Pseudoscalar couplings in t t H production at NLO+NLL accuracy

Detalhes bibliográficos
Autor(a) principal: Broggio, Alessandro
Data de Publicação: 2017
Outros Autores: Ferroglia, Andrea, Fiolhais, Miguel C. N., Onofre, A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/54889
Resumo: We study the production of a Higgs boson in association to a top-antitop pair at the Large Hadron Collider (LHC). We show how precise predictions for the differential distributions with respect to the transverse momentum of the Higgs boson, to the invariant mass of the top-antitop-Higgs system and to the invariant mass of the top-antitop pair can provide useful information on the possible presence of a pseudoscalar component in the coupling of the top quark with the Higgs boson. We evaluate the production of a top-antitop pair and a Higgs boson to next-to-leading order in fixed order perturbation theory and we carry out the resummation of soft emission corrections to next-to-leading-logarithmic accuracy for the LHC operating at a center of mass energy of 13 TeV. We discuss how the shape of these distributions can be employed experimentally, making a physics case for the kinematic reconstruction of dilepton channels.
id RCAP_8952bd9645c96115a69ffaaf193975aa
oai_identifier_str oai:repositorium.sdum.uminho.pt:1822/54889
network_acronym_str RCAP
network_name_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository_id_str 7160
spelling Pseudoscalar couplings in t t H production at NLO+NLL accuracyCiências Naturais::Ciências FísicasScience & TechnologyWe study the production of a Higgs boson in association to a top-antitop pair at the Large Hadron Collider (LHC). We show how precise predictions for the differential distributions with respect to the transverse momentum of the Higgs boson, to the invariant mass of the top-antitop-Higgs system and to the invariant mass of the top-antitop pair can provide useful information on the possible presence of a pseudoscalar component in the coupling of the top quark with the Higgs boson. We evaluate the production of a top-antitop pair and a Higgs boson to next-to-leading order in fixed order perturbation theory and we carry out the resummation of soft emission corrections to next-to-leading-logarithmic accuracy for the LHC operating at a center of mass energy of 13 TeV. We discuss how the shape of these distributions can be employed experimentally, making a physics case for the kinematic reconstruction of dilepton channels.We thank R. Frederix, Ossola, and N. Castro for useful discussions and for reading the manuscript. The in-house Monte Carlo code, which we developed and employed to evaluate the (differential) cross sections presented in this paper, was run on the computer cluster of the Center for Theoretical Physics at the Physics Department of New York City College of Technology. This work was supported by the CUNY Summer Collaborative Research Opportunity Grant No. 80232-20 17 and PSC-CUNY Grants No. 60061-00 48 and No. 0185-00 48. The work of A. F. is supported in part by the National Science Foundation under Grant No. PHY-1417354.info:eu-repo/semantics/publishedVersionAmerican Physical SocietyUniversidade do MinhoBroggio, AlessandroFerroglia, AndreaFiolhais, Miguel C. N.Onofre, A.20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/54889engBroggio, A., Ferroglia, A., Fiolhais, M. C. N., & Onofre, A. (2017). Pseudoscalar couplings in t t H production at NLO+NLL accuracy. [Article]. Physical Review D, 96(7). doi: 10.1103/PhysRevD.96.0730052470-00102470-002910.1103/PhysRevD.96.073005https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.073005info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:47:14Zoai:repositorium.sdum.uminho.pt:1822/54889Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:45:20.246281Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Pseudoscalar couplings in t t H production at NLO+NLL accuracy
title Pseudoscalar couplings in t t H production at NLO+NLL accuracy
spellingShingle Pseudoscalar couplings in t t H production at NLO+NLL accuracy
Broggio, Alessandro
Ciências Naturais::Ciências Físicas
Science & Technology
title_short Pseudoscalar couplings in t t H production at NLO+NLL accuracy
title_full Pseudoscalar couplings in t t H production at NLO+NLL accuracy
title_fullStr Pseudoscalar couplings in t t H production at NLO+NLL accuracy
title_full_unstemmed Pseudoscalar couplings in t t H production at NLO+NLL accuracy
title_sort Pseudoscalar couplings in t t H production at NLO+NLL accuracy
author Broggio, Alessandro
author_facet Broggio, Alessandro
Ferroglia, Andrea
Fiolhais, Miguel C. N.
Onofre, A.
author_role author
author2 Ferroglia, Andrea
Fiolhais, Miguel C. N.
Onofre, A.
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Broggio, Alessandro
Ferroglia, Andrea
Fiolhais, Miguel C. N.
Onofre, A.
dc.subject.por.fl_str_mv Ciências Naturais::Ciências Físicas
Science & Technology
topic Ciências Naturais::Ciências Físicas
Science & Technology
description We study the production of a Higgs boson in association to a top-antitop pair at the Large Hadron Collider (LHC). We show how precise predictions for the differential distributions with respect to the transverse momentum of the Higgs boson, to the invariant mass of the top-antitop-Higgs system and to the invariant mass of the top-antitop pair can provide useful information on the possible presence of a pseudoscalar component in the coupling of the top quark with the Higgs boson. We evaluate the production of a top-antitop pair and a Higgs boson to next-to-leading order in fixed order perturbation theory and we carry out the resummation of soft emission corrections to next-to-leading-logarithmic accuracy for the LHC operating at a center of mass energy of 13 TeV. We discuss how the shape of these distributions can be employed experimentally, making a physics case for the kinematic reconstruction of dilepton channels.
publishDate 2017
dc.date.none.fl_str_mv 2017
2017-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/54889
url http://hdl.handle.net/1822/54889
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Broggio, A., Ferroglia, A., Fiolhais, M. C. N., & Onofre, A. (2017). Pseudoscalar couplings in t t H production at NLO+NLL accuracy. [Article]. Physical Review D, 96(7). doi: 10.1103/PhysRevD.96.073005
2470-0010
2470-0029
10.1103/PhysRevD.96.073005
https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.073005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
_version_ 1799133017533317120

Registros relacionados