Time variation of fundamental constants in nonstandard cosmological models

Autores
Mosquera, Mercedes Elisa; Civitarese, Enrique Osvaldo
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work we have studied the lithium problem in nonstandard cosmological models. In particular, by using the public code ALTERBBN, we have included in the computation of the primordial light nuclei abundances, the effects of the inclusion of dark energy and dark entropy, along with the variation of the fine structure constant and the Higgs vacuum expectation value. In order to set constrains on the variation of the fundamental constants we have compared our theoretical results with the available observational data. We have found that the lithium abundance is reduced for not-null variation at the 3σ-level of both constants.
Facultad de Ciencias Astronómicas y Geofísicas
Facultad de Ciencias Exactas
Materia
Física
Nonstandard cosmological models
Lithium
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/118368
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/118368
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Time variation of fundamental constants in nonstandard cosmological modelsMosquera, Mercedes ElisaCivitarese, Enrique OsvaldoFísicaNonstandard cosmological modelsLithiumIn this work we have studied the lithium problem in nonstandard cosmological models. In particular, by using the public code ALTERBBN, we have included in the computation of the primordial light nuclei abundances, the effects of the inclusion of dark energy and dark entropy, along with the variation of the fine structure constant and the Higgs vacuum expectation value. In order to set constrains on the variation of the fundamental constants we have compared our theoretical results with the available observational data. We have found that the lithium abundance is reduced for not-null variation at the 3σ-level of both constants.Facultad de Ciencias Astronómicas y GeofísicasFacultad de Ciencias Exactas2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/118368enginfo:eu-repo/semantics/altIdentifier/issn/2469-9985info:eu-repo/semantics/altIdentifier/issn/2469-9993info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.96.045802info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:27:50Zoai:sedici.unlp.edu.ar:10915/118368Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:27:50.795SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Time variation of fundamental constants in nonstandard cosmological models
title Time variation of fundamental constants in nonstandard cosmological models
spellingShingle Time variation of fundamental constants in nonstandard cosmological models
Mosquera, Mercedes Elisa
Física
Nonstandard cosmological models
Lithium
title_short Time variation of fundamental constants in nonstandard cosmological models
title_full Time variation of fundamental constants in nonstandard cosmological models
title_fullStr Time variation of fundamental constants in nonstandard cosmological models
title_full_unstemmed Time variation of fundamental constants in nonstandard cosmological models
title_sort Time variation of fundamental constants in nonstandard cosmological models
dc.creator.none.fl_str_mv Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author Mosquera, Mercedes Elisa
author_facet Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author_role author
author2 Civitarese, Enrique Osvaldo
author2_role author
dc.subject.none.fl_str_mv Física
Nonstandard cosmological models
Lithium
topic Física
Nonstandard cosmological models
Lithium
dc.description.none.fl_txt_mv In this work we have studied the lithium problem in nonstandard cosmological models. In particular, by using the public code ALTERBBN, we have included in the computation of the primordial light nuclei abundances, the effects of the inclusion of dark energy and dark entropy, along with the variation of the fine structure constant and the Higgs vacuum expectation value. In order to set constrains on the variation of the fundamental constants we have compared our theoretical results with the available observational data. We have found that the lithium abundance is reduced for not-null variation at the 3σ-level of both constants.
Facultad de Ciencias Astronómicas y Geofísicas
Facultad de Ciencias Exactas
description In this work we have studied the lithium problem in nonstandard cosmological models. In particular, by using the public code ALTERBBN, we have included in the computation of the primordial light nuclei abundances, the effects of the inclusion of dark energy and dark entropy, along with the variation of the fine structure constant and the Higgs vacuum expectation value. In order to set constrains on the variation of the fundamental constants we have compared our theoretical results with the available observational data. We have found that the lithium abundance is reduced for not-null variation at the 3σ-level of both constants.
publishDate 2017
dc.date.none.fl_str_mv 2017
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/118368
url http://sedici.unlp.edu.ar/handle/10915/118368
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/2469-9985
info:eu-repo/semantics/altIdentifier/issn/2469-9993
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevC.96.045802
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.070432

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