Triple collinear splitting functions at NLO for scattering processes with photons

[EN]We present splitting functions in the triple collinear limit at next-to-leading order. The computation was performed in the context of massless QCD+QED, considering only processes which include at least one photon. Through the comparison of the IR divergent structure of splitting amplitudes with...

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Detalhes bibliográficos
Autores: Sborlini, German F. R., Florian, Daniel de, Rodrigo, Germán
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:España
Recursos:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/168835
Acesso em linha:http://hdl.handle.net/10366/168835
Access Level:acceso abierto
Palavra-chave:Collinear limit
Splitting functions
Perturbative QFT
Altarelli-Parisi equations
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spelling Triple collinear splitting functions at NLO for scattering processes with photonsSborlini, German F. R.Florian, Daniel deRodrigo, GermánCollinear limitSplitting functionsPerturbative QFTAltarelli-Parisi equations[EN]We present splitting functions in the triple collinear limit at next-to-leading order. The computation was performed in the context of massless QCD+QED, considering only processes which include at least one photon. Through the comparison of the IR divergent structure of splitting amplitudes with the expected known behavior, we were able to check our results. Besides that we implemented some consistency checks based on symmetry arguments and cross-checked the results among them. Studying photon-started processes, we obtained very compact results. [ES] Presentamos las funciones de splitting en el límite triple colineal a orden siguiente al líder (NLO). El cálculo se realizó en el contexto de QCD + QED sin masas, considerando únicamente procesos que incluyen al menos un fotón. Mediante la comparación de la estructura divergente infrarroja (IR) de las amplitudes de splitting con el comportamiento conocido esperado, pudimos verificar nuestros resultados. Además, implementamos diversas comprobaciones de consistencia basadas en argumentos de simetría y contrastamos los resultados entre sí. Al estudiar procesos iniciados por fotones, obtuvimos resultados muy compactos.Springer Nature202620262014info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/168835reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésPITN-GA-2010-264564FPA2011-23778CSD2007-00042PROMETEUII/2013/007info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1688352026-06-07T06:28:51Z
dc.title.none.fl_str_mv Triple collinear splitting functions at NLO for scattering processes with photons
title Triple collinear splitting functions at NLO for scattering processes with photons
spellingShingle Triple collinear splitting functions at NLO for scattering processes with photons
Sborlini, German F. R.
Collinear limit
Splitting functions
Perturbative QFT
Altarelli-Parisi equations
title_short Triple collinear splitting functions at NLO for scattering processes with photons
title_full Triple collinear splitting functions at NLO for scattering processes with photons
title_fullStr Triple collinear splitting functions at NLO for scattering processes with photons
title_full_unstemmed Triple collinear splitting functions at NLO for scattering processes with photons
title_sort Triple collinear splitting functions at NLO for scattering processes with photons
dc.creator.none.fl_str_mv Sborlini, German F. R.
Florian, Daniel de
Rodrigo, Germán
author Sborlini, German F. R.
author_facet Sborlini, German F. R.
Florian, Daniel de
Rodrigo, Germán
author_role author
author2 Florian, Daniel de
Rodrigo, Germán
author2_role author
author
dc.subject.none.fl_str_mv Collinear limit
Splitting functions
Perturbative QFT
Altarelli-Parisi equations
topic Collinear limit
Splitting functions
Perturbative QFT
Altarelli-Parisi equations
description [EN]We present splitting functions in the triple collinear limit at next-to-leading order. The computation was performed in the context of massless QCD+QED, considering only processes which include at least one photon. Through the comparison of the IR divergent structure of splitting amplitudes with the expected known behavior, we were able to check our results. Besides that we implemented some consistency checks based on symmetry arguments and cross-checked the results among them. Studying photon-started processes, we obtained very compact results. [ES] Presentamos las funciones de splitting en el límite triple colineal a orden siguiente al líder (NLO). El cálculo se realizó en el contexto de QCD + QED sin masas, considerando únicamente procesos que incluyen al menos un fotón. Mediante la comparación de la estructura divergente infrarroja (IR) de las amplitudes de splitting con el comportamiento conocido esperado, pudimos verificar nuestros resultados. Además, implementamos diversas comprobaciones de consistencia basadas en argumentos de simetría y contrastamos los resultados entre sí. Al estudiar procesos iniciados por fotones, obtuvimos resultados muy compactos.
publishDate 2014
dc.date.none.fl_str_mv 2014
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/168835
url http://hdl.handle.net/10366/168835
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv PITN-GA-2010-264564
FPA2011-23778
CSD2007-00042
PROMETEUII/2013/007
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Springer Nature
publisher.none.fl_str_mv Springer Nature
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812455

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