Custodial symmetry and extensions of the standard model
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | |
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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Repositório Institucional da UNESP |
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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:29462024-08-05T21:35:52.603080Repositório 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 |
|
_version_ |
1808129340075933696 |