Threshold resummation for the prompt-photon cross section revisited

Autores
de Florian, Daniel Enrique; Vogelsang, Werner
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp→γX at high transverse momentum of the photon. These corrections arise near the threshold for the partonic reaction and are associated with soft-gluon emission. We especially focus on the resummation effects for the contribution to the cross section where the photon is produced in jet fragmentation. Previous calculations in perturbation theory at fixed order have established that this contribution is a subdominant part of the cross section. We find, however, that it is subject to much larger resummation effects than the direct (nonfragmentation) piece and therefore appears to be a significant contribution in the fixed-target regime, not much suppressed with respect to the direct part. Inclusion of threshold resummation for the fragmentation piece leads to some improvement in comparisons between theoretical calculations and experimental data. © 2005 The American Physical Society.
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Vogelsang, Werner. Riken Bnl Research Center; Alemania
Materia
Threshold
Resummation
Photon
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/73280
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/73280
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Threshold resummation for the prompt-photon cross section revisitedde Florian, Daniel EnriqueVogelsang, WernerThresholdResummationPhotonhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp→γX at high transverse momentum of the photon. These corrections arise near the threshold for the partonic reaction and are associated with soft-gluon emission. We especially focus on the resummation effects for the contribution to the cross section where the photon is produced in jet fragmentation. Previous calculations in perturbation theory at fixed order have established that this contribution is a subdominant part of the cross section. We find, however, that it is subject to much larger resummation effects than the direct (nonfragmentation) piece and therefore appears to be a significant contribution in the fixed-target regime, not much suppressed with respect to the direct part. Inclusion of threshold resummation for the fragmentation piece leads to some improvement in comparisons between theoretical calculations and experimental data. © 2005 The American Physical Society.Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Vogelsang, Werner. Riken Bnl Research Center; AlemaniaAmerican Physical Society2005-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/73280de Florian, Daniel Enrique; Vogelsang, Werner; Threshold resummation for the prompt-photon cross section revisited; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 72; 1; 7-2005; 1-81550-7998CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.72.014014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:38:58Zoai:ri.conicet.gov.ar:11336/73280instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:38:58.472CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Threshold resummation for the prompt-photon cross section revisited
title Threshold resummation for the prompt-photon cross section revisited
spellingShingle Threshold resummation for the prompt-photon cross section revisited
de Florian, Daniel Enrique
Threshold
Resummation
Photon
title_short Threshold resummation for the prompt-photon cross section revisited
title_full Threshold resummation for the prompt-photon cross section revisited
title_fullStr Threshold resummation for the prompt-photon cross section revisited
title_full_unstemmed Threshold resummation for the prompt-photon cross section revisited
title_sort Threshold resummation for the prompt-photon cross section revisited
dc.creator.none.fl_str_mv de Florian, Daniel Enrique
Vogelsang, Werner
author de Florian, Daniel Enrique
author_facet de Florian, Daniel Enrique
Vogelsang, Werner
author_role author
author2 Vogelsang, Werner
author2_role author
dc.subject.none.fl_str_mv Threshold
Resummation
Photon
topic Threshold
Resummation
Photon
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp→γX at high transverse momentum of the photon. These corrections arise near the threshold for the partonic reaction and are associated with soft-gluon emission. We especially focus on the resummation effects for the contribution to the cross section where the photon is produced in jet fragmentation. Previous calculations in perturbation theory at fixed order have established that this contribution is a subdominant part of the cross section. We find, however, that it is subject to much larger resummation effects than the direct (nonfragmentation) piece and therefore appears to be a significant contribution in the fixed-target regime, not much suppressed with respect to the direct part. Inclusion of threshold resummation for the fragmentation piece leads to some improvement in comparisons between theoretical calculations and experimental data. © 2005 The American Physical Society.
Fil: de Florian, Daniel Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Vogelsang, Werner. Riken Bnl Research Center; Alemania
description We study the resummation of large logarithmic perturbative corrections to the partonic cross sections relevant for the process pp→γX at high transverse momentum of the photon. These corrections arise near the threshold for the partonic reaction and are associated with soft-gluon emission. We especially focus on the resummation effects for the contribution to the cross section where the photon is produced in jet fragmentation. Previous calculations in perturbation theory at fixed order have established that this contribution is a subdominant part of the cross section. We find, however, that it is subject to much larger resummation effects than the direct (nonfragmentation) piece and therefore appears to be a significant contribution in the fixed-target regime, not much suppressed with respect to the direct part. Inclusion of threshold resummation for the fragmentation piece leads to some improvement in comparisons between theoretical calculations and experimental data. © 2005 The American Physical Society.
publishDate 2005
dc.date.none.fl_str_mv 2005-07
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/73280
de Florian, Daniel Enrique; Vogelsang, Werner; Threshold resummation for the prompt-photon cross section revisited; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 72; 1; 7-2005; 1-8
1550-7998
CONICET Digital
CONICET
url http://hdl.handle.net/11336/73280
identifier_str_mv de Florian, Daniel Enrique; Vogelsang, Werner; Threshold resummation for the prompt-photon cross section revisited; American Physical Society; Physical Review D: Particles, Fields, Gravitation and Cosmology; 72; 1; 7-2005; 1-8
1550-7998
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevD.72.014014
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
_version_ 1846082872089247744
score 13.22299

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