Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL

Autores
Cieri, Leandro; Coradeschi, Francesco; de Florian, Daniel Enrique
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We consider the transverse-momentum (qT ) distribution of a diphoton pair pro- duced in hadron collisions. At small values of qT , we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading logarithmic accuracy. At intermediate and large values of qT , we consistently combine resummation with the known next-to-leading order perturbative result. All perturbative terms up to order αS2 are in- cluded in our computation which, after integration over qT , reproduces the known next- to-next-to-leading order result for the diphoton pair production total cross section. We present a comparison with LHC data and an estimate of the perturbative accuracy of the theoretical calculation by performing the corresponding variation of scales. In general we observe that the effect of the resummation is not only to recover the predictivity of the calculation at small transverse momentum, but also to improve substantially the agreement with the experimental data.
Fil: Cieri, Leandro. Universidad de Roma; Italia
Fil: Coradeschi, Francesco. Universidad de Firenze; Italia
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
Materia
diphoton
lac
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:11336/44538
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLLCieri, LeandroCoradeschi, Francescode Florian, Daniel Enriquediphotonlachttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We consider the transverse-momentum (qT ) distribution of a diphoton pair pro- duced in hadron collisions. At small values of qT , we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading logarithmic accuracy. At intermediate and large values of qT , we consistently combine resummation with the known next-to-leading order perturbative result. All perturbative terms up to order αS2 are in- cluded in our computation which, after integration over qT , reproduces the known next- to-next-to-leading order result for the diphoton pair production total cross section. We present a comparison with LHC data and an estimate of the perturbative accuracy of the theoretical calculation by performing the corresponding variation of scales. In general we observe that the effect of the resummation is not only to recover the predictivity of the calculation at small transverse momentum, but also to improve substantially the agreement with the experimental data.Fil: Cieri, Leandro. Universidad de Roma; ItaliaFil: Coradeschi, Francesco. Universidad de Firenze; ItaliaFil: 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; ArgentinaSpringer2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/44538Cieri, Leandro; Coradeschi, Francesco; de Florian, Daniel Enrique; Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL; Springer; Journal of High Energy Physics; 2015; 6; 6-2015; 1-22; 1851029-8479CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/JHEP06(2015)185info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP06(2015)185info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:48:56Zoai:ri.conicet.gov.ar:11336/44538instacron: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 14:48:57.179CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
title Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
spellingShingle Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
Cieri, Leandro
diphoton
lac
title_short Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
title_full Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
title_fullStr Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
title_full_unstemmed Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
title_sort Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL
dc.creator.none.fl_str_mv Cieri, Leandro
Coradeschi, Francesco
de Florian, Daniel Enrique
author Cieri, Leandro
author_facet Cieri, Leandro
Coradeschi, Francesco
de Florian, Daniel Enrique
author_role author
author2 Coradeschi, Francesco
de Florian, Daniel Enrique
author2_role author
author
dc.subject.none.fl_str_mv diphoton
lac
topic diphoton
lac
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 consider the transverse-momentum (qT ) distribution of a diphoton pair pro- duced in hadron collisions. At small values of qT , we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading logarithmic accuracy. At intermediate and large values of qT , we consistently combine resummation with the known next-to-leading order perturbative result. All perturbative terms up to order αS2 are in- cluded in our computation which, after integration over qT , reproduces the known next- to-next-to-leading order result for the diphoton pair production total cross section. We present a comparison with LHC data and an estimate of the perturbative accuracy of the theoretical calculation by performing the corresponding variation of scales. In general we observe that the effect of the resummation is not only to recover the predictivity of the calculation at small transverse momentum, but also to improve substantially the agreement with the experimental data.
Fil: Cieri, Leandro. Universidad de Roma; Italia
Fil: Coradeschi, Francesco. Universidad de Firenze; Italia
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
description We consider the transverse-momentum (qT ) distribution of a diphoton pair pro- duced in hadron collisions. At small values of qT , we resum the logarithmically-enhanced perturbative QCD contributions up to next-to-next-to-leading logarithmic accuracy. At intermediate and large values of qT , we consistently combine resummation with the known next-to-leading order perturbative result. All perturbative terms up to order αS2 are in- cluded in our computation which, after integration over qT , reproduces the known next- to-next-to-leading order result for the diphoton pair production total cross section. We present a comparison with LHC data and an estimate of the perturbative accuracy of the theoretical calculation by performing the corresponding variation of scales. In general we observe that the effect of the resummation is not only to recover the predictivity of the calculation at small transverse momentum, but also to improve substantially the agreement with the experimental data.
publishDate 2015
dc.date.none.fl_str_mv 2015-06
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/11336/44538
Cieri, Leandro; Coradeschi, Francesco; de Florian, Daniel Enrique; Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL; Springer; Journal of High Energy Physics; 2015; 6; 6-2015; 1-22; 185
1029-8479
CONICET Digital
CONICET
url http://hdl.handle.net/11336/44538
identifier_str_mv Cieri, Leandro; Coradeschi, Francesco; de Florian, Daniel Enrique; Diphoton Production at Hadron Colliders: Transverse-Momentum Resummation at NNLL; Springer; Journal of High Energy Physics; 2015; 6; 6-2015; 1-22; 185
1029-8479
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/JHEP06(2015)185
info:eu-repo/semantics/altIdentifier/doi/10.1007/JHEP06(2015)185
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
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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
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score 13.22299

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