Custodial symmetry and extensions of the standard model

Detalhes bibliográficos
Autor(a) principal: Montero, J. C. [UNESP]
Data de Publicação: 2006
Outros Autores: Pleitez, V. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1103/PhysRevD.74.115014
http://hdl.handle.net/11449/224849
Resumo: We show that the extension of the approximate custodial SU(2)L+R global symmetry to all the Yukawa interactions of the standard model Lagrangian implies the introduction of sterile right-handed neutrinos and the seesaw mechanism in this sector. In this framework, the observed quark and lepton masses may be interpreted as an effect of physics beyond the standard model. The mechanism used for breaking this symmetry in the Yukawa sector could be different from the one at work in the vector boson sector. We give three model independent examples of these mechanisms. © 2006 The American Physical Society.
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spelling Custodial symmetry and extensions of the standard modelWe show that the extension of the approximate custodial SU(2)L+R global symmetry to all the Yukawa interactions of the standard model Lagrangian implies the introduction of sterile right-handed neutrinos and the seesaw mechanism in this sector. In this framework, the observed quark and lepton masses may be interpreted as an effect of physics beyond the standard model. The mechanism used for breaking this symmetry in the Yukawa sector could be different from the one at work in the vector boson sector. We give three model independent examples of these mechanisms. © 2006 The American Physical Society.Instituto de Física Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-000, São Paulo, SPInstituto de Física Teórica Universidade Estadual Paulista, Rua Pamplona 145, 01405-000, São Paulo, SPUniversidade Estadual Paulista (UNESP)Montero, J. C. [UNESP]Pleitez, V. [UNESP]2022-04-28T20:14:14Z2022-04-28T20:14:14Z2006-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevD.74.115014Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 74, n. 11, 2006.1550-79981550-2368http://hdl.handle.net/11449/22484910.1103/PhysRevD.74.1150142-s2.0-33845736912Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D - Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccess2022-04-28T20:14:14Zoai:repositorio.unesp.br:11449/224849Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T20:14:14Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Custodial symmetry and extensions of the standard model
title Custodial symmetry and extensions of the standard model
spellingShingle Custodial symmetry and extensions of the standard model
Montero, J. C. [UNESP]
title_short Custodial symmetry and extensions of the standard model
title_full Custodial symmetry and extensions of the standard model
title_fullStr Custodial symmetry and extensions of the standard model
title_full_unstemmed Custodial symmetry and extensions of the standard model
title_sort Custodial symmetry and extensions of the standard model
author Montero, J. C. [UNESP]
author_facet Montero, J. C. [UNESP]
Pleitez, V. [UNESP]
author_role author
author2 Pleitez, V. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.contributor.author.fl_str_mv Montero, J. C. [UNESP]
Pleitez, V. [UNESP]
description We show that the extension of the approximate custodial SU(2)L+R global symmetry to all the Yukawa interactions of the standard model Lagrangian implies the introduction of sterile right-handed neutrinos and the seesaw mechanism in this sector. In this framework, the observed quark and lepton masses may be interpreted as an effect of physics beyond the standard model. The mechanism used for breaking this symmetry in the Yukawa sector could be different from the one at work in the vector boson sector. We give three model independent examples of these mechanisms. © 2006 The American Physical Society.
publishDate 2006
dc.date.none.fl_str_mv 2006-12-01
2022-04-28T20:14:14Z
2022-04-28T20:14:14Z
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://dx.doi.org/10.1103/PhysRevD.74.115014
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 74, n. 11, 2006.
1550-7998
1550-2368
http://hdl.handle.net/11449/224849
10.1103/PhysRevD.74.115014
2-s2.0-33845736912
url http://dx.doi.org/10.1103/PhysRevD.74.115014
http://hdl.handle.net/11449/224849
identifier_str_mv Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 74, n. 11, 2006.
1550-7998
1550-2368
10.1103/PhysRevD.74.115014
2-s2.0-33845736912
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physical Review D - Particles, Fields, Gravitation and Cosmology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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