The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory

Autores
Bozzi, G.; Catani, S.; de Florian, Daniel Enrique; Grazzini, M.
Año de publicación
2003
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We consider the transverse-momentum (qT) distribution of Higgs bosons produced at hadron colliders. We use a formalism that uniformly treats both the small-qT and large-qT regions in QCD perturbation theory. At small qT (qT ≪ MH, MH being the mass of the Higgs boson), we implement an all-order resummation of logarithmically-enhanced contributions up to next-to-next-to-leading logarithmic accuracy. At large qT (qT ≳ MH), we use fixed-order perturbation theory up to next-to-leading order. The resummed and fixed-order approaches are consistently matched by avoiding double-counting in the intermediate-qT region. In this region, the introduction of unjustified higher-order terms is avoided by imposing unitarity constraints, so that the integral of the qT spectrum exactly reproduces the perturbative result for the total cross section up to next-to-next-to-leading order. Numerical results at the LHC are presented. These show that the main features of the qT distribution are quite stable with respect to perturbative QCD uncertainties.
Fil: Bozzi, G.. Università degli Studi di Firenze; Italia
Fil: Catani, S.. Cern - European Organization For Nuclear Research; Suiza
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: Grazzini, M.. Università degli Studi di Firenze; Italia. Cern - European Organization For Nuclear Research; Suiza
Materia
Higgs
Lhc
Qcd
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:11336/75110
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The qT spectrum of the Higgs boson at the LHC in QCD perturbation theoryBozzi, G.Catani, S.de Florian, Daniel EnriqueGrazzini, M.HiggsLhcQcdhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We consider the transverse-momentum (qT) distribution of Higgs bosons produced at hadron colliders. We use a formalism that uniformly treats both the small-qT and large-qT regions in QCD perturbation theory. At small qT (qT ≪ MH, MH being the mass of the Higgs boson), we implement an all-order resummation of logarithmically-enhanced contributions up to next-to-next-to-leading logarithmic accuracy. At large qT (qT ≳ MH), we use fixed-order perturbation theory up to next-to-leading order. The resummed and fixed-order approaches are consistently matched by avoiding double-counting in the intermediate-qT region. In this region, the introduction of unjustified higher-order terms is avoided by imposing unitarity constraints, so that the integral of the qT spectrum exactly reproduces the perturbative result for the total cross section up to next-to-next-to-leading order. Numerical results at the LHC are presented. These show that the main features of the qT distribution are quite stable with respect to perturbative QCD uncertainties.Fil: Bozzi, G.. Università degli Studi di Firenze; ItaliaFil: Catani, S.. Cern - European Organization For Nuclear Research; SuizaFil: 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: Grazzini, M.. Università degli Studi di Firenze; Italia. Cern - European Organization For Nuclear Research; SuizaElsevier Science2003-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/75110Bozzi, G.; Catani, S.; de Florian, Daniel Enrique; Grazzini, M.; The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory; Elsevier Science; Physics Letters B; 564; 1-2; 7-2003; 65-720370-2693CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(03)00656-7info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0370269303006567info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:43:07Zoai:ri.conicet.gov.ar:11336/75110instacron: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:34982025-09-29 10:43:07.991CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
title The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
spellingShingle The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
Bozzi, G.
Higgs
Lhc
Qcd
title_short The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
title_full The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
title_fullStr The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
title_full_unstemmed The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
title_sort The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory
dc.creator.none.fl_str_mv Bozzi, G.
Catani, S.
de Florian, Daniel Enrique
Grazzini, M.
author Bozzi, G.
author_facet Bozzi, G.
Catani, S.
de Florian, Daniel Enrique
Grazzini, M.
author_role author
author2 Catani, S.
de Florian, Daniel Enrique
Grazzini, M.
author2_role author
author
author
dc.subject.none.fl_str_mv Higgs
Lhc
Qcd
topic Higgs
Lhc
Qcd
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 Higgs bosons produced at hadron colliders. We use a formalism that uniformly treats both the small-qT and large-qT regions in QCD perturbation theory. At small qT (qT ≪ MH, MH being the mass of the Higgs boson), we implement an all-order resummation of logarithmically-enhanced contributions up to next-to-next-to-leading logarithmic accuracy. At large qT (qT ≳ MH), we use fixed-order perturbation theory up to next-to-leading order. The resummed and fixed-order approaches are consistently matched by avoiding double-counting in the intermediate-qT region. In this region, the introduction of unjustified higher-order terms is avoided by imposing unitarity constraints, so that the integral of the qT spectrum exactly reproduces the perturbative result for the total cross section up to next-to-next-to-leading order. Numerical results at the LHC are presented. These show that the main features of the qT distribution are quite stable with respect to perturbative QCD uncertainties.
Fil: Bozzi, G.. Università degli Studi di Firenze; Italia
Fil: Catani, S.. Cern - European Organization For Nuclear Research; Suiza
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: Grazzini, M.. Università degli Studi di Firenze; Italia. Cern - European Organization For Nuclear Research; Suiza
description We consider the transverse-momentum (qT) distribution of Higgs bosons produced at hadron colliders. We use a formalism that uniformly treats both the small-qT and large-qT regions in QCD perturbation theory. At small qT (qT ≪ MH, MH being the mass of the Higgs boson), we implement an all-order resummation of logarithmically-enhanced contributions up to next-to-next-to-leading logarithmic accuracy. At large qT (qT ≳ MH), we use fixed-order perturbation theory up to next-to-leading order. The resummed and fixed-order approaches are consistently matched by avoiding double-counting in the intermediate-qT region. In this region, the introduction of unjustified higher-order terms is avoided by imposing unitarity constraints, so that the integral of the qT spectrum exactly reproduces the perturbative result for the total cross section up to next-to-next-to-leading order. Numerical results at the LHC are presented. These show that the main features of the qT distribution are quite stable with respect to perturbative QCD uncertainties.
publishDate 2003
dc.date.none.fl_str_mv 2003-07
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/11336/75110
Bozzi, G.; Catani, S.; de Florian, Daniel Enrique; Grazzini, M.; The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory; Elsevier Science; Physics Letters B; 564; 1-2; 7-2003; 65-72
0370-2693
CONICET Digital
CONICET
url http://hdl.handle.net/11336/75110
identifier_str_mv Bozzi, G.; Catani, S.; de Florian, Daniel Enrique; Grazzini, M.; The qT spectrum of the Higgs boson at the LHC in QCD perturbation theory; Elsevier Science; Physics Letters B; 564; 1-2; 7-2003; 65-72
0370-2693
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/S0370-2693(03)00656-7
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0370269303006567
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 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 13.069144

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