Quark and gluon spin-2 form factors to two-loops in QCD

We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G* → qq̄ and graviton-gluon-gluon form factor G* → g g in SU(N) gauge theory with nf light flavours using d-dimensional regularisation to all orders in ε = d - 4. Thisisanimportantingredienttonext-to-next-...

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Detalles Bibliográficos
Publicado: 2014
Materias:
NLO Computations
Phenomenology of Large extra dimensions
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n2_p_DeFlorian
http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n2_p_DeFlorian
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_11266708_v2014_n2_p_DeFlorian
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spelling paper:paper_11266708_v2014_n2_p_DeFlorian2023-06-08T16:08:30Z Quark and gluon spin-2 form factors to two-loops in QCD NLO Computations Phenomenology of Large extra dimensions We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G* → qq̄ and graviton-gluon-gluon form factor G* → g g in SU(N) gauge theory with nf light flavours using d-dimensional regularisation to all orders in ε = d - 4. Thisisanimportantingredienttonext-to-next-to- leadingorderQCDcorrections to hadronic scattering processes in models with large extra-dimensions where Kaluza-Klein graviton modes couple to Standard Model fields. We show that these form factors obey Sudakov integro-differential equation and the resulting cusp, collinear and soft anomalous dimensions coincide with those of electroweak vector boson and gluon form factors. We also find the universal behaviour of the infrared singularities in accordance with the proposal by Catani. 2014 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n2_p_DeFlorian http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n2_p_DeFlorian
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic NLO Computations
Phenomenology of Large extra dimensions
spellingShingle NLO Computations
Phenomenology of Large extra dimensions
Quark and gluon spin-2 form factors to two-loops in QCD
topic_facet NLO Computations
Phenomenology of Large extra dimensions
description We present complete two-loop radiative corrections to the graviton-quark-antiquark form factor G* → qq̄ and graviton-gluon-gluon form factor G* → g g in SU(N) gauge theory with nf light flavours using d-dimensional regularisation to all orders in ε = d - 4. Thisisanimportantingredienttonext-to-next-to- leadingorderQCDcorrections to hadronic scattering processes in models with large extra-dimensions where Kaluza-Klein graviton modes couple to Standard Model fields. We show that these form factors obey Sudakov integro-differential equation and the resulting cusp, collinear and soft anomalous dimensions coincide with those of electroweak vector boson and gluon form factors. We also find the universal behaviour of the infrared singularities in accordance with the proposal by Catani.
title Quark and gluon spin-2 form factors to two-loops in QCD
title_short Quark and gluon spin-2 form factors to two-loops in QCD
title_full Quark and gluon spin-2 form factors to two-loops in QCD
title_fullStr Quark and gluon spin-2 form factors to two-loops in QCD
title_full_unstemmed Quark and gluon spin-2 form factors to two-loops in QCD
title_sort quark and gluon spin-2 form factors to two-loops in qcd
publishDate 2014
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2014_n2_p_DeFlorian
http://hdl.handle.net/20.500.12110/paper_11266708_v2014_n2_p_DeFlorian
_version_ 1768543669821898752

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