Tree-level splitting amplitudes for a gluon into four collinear partons

We compute in conventional dimensional regularisation the tree-level splitting amplitudes for a gluon parent which splits into four collinear partons. This is part of the universal infrared behaviour of the QCD scattering amplitudes at next-to-next-to-next-to-leading order (N$^{3}$LO) in the strong...

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Detalles Bibliográficos
Autores principales: Del Duca, Vittorio, Duhr, Claude, Haindl, Rayan, Lazopoulos, Achilleas, Michel, Martin
Lenguaje:eng
Publicado: 2020
Materias:
hep-ph
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1007/JHEP10(2020)093
http://cds.cern.ch/record/2725677
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author Del Duca, Vittorio
Duhr, Claude
Haindl, Rayan
Lazopoulos, Achilleas
Michel, Martin
author_facet Del Duca, Vittorio
Duhr, Claude
Haindl, Rayan
Lazopoulos, Achilleas
Michel, Martin
author_sort Del Duca, Vittorio
collection CERN
description We compute in conventional dimensional regularisation the tree-level splitting amplitudes for a gluon parent which splits into four collinear partons. This is part of the universal infrared behaviour of the QCD scattering amplitudes at next-to-next-to-next-to-leading order (N$^{3}$LO) in the strong coupling constant. Combined with our earlier results for a quark parent, this completes the set of tree-level splitting amplitudes required at this order. We also study iterated collinear limits where a subset of the four collinear partons become themselves collinear.
id cern-2725677
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2020
record_format invenio
spelling cern-27256772023-10-04T06:03:48Zdoi:10.1007/JHEP10(2020)093http://cds.cern.ch/record/2725677engDel Duca, VittorioDuhr, ClaudeHaindl, RayanLazopoulos, AchilleasMichel, MartinTree-level splitting amplitudes for a gluon into four collinear partonshep-phParticle Physics - PhenomenologyWe compute in conventional dimensional regularisation the tree-level splitting amplitudes for a gluon parent which splits into four collinear partons. This is part of the universal infrared behaviour of the QCD scattering amplitudes at next-to-next-to-next-to-leading order (N$^{3}$LO) in the strong coupling constant. Combined with our earlier results for a quark parent, this completes the set of tree-level splitting amplitudes required at this order. We also study iterated collinear limits where a subset of the four collinear partons become themselves collinear.We compute in conventional dimensional regularisation the tree-level splitting amplitudes for a gluon parent which splits into four collinear partons. This is part of the universal infrared behaviour of the QCD scattering amplitudes at next- to-next-to-next-to-leading order (N$^3$LO) in the strong coupling constant. Combined with our earlier results for a quark parent, this completes the set of tree-level splitting amplitudes required at this order. We also study iterated collinear limits where a subset of the four collinear partons become themselves collinear.arXiv:2007.05345oai:cds.cern.ch:27256772020-07-08
spellingShingle hep-ph
Particle Physics - Phenomenology
Del Duca, Vittorio
Duhr, Claude
Haindl, Rayan
Lazopoulos, Achilleas
Michel, Martin
Tree-level splitting amplitudes for a gluon into four collinear partons
title Tree-level splitting amplitudes for a gluon into four collinear partons
title_full Tree-level splitting amplitudes for a gluon into four collinear partons
title_fullStr Tree-level splitting amplitudes for a gluon into four collinear partons
title_full_unstemmed Tree-level splitting amplitudes for a gluon into four collinear partons
title_short Tree-level splitting amplitudes for a gluon into four collinear partons
title_sort tree-level splitting amplitudes for a gluon into four collinear partons
topic hep-ph
Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP10(2020)093
http://cds.cern.ch/record/2725677
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AT haindlrayan treelevelsplittingamplitudesforagluonintofourcollinearpartons
AT lazopoulosachilleas treelevelsplittingamplitudesforagluonintofourcollinearpartons
AT michelmartin treelevelsplittingamplitudesforagluonintofourcollinearpartons

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