Constraining multi-Higgs flavour models
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.21/4973 |
Resumo: | To study a flavour model with a non-minimal Higgs sector one must first define the symmetries of the fields; then identify what types of vacua exist and how they may break the symmetries; and finally determine whether the remnant symmetries are compatible with the experimental data. Here we address all these issues in the context of flavour models with any number of Higgs doublets. We stress the importance of analysing the Higgs vacuum expectation values that are pseudo-invariant under the generators of all subgroups. It is shown that the only way of obtaining a physical CKM mixing matrix and, simultaneously, non-degenerate and non-zero quark masses is requiring the vacuum expectation values of the Higgs fields to break completely the full flavour group, except possibly for some symmetry belonging to baryon number. The application of this technique to some illustrative examples, such as the flavour groups Delta (27), A(4) and S-3, is also presented. |
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Constraining multi-Higgs flavour modelsDiscrete SymmetriesCP ViolationAnglesMassesTo study a flavour model with a non-minimal Higgs sector one must first define the symmetries of the fields; then identify what types of vacua exist and how they may break the symmetries; and finally determine whether the remnant symmetries are compatible with the experimental data. Here we address all these issues in the context of flavour models with any number of Higgs doublets. We stress the importance of analysing the Higgs vacuum expectation values that are pseudo-invariant under the generators of all subgroups. It is shown that the only way of obtaining a physical CKM mixing matrix and, simultaneously, non-degenerate and non-zero quark masses is requiring the vacuum expectation values of the Higgs fields to break completely the full flavour group, except possibly for some symmetry belonging to baryon number. The application of this technique to some illustrative examples, such as the flavour groups Delta (27), A(4) and S-3, is also presented.SpringerRCIPLFelipe, Ricardo GonzalezIvanov, I. P.Nishi, C. C.Seródio, HugoSilva, João Paulo2015-08-25T09:41:26Z2014-072014-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/4973engGONZÁLEZ FELIPE, Ricardo Jorge; [et al] – Constraining multi-Higgs flavour models. European Physical Journal C. ISSN: 1434-6044. Vol. 74, nr. 7 (2014), Art. nr. 29531434-604410.1140/epjc/s10052-014-2953-9metadata only accessinfo: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:RCAAP2023-08-03T09:47:46Zoai:repositorio.ipl.pt:10400.21/4973Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:14:19.622769Repositório 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 |
Constraining multi-Higgs flavour models |
title |
Constraining multi-Higgs flavour models |
spellingShingle |
Constraining multi-Higgs flavour models Felipe, Ricardo Gonzalez Discrete Symmetries CP Violation Angles Masses |
title_short |
Constraining multi-Higgs flavour models |
title_full |
Constraining multi-Higgs flavour models |
title_fullStr |
Constraining multi-Higgs flavour models |
title_full_unstemmed |
Constraining multi-Higgs flavour models |
title_sort |
Constraining multi-Higgs flavour models |
author |
Felipe, Ricardo Gonzalez |
author_facet |
Felipe, Ricardo Gonzalez Ivanov, I. P. Nishi, C. C. Seródio, Hugo Silva, João Paulo |
author_role |
author |
author2 |
Ivanov, I. P. Nishi, C. C. Seródio, Hugo Silva, João Paulo |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Felipe, Ricardo Gonzalez Ivanov, I. P. Nishi, C. C. Seródio, Hugo Silva, João Paulo |
dc.subject.por.fl_str_mv |
Discrete Symmetries CP Violation Angles Masses |
topic |
Discrete Symmetries CP Violation Angles Masses |
description |
To study a flavour model with a non-minimal Higgs sector one must first define the symmetries of the fields; then identify what types of vacua exist and how they may break the symmetries; and finally determine whether the remnant symmetries are compatible with the experimental data. Here we address all these issues in the context of flavour models with any number of Higgs doublets. We stress the importance of analysing the Higgs vacuum expectation values that are pseudo-invariant under the generators of all subgroups. It is shown that the only way of obtaining a physical CKM mixing matrix and, simultaneously, non-degenerate and non-zero quark masses is requiring the vacuum expectation values of the Higgs fields to break completely the full flavour group, except possibly for some symmetry belonging to baryon number. The application of this technique to some illustrative examples, such as the flavour groups Delta (27), A(4) and S-3, is also presented. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07 2014-07-01T00:00:00Z 2015-08-25T09:41:26Z |
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/10400.21/4973 |
url |
http://hdl.handle.net/10400.21/4973 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
GONZÁLEZ FELIPE, Ricardo Jorge; [et al] – Constraining multi-Higgs flavour models. European Physical Journal C. ISSN: 1434-6044. Vol. 74, nr. 7 (2014), Art. nr. 2953 1434-6044 10.1140/epjc/s10052-014-2953-9 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Springer |
publisher.none.fl_str_mv |
Springer |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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