Universality of transverse-momentum resummation and hard factors at the NNLO

Autores
Catani, Stefano; Cieri, Leandro Javier; de Florian, Daniel Enrique; Ferrera, Giancarlo; Grazzini, Massimiliano
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We consider QCD radiative corrections to the production of colorless high-mass systems in hadron collisions. The logarithmically-enhanced contributions at small transverse momentum are treated to all perturbative orders by a universal resummation formula that depends on a single process-dependent hard factor. We show that the hard factor is directly related to the all-order virtual amplitude of the corresponding partonic process. The direct relation is universal (process-independent), and it is expressed by an all-order factorization formula that we explicitly evaluate up to the next-to-next-to-leading order (NNLO) in QCD perturbation theory. Once the NNLO scattering amplitude is available, the corresponding hard factor is directly determined: it controls NNLO contributions in resummed calculations at full next-to-next-to-leading logarithmic accuracy, and it can be used in applications of the qT subtraction formalism to perform fullyexclusive perturbative calculations up to NNLO. The universality structure of the hard factor and its explicit NNLO form are also extended to the related formalism of threshold resummation.
Fil: Catani, Stefano. Universita Degli Studi Di Firenze; Italia
Fil: Cieri, Leandro Javier. Instituto de Investigaciones Universitarias Roma la Sapienza; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: de Florian, Daniel Enrique. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ferrera, Giancarlo. Universita Degli Studi Di Milano; Italia
Fil: Grazzini, Massimiliano. Universitat Zurich; Suiza
Materia
QCD
NNLO
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/17904
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Universality of transverse-momentum resummation and hard factors at the NNLOCatani, StefanoCieri, Leandro Javierde Florian, Daniel EnriqueFerrera, GiancarloGrazzini, MassimilianoQCDNNLOhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We consider QCD radiative corrections to the production of colorless high-mass systems in hadron collisions. The logarithmically-enhanced contributions at small transverse momentum are treated to all perturbative orders by a universal resummation formula that depends on a single process-dependent hard factor. We show that the hard factor is directly related to the all-order virtual amplitude of the corresponding partonic process. The direct relation is universal (process-independent), and it is expressed by an all-order factorization formula that we explicitly evaluate up to the next-to-next-to-leading order (NNLO) in QCD perturbation theory. Once the NNLO scattering amplitude is available, the corresponding hard factor is directly determined: it controls NNLO contributions in resummed calculations at full next-to-next-to-leading logarithmic accuracy, and it can be used in applications of the qT subtraction formalism to perform fullyexclusive perturbative calculations up to NNLO. The universality structure of the hard factor and its explicit NNLO form are also extended to the related formalism of threshold resummation.Fil: Catani, Stefano. Universita Degli Studi Di Firenze; ItaliaFil: Cieri, Leandro Javier. Instituto de Investigaciones Universitarias Roma la Sapienza; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: de Florian, Daniel Enrique. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Ferrera, Giancarlo. Universita Degli Studi Di Milano; ItaliaFil: Grazzini, Massimiliano. Universitat Zurich; SuizaElsevier Science2014-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/17904Catani, Stefano; Cieri, Leandro Javier; de Florian, Daniel Enrique; Ferrera, Giancarlo; Grazzini, Massimiliano; Universality of transverse-momentum resummation and hard factors at the NNLO; Elsevier Science; Nuclear Physics B; 881; 4-2014; 414-4430550-3213enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.nuclphysb.2014.02.011info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0550321314000479?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:58:57Zoai:ri.conicet.gov.ar:11336/17904instacron: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:34982025-09-03 09:58:57.902CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Universality of transverse-momentum resummation and hard factors at the NNLO
title Universality of transverse-momentum resummation and hard factors at the NNLO
spellingShingle Universality of transverse-momentum resummation and hard factors at the NNLO
Catani, Stefano
QCD
NNLO
title_short Universality of transverse-momentum resummation and hard factors at the NNLO
title_full Universality of transverse-momentum resummation and hard factors at the NNLO
title_fullStr Universality of transverse-momentum resummation and hard factors at the NNLO
title_full_unstemmed Universality of transverse-momentum resummation and hard factors at the NNLO
title_sort Universality of transverse-momentum resummation and hard factors at the NNLO
dc.creator.none.fl_str_mv Catani, Stefano
Cieri, Leandro Javier
de Florian, Daniel Enrique
Ferrera, Giancarlo
Grazzini, Massimiliano
author Catani, Stefano
author_facet Catani, Stefano
Cieri, Leandro Javier
de Florian, Daniel Enrique
Ferrera, Giancarlo
Grazzini, Massimiliano
author_role author
author2 Cieri, Leandro Javier
de Florian, Daniel Enrique
Ferrera, Giancarlo
Grazzini, Massimiliano
author2_role author
author
author
author
dc.subject.none.fl_str_mv QCD
NNLO
topic QCD
NNLO
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 QCD radiative corrections to the production of colorless high-mass systems in hadron collisions. The logarithmically-enhanced contributions at small transverse momentum are treated to all perturbative orders by a universal resummation formula that depends on a single process-dependent hard factor. We show that the hard factor is directly related to the all-order virtual amplitude of the corresponding partonic process. The direct relation is universal (process-independent), and it is expressed by an all-order factorization formula that we explicitly evaluate up to the next-to-next-to-leading order (NNLO) in QCD perturbation theory. Once the NNLO scattering amplitude is available, the corresponding hard factor is directly determined: it controls NNLO contributions in resummed calculations at full next-to-next-to-leading logarithmic accuracy, and it can be used in applications of the qT subtraction formalism to perform fullyexclusive perturbative calculations up to NNLO. The universality structure of the hard factor and its explicit NNLO form are also extended to the related formalism of threshold resummation.
Fil: Catani, Stefano. Universita Degli Studi Di Firenze; Italia
Fil: Cieri, Leandro Javier. Instituto de Investigaciones Universitarias Roma la Sapienza; Italia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: de Florian, Daniel Enrique. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Ferrera, Giancarlo. Universita Degli Studi Di Milano; Italia
Fil: Grazzini, Massimiliano. Universitat Zurich; Suiza
description We consider QCD radiative corrections to the production of colorless high-mass systems in hadron collisions. The logarithmically-enhanced contributions at small transverse momentum are treated to all perturbative orders by a universal resummation formula that depends on a single process-dependent hard factor. We show that the hard factor is directly related to the all-order virtual amplitude of the corresponding partonic process. The direct relation is universal (process-independent), and it is expressed by an all-order factorization formula that we explicitly evaluate up to the next-to-next-to-leading order (NNLO) in QCD perturbation theory. Once the NNLO scattering amplitude is available, the corresponding hard factor is directly determined: it controls NNLO contributions in resummed calculations at full next-to-next-to-leading logarithmic accuracy, and it can be used in applications of the qT subtraction formalism to perform fullyexclusive perturbative calculations up to NNLO. The universality structure of the hard factor and its explicit NNLO form are also extended to the related formalism of threshold resummation.
publishDate 2014
dc.date.none.fl_str_mv 2014-04
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/11336/17904
Catani, Stefano; Cieri, Leandro Javier; de Florian, Daniel Enrique; Ferrera, Giancarlo; Grazzini, Massimiliano; Universality of transverse-momentum resummation and hard factors at the NNLO; Elsevier Science; Nuclear Physics B; 881; 4-2014; 414-443
0550-3213
url http://hdl.handle.net/11336/17904
identifier_str_mv Catani, Stefano; Cieri, Leandro Javier; de Florian, Daniel Enrique; Ferrera, Giancarlo; Grazzini, Massimiliano; Universality of transverse-momentum resummation and hard factors at the NNLO; Elsevier Science; Nuclear Physics B; 881; 4-2014; 414-443
0550-3213
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.nuclphysb.2014.02.011
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0550321314000479?via%3Dihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 13.13397

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