Accidental symmetries and massless quarks in the economical 3-3-1 model
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevD.91.037302 http://hdl.handle.net/11449/227933 |
Resumo: | In the framework of a 3-3-1 model with a minimal scalar sector, known as the economical 3-3-1 model, we study its capabilities of generating realistic quark masses. After a detailed study of the symmetries of the model, before and after the spontaneous symmetry breaking, we find a remaining axial symmetry that prevents some quarks from gaining mass at all orders in perturbation theory. Since this accidental symmetry is anomalous, we also consider briefly the possibility of generating their masses for nonperturbative effects. However, we find that nonperturbative effects are not enough to generate the measured masses for the three massless quarks. Hence, these results imply that the economical 3-3-1 model is not a realistic description of the electroweak interaction. |
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Accidental symmetries and massless quarks in the economical 3-3-1 modelIn the framework of a 3-3-1 model with a minimal scalar sector, known as the economical 3-3-1 model, we study its capabilities of generating realistic quark masses. After a detailed study of the symmetries of the model, before and after the spontaneous symmetry breaking, we find a remaining axial symmetry that prevents some quarks from gaining mass at all orders in perturbation theory. Since this accidental symmetry is anomalous, we also consider briefly the possibility of generating their masses for nonperturbative effects. However, we find that nonperturbative effects are not enough to generate the measured masses for the three massless quarks. Hence, these results imply that the economical 3-3-1 model is not a realistic description of the electroweak interaction.Instituto de Física Teórica, Universidade Estadual Paulista, R. Dr. Bento Teobaldo Ferraz 271Argonne National Laboratory, 9700 S. Cass AvenueInstituto de Física Teórica, Universidade Estadual Paulista, R. Dr. Bento Teobaldo Ferraz 271Universidade Estadual Paulista (UNESP)Argonne National LaboratoryMontero, J. C. [UNESP]Sánchez-Vega, B. L.2022-04-29T07:25:52Z2022-04-29T07:25:52Z2015-02-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevD.91.037302Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 91, n. 3, 2015.1550-23681550-7998http://hdl.handle.net/11449/22793310.1103/PhysRevD.91.0373022-s2.0-84923343851Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D - Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccess2022-04-29T07:25:52Zoai:repositorio.unesp.br:11449/227933Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T07:25:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Accidental symmetries and massless quarks in the economical 3-3-1 model |
title |
Accidental symmetries and massless quarks in the economical 3-3-1 model |
spellingShingle |
Accidental symmetries and massless quarks in the economical 3-3-1 model Montero, J. C. [UNESP] |
title_short |
Accidental symmetries and massless quarks in the economical 3-3-1 model |
title_full |
Accidental symmetries and massless quarks in the economical 3-3-1 model |
title_fullStr |
Accidental symmetries and massless quarks in the economical 3-3-1 model |
title_full_unstemmed |
Accidental symmetries and massless quarks in the economical 3-3-1 model |
title_sort |
Accidental symmetries and massless quarks in the economical 3-3-1 model |
author |
Montero, J. C. [UNESP] |
author_facet |
Montero, J. C. [UNESP] Sánchez-Vega, B. L. |
author_role |
author |
author2 |
Sánchez-Vega, B. L. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Argonne National Laboratory |
dc.contributor.author.fl_str_mv |
Montero, J. C. [UNESP] Sánchez-Vega, B. L. |
description |
In the framework of a 3-3-1 model with a minimal scalar sector, known as the economical 3-3-1 model, we study its capabilities of generating realistic quark masses. After a detailed study of the symmetries of the model, before and after the spontaneous symmetry breaking, we find a remaining axial symmetry that prevents some quarks from gaining mass at all orders in perturbation theory. Since this accidental symmetry is anomalous, we also consider briefly the possibility of generating their masses for nonperturbative effects. However, we find that nonperturbative effects are not enough to generate the measured masses for the three massless quarks. Hence, these results imply that the economical 3-3-1 model is not a realistic description of the electroweak interaction. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-02-17 2022-04-29T07:25:52Z 2022-04-29T07:25:52Z |
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.91.037302 Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 91, n. 3, 2015. 1550-2368 1550-7998 http://hdl.handle.net/11449/227933 10.1103/PhysRevD.91.037302 2-s2.0-84923343851 |
url |
http://dx.doi.org/10.1103/PhysRevD.91.037302 http://hdl.handle.net/11449/227933 |
identifier_str_mv |
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 91, n. 3, 2015. 1550-2368 1550-7998 10.1103/PhysRevD.91.037302 2-s2.0-84923343851 |
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_ |
1803650377276456960 |