Polarized triple-collinear splitting functions at NLO for processes with photons
[EN]We compute the polarized splitting functions in the triple collinear limit at next-to-leading order accuracy (NLO) in the strong coupling αS, for the splitting processes gamma->q q- gamma, gamma->q qbar g, and g -> q qbar gamma. The divergent structure of each splitting function was com...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universidad de Salamanca (USAL) |
| Repositorio: | GREDOS. Repositorio Institucional de la Universidad de Salamanca |
| OAI Identifier: | oai:gredos.usal.es:10366/168836 |
| Acceso en línea: | http://hdl.handle.net/10366/168836 |
| Access Level: | acceso abierto |
| Palabra clave: | Collinear limit Spin-dependent splitting functions Perturbative QFT Altarelli-Parisi equations |
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Polarized triple-collinear splitting functions at NLO for processes with photonsSborlini, German F. R.Florian, Daniel deRodrigo, GermánCollinear limitSpin-dependent splitting functionsPerturbative QFTAltarelli-Parisi equations[EN]We compute the polarized splitting functions in the triple collinear limit at next-to-leading order accuracy (NLO) in the strong coupling αS, for the splitting processes gamma->q q- gamma, gamma->q qbar g, and g -> q qbar gamma. The divergent structure of each splitting function was compared to the predicted behaviour according to Catani’s formula. The results obtained in this paper are compatible with the unpolarized splitting functions computed in a previous article. Explicit results for NLO corrections are presented in the context of conventional dimensional regularization (CDR). [ES] Calculamos las funciones de splitting polarizadas en el límite triple colineal con precisión de orden siguiente al líder (NLO) en el acoplamiento fuerte aS para los procesos de splitting gamma->q q- gamma, gamma->q qbar g, y g -> q qbar gamma. La estructura divergente de cada función de splitting se comparó con el comportamiento predicho según la fórmula de Catani. Los resultados obtenidos en este trabajo son compatibles con las funciones de splitting no polarizadas calculadas en un artículo previo. Se presentan resultados explícitos para las correcciones NLO en el marco de la regularización dimensional convencional (CDR).Springer Nature202620262015info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10366/168836reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)InglésPITN-GA2010-264564FPA2011-23778CSD2007-00042PROMETEUII/2013/007info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1688362026-06-07T06:28:51Z |
| dc.title.none.fl_str_mv |
Polarized triple-collinear splitting functions at NLO for processes with photons |
| title |
Polarized triple-collinear splitting functions at NLO for processes with photons |
| spellingShingle |
Polarized triple-collinear splitting functions at NLO for processes with photons Sborlini, German F. R. Collinear limit Spin-dependent splitting functions Perturbative QFT Altarelli-Parisi equations |
| title_short |
Polarized triple-collinear splitting functions at NLO for processes with photons |
| title_full |
Polarized triple-collinear splitting functions at NLO for processes with photons |
| title_fullStr |
Polarized triple-collinear splitting functions at NLO for processes with photons |
| title_full_unstemmed |
Polarized triple-collinear splitting functions at NLO for processes with photons |
| title_sort |
Polarized triple-collinear splitting functions at NLO for 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 Spin-dependent splitting functions Perturbative QFT Altarelli-Parisi equations |
| topic |
Collinear limit Spin-dependent splitting functions Perturbative QFT Altarelli-Parisi equations |
| description |
[EN]We compute the polarized splitting functions in the triple collinear limit at next-to-leading order accuracy (NLO) in the strong coupling αS, for the splitting processes gamma->q q- gamma, gamma->q qbar g, and g -> q qbar gamma. The divergent structure of each splitting function was compared to the predicted behaviour according to Catani’s formula. The results obtained in this paper are compatible with the unpolarized splitting functions computed in a previous article. Explicit results for NLO corrections are presented in the context of conventional dimensional regularization (CDR). [ES] Calculamos las funciones de splitting polarizadas en el límite triple colineal con precisión de orden siguiente al líder (NLO) en el acoplamiento fuerte aS para los procesos de splitting gamma->q q- gamma, gamma->q qbar g, y g -> q qbar gamma. La estructura divergente de cada función de splitting se comparó con el comportamiento predicho según la fórmula de Catani. Los resultados obtenidos en este trabajo son compatibles con las funciones de splitting no polarizadas calculadas en un artículo previo. Se presentan resultados explícitos para las correcciones NLO en el marco de la regularización dimensional convencional (CDR). |
| publishDate |
2015 |
| dc.date.none.fl_str_mv |
2015 2026 2026 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10366/168836 |
| url |
http://hdl.handle.net/10366/168836 |
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Inglés |
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Inglés |
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PITN-GA2010-264564 FPA2011-23778 CSD2007-00042 PROMETEUII/2013/007 |
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info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
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application/pdf |
| dc.publisher.none.fl_str_mv |
Springer Nature |
| publisher.none.fl_str_mv |
Springer Nature |
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reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca instname:Universidad de Salamanca (USAL) |
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Universidad de Salamanca (USAL) |
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GREDOS. Repositorio Institucional de la Universidad de Salamanca |
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GREDOS. Repositorio Institucional de la Universidad de Salamanca |
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1869417466140033024 |
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15.812455 |