P -even, C P-violating signals in scalar-mediated processes

Detalhes bibliográficos
Autor(a) principal: Haber, Howard E.
Data de Publicação: 2022
Outros Autores: Keus, Venus, Santos, Rui
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/15545
Resumo: Most studies of Higgs sector CP violation focus on the detection of CP-violating neutral Higgs-fermion Yukawa couplings, which yield P-odd, CP-violating phenomena. There is some literature on purely bosonic signatures of Higgs sector CP violation, where the simultaneous observation of three processes (suitably chosen) constitutes a signal of P-even CP violation. However, in the examples previously analyzed, some of the processes are strongly suppressed in the approximate Higgs alignment limit (corresponding to the existence of a Standard Model-like Higgs boson as suggested by LHC data), in which case the proposed CP-violating signals are difficult to observe in practice. In this paper, we extend the existing literature by examining processes that do not vanish in the Higgs alignment limit and whose simultaneous observation would provide unambiguous evidence for scalar-mediated P-even CP violation. We assess the discovery potential of such signals at various future multi-TeV lepton (and γγ) colliders. The potential for detecting loop-induced P-even, CP-violating phenomena is also considered.
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spelling P -even, C P-violating signals in scalar-mediated processesBosonic interactionsPhysical mass eigenstatesMost studies of Higgs sector CP violation focus on the detection of CP-violating neutral Higgs-fermion Yukawa couplings, which yield P-odd, CP-violating phenomena. There is some literature on purely bosonic signatures of Higgs sector CP violation, where the simultaneous observation of three processes (suitably chosen) constitutes a signal of P-even CP violation. However, in the examples previously analyzed, some of the processes are strongly suppressed in the approximate Higgs alignment limit (corresponding to the existence of a Standard Model-like Higgs boson as suggested by LHC data), in which case the proposed CP-violating signals are difficult to observe in practice. In this paper, we extend the existing literature by examining processes that do not vanish in the Higgs alignment limit and whose simultaneous observation would provide unambiguous evidence for scalar-mediated P-even CP violation. We assess the discovery potential of such signals at various future multi-TeV lepton (and γγ) colliders. The potential for detecting loop-induced P-even, CP-violating phenomena is also considered.American Physical SocietyRCIPLHaber, Howard E.Keus, VenusSantos, Rui2023-02-10T15:18:10Z2022-112022-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/15545engH. E. Haber, V. Keus, R. Santos, P-even, CP-violating signals in scalar-mediated processes. Publicado: Phys.Rev.D 106 9 (2022) 095038, DOI: 10.11032470-001010.1103/PhysRevD.106.095038info: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:RCAAP2023-08-03T10:13:12Zoai:repositorio.ipl.pt:10400.21/15545Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:23:11.924732Repositório 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 P -even, C P-violating signals in scalar-mediated processes
title P -even, C P-violating signals in scalar-mediated processes
spellingShingle P -even, C P-violating signals in scalar-mediated processes
Haber, Howard E.
Bosonic interactions
Physical mass eigenstates
title_short P -even, C P-violating signals in scalar-mediated processes
title_full P -even, C P-violating signals in scalar-mediated processes
title_fullStr P -even, C P-violating signals in scalar-mediated processes
title_full_unstemmed P -even, C P-violating signals in scalar-mediated processes
title_sort P -even, C P-violating signals in scalar-mediated processes
author Haber, Howard E.
author_facet Haber, Howard E.
Keus, Venus
Santos, Rui
author_role author
author2 Keus, Venus
Santos, Rui
author2_role author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Haber, Howard E.
Keus, Venus
Santos, Rui
dc.subject.por.fl_str_mv Bosonic interactions
Physical mass eigenstates
topic Bosonic interactions
Physical mass eigenstates
description Most studies of Higgs sector CP violation focus on the detection of CP-violating neutral Higgs-fermion Yukawa couplings, which yield P-odd, CP-violating phenomena. There is some literature on purely bosonic signatures of Higgs sector CP violation, where the simultaneous observation of three processes (suitably chosen) constitutes a signal of P-even CP violation. However, in the examples previously analyzed, some of the processes are strongly suppressed in the approximate Higgs alignment limit (corresponding to the existence of a Standard Model-like Higgs boson as suggested by LHC data), in which case the proposed CP-violating signals are difficult to observe in practice. In this paper, we extend the existing literature by examining processes that do not vanish in the Higgs alignment limit and whose simultaneous observation would provide unambiguous evidence for scalar-mediated P-even CP violation. We assess the discovery potential of such signals at various future multi-TeV lepton (and γγ) colliders. The potential for detecting loop-induced P-even, CP-violating phenomena is also considered.
publishDate 2022
dc.date.none.fl_str_mv 2022-11
2022-11-01T00:00:00Z
2023-02-10T15:18:10Z
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/10400.21/15545
url http://hdl.handle.net/10400.21/15545
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv H. E. Haber, V. Keus, R. Santos, P-even, CP-violating signals in scalar-mediated processes. Publicado: Phys.Rev.D 106 9 (2022) 095038, DOI: 10.1103
2470-0010
10.1103/PhysRevD.106.095038
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)
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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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
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