Complex scalar dark matter in a B - L model
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1103/PhysRevD.90.055022 http://hdl.handle.net/11449/227869 |
Resumo: | In this work, we implement a complex scalar dark matter (DM) candidate in a U(1)B-L gauge extension of the Standard Model. The model contains three right-handed neutrinos with different quantum numbers and a rich scalar sector, with extra doublets and singlets. In principle, these extra scalars can have vacuum expectation values (VΦ and Vφ for the extra doublets and singlets, respectively) belonging to different energy scales. In the context of ζ≡VΦVφ1, which allows one to obtain naturally light active neutrino masses and mixing compatible with neutrino experiments, the DM candidate arises by imposing a Z2 symmetry on a given complex singlet, φ2, in order to make it stable. After doing a study of the scalar potential and the gauge sector, we obtain all the DM-dominant processes concerning the relic abundance and direct detection. Then, for a representative set of parameters, we find that a complex DM with mass around 200 GeV, for example, is compatible with the current experimental constraints without resorting to resonances. However, additional compatible solutions with heavier masses can be found in vicinities of resonances. Finally, we address the issue of having a light CP-odd scalar in the model showing that it is safe concerning the Higgs and the Zμ-boson invisible decay widths, and also astrophysical constraints regarding energy loss in stars. |
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Complex scalar dark matter in a B - L modelIn this work, we implement a complex scalar dark matter (DM) candidate in a U(1)B-L gauge extension of the Standard Model. The model contains three right-handed neutrinos with different quantum numbers and a rich scalar sector, with extra doublets and singlets. In principle, these extra scalars can have vacuum expectation values (VΦ and Vφ for the extra doublets and singlets, respectively) belonging to different energy scales. In the context of ζ≡VΦVφ1, which allows one to obtain naturally light active neutrino masses and mixing compatible with neutrino experiments, the DM candidate arises by imposing a Z2 symmetry on a given complex singlet, φ2, in order to make it stable. After doing a study of the scalar potential and the gauge sector, we obtain all the DM-dominant processes concerning the relic abundance and direct detection. Then, for a representative set of parameters, we find that a complex DM with mass around 200 GeV, for example, is compatible with the current experimental constraints without resorting to resonances. However, additional compatible solutions with heavier masses can be found in vicinities of resonances. Finally, we address the issue of having a light CP-odd scalar in the model showing that it is safe concerning the Higgs and the Zμ-boson invisible decay widths, and also astrophysical constraints regarding energy loss in stars.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)HEP Division Argonne National LabInstituto de Física Teórica Universidade Estadual Paulista, R. Dr. Bento Teobaldo Ferraz 271Instituto de Física Teórica Universidade Estadual Paulista, R. Dr. Bento Teobaldo Ferraz 271CAPES: 2264-13-7Argonne National LabUniversidade Estadual Paulista (UNESP)Sánchez-Vega, B. L.Montero, J. C. [UNESP]Schmitz, E. R. [UNESP]2022-04-29T07:21:44Z2022-04-29T07:21:44Z2014-09-22info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1103/PhysRevD.90.055022Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 90, n. 5, 2014.1550-23681550-7998http://hdl.handle.net/11449/22786910.1103/PhysRevD.90.0550222-s2.0-84907587197Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysical Review D - Particles, Fields, Gravitation and Cosmologyinfo:eu-repo/semantics/openAccess2022-04-29T07:21:44Zoai:repositorio.unesp.br:11449/227869Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T18:49:28.562172Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Complex scalar dark matter in a B - L model |
title |
Complex scalar dark matter in a B - L model |
spellingShingle |
Complex scalar dark matter in a B - L model Sánchez-Vega, B. L. |
title_short |
Complex scalar dark matter in a B - L model |
title_full |
Complex scalar dark matter in a B - L model |
title_fullStr |
Complex scalar dark matter in a B - L model |
title_full_unstemmed |
Complex scalar dark matter in a B - L model |
title_sort |
Complex scalar dark matter in a B - L model |
author |
Sánchez-Vega, B. L. |
author_facet |
Sánchez-Vega, B. L. Montero, J. C. [UNESP] Schmitz, E. R. [UNESP] |
author_role |
author |
author2 |
Montero, J. C. [UNESP] Schmitz, E. R. [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Argonne National Lab Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Sánchez-Vega, B. L. Montero, J. C. [UNESP] Schmitz, E. R. [UNESP] |
description |
In this work, we implement a complex scalar dark matter (DM) candidate in a U(1)B-L gauge extension of the Standard Model. The model contains three right-handed neutrinos with different quantum numbers and a rich scalar sector, with extra doublets and singlets. In principle, these extra scalars can have vacuum expectation values (VΦ and Vφ for the extra doublets and singlets, respectively) belonging to different energy scales. In the context of ζ≡VΦVφ1, which allows one to obtain naturally light active neutrino masses and mixing compatible with neutrino experiments, the DM candidate arises by imposing a Z2 symmetry on a given complex singlet, φ2, in order to make it stable. After doing a study of the scalar potential and the gauge sector, we obtain all the DM-dominant processes concerning the relic abundance and direct detection. Then, for a representative set of parameters, we find that a complex DM with mass around 200 GeV, for example, is compatible with the current experimental constraints without resorting to resonances. However, additional compatible solutions with heavier masses can be found in vicinities of resonances. Finally, we address the issue of having a light CP-odd scalar in the model showing that it is safe concerning the Higgs and the Zμ-boson invisible decay widths, and also astrophysical constraints regarding energy loss in stars. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-09-22 2022-04-29T07:21:44Z 2022-04-29T07:21:44Z |
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.90.055022 Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 90, n. 5, 2014. 1550-2368 1550-7998 http://hdl.handle.net/11449/227869 10.1103/PhysRevD.90.055022 2-s2.0-84907587197 |
url |
http://dx.doi.org/10.1103/PhysRevD.90.055022 http://hdl.handle.net/11449/227869 |
identifier_str_mv |
Physical Review D - Particles, Fields, Gravitation and Cosmology, v. 90, n. 5, 2014. 1550-2368 1550-7998 10.1103/PhysRevD.90.055022 2-s2.0-84907587197 |
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_ |
1808128985498910720 |