QCD corrections in Higgs boson production via gluon fusion. Many two-loop amplitudes for 2 -> 1 processes in the Standard Model and beyond can be expressed in terms of these integrals using aut...

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Detalles Bibliográficos
Autores principales: Anastasiou, C, Beerli, S, Bucherer, S, Daleo, A, Kunszt, Zoltán
Lenguaje:eng
Publicado: 2006
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1088/1126-6708/2007/01/082
http://cds.cern.ch/record/1000047
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author Anastasiou, C
Beerli, S
Bucherer, S
Daleo, A
Kunszt, Zoltán
author_facet Anastasiou, C
Beerli, S
Bucherer, S
Daleo, A
Kunszt, Zoltán
author_sort Anastasiou, C
collection CERN
description We compute all two-loop master integrals which are required for the evaluation of next-to-leading order QCD corrections in Higgs boson production via gluon fusion. Many two-loop amplitudes for 2 -> 1 processes in the Standard Model and beyond can be expressed in terms of these integrals using automated reduction techniques. These integrals also form a subset of the master integrals for more complicated 2 -> 2 amplitudes with massive propagators in the loops. As a first application, we evaluate the two-loop amplitude for Higgs boson production in gluon fusion via a massive quark. Our result is the first independent check of the calculation of Spira, Djouadi, Graudenz and Zerwas. We also present for the first time the two-loop amplitude for gg -> h via a massive squark.
id cern-1000047
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2006
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spelling cern-10000472019-09-30T06:29:59Zdoi:10.1088/1126-6708/2007/01/082http://cds.cern.ch/record/1000047engAnastasiou, CBeerli, SBucherer, SDaleo, AKunszt, ZoltánTwo-loop amplitudes and master integrals for the production of a Higgs boson via a massive quark and a scalar-quark loopParticle Physics - PhenomenologyWe compute all two-loop master integrals which are required for the evaluation of next-to-leading order QCD corrections in Higgs boson production via gluon fusion. Many two-loop amplitudes for 2 -> 1 processes in the Standard Model and beyond can be expressed in terms of these integrals using automated reduction techniques. These integrals also form a subset of the master integrals for more complicated 2 -> 2 amplitudes with massive propagators in the loops. As a first application, we evaluate the two-loop amplitude for Higgs boson production in gluon fusion via a massive quark. Our result is the first independent check of the calculation of Spira, Djouadi, Graudenz and Zerwas. We also present for the first time the two-loop amplitude for gg -> h via a massive squark.hep-ph/0611236CERN-PH-TH-2006-235oai:cds.cern.ch:10000472006-11-17
spellingShingle Particle Physics - Phenomenology
Anastasiou, C
Beerli, S
Bucherer, S
Daleo, A
Kunszt, Zoltán
Two-loop amplitudes and master integrals for the production of a Higgs boson via a massive quark and a scalar-quark loop
title Two-loop amplitudes and master integrals for the production of a Higgs boson via a massive quark and a scalar-quark loop
title_full Two-loop amplitudes and master integrals for the production of a Higgs boson via a massive quark and a scalar-quark loop
title_fullStr Two-loop amplitudes and master integrals for the production of a Higgs boson via a massive quark and a scalar-quark loop
title_full_unstemmed Two-loop amplitudes and master integrals for the production of a Higgs boson via a massive quark and a scalar-quark loop
title_short Two-loop amplitudes and master integrals for the production of a Higgs boson via a massive quark and a scalar-quark loop
title_sort two-loop amplitudes and master integrals for the production of a higgs boson via a massive quark and a scalar-quark loop
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1088/1126-6708/2007/01/082
http://cds.cern.ch/record/1000047
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AT beerlis twoloopamplitudesandmasterintegralsfortheproductionofahiggsbosonviaamassivequarkandascalarquarkloop
AT bucherers twoloopamplitudesandmasterintegralsfortheproductionofahiggsbosonviaamassivequarkandascalarquarkloop
AT daleoa twoloopamplitudesandmasterintegralsfortheproductionofahiggsbosonviaamassivequarkandascalarquarkloop
AT kunsztzoltan twoloopamplitudesandmasterintegralsfortheproductionofahiggsbosonviaamassivequarkandascalarquarkloop

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