Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach

Autores
Landau, Susana Judith; Mosquera, Mercedes Elisa; Vucetich, Hector
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Using the semi-analytic method proposed by Esmaizaldeh and coworkers we calculate the abundances of the light elements produced during primordial nucleosynthesis assuming that the gauge coupling constants of the fundamental interactions may vary.  We analyze the dependence of the nucleon masses, nuclear binding energies and cross sections involved in the calculation of the abundances with the fundamental constants assuming the chiral limit of QCD. We obtain the abundances of light elements as a function of the fundamental constants. Finally, using the observational data of d,  3He, 4He and 7Li we estimate constraints on the variation of the fundamental constants between the time of primordial nucleosynthesis and the present. All observational abundances and the WMAP estimate of the baryon density can be fitted to the theoretical predictions with varying coupling constants. The possible systematic errors in the observational data preclude stronger conclusions.
Fil: Landau, Susana Judith. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Mosquera, Mercedes Elisa. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Vucetich, Hector. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Materia
COSMOLOGICLA PARAMETERS
EARLY UNIVERSE
NUCLEAR REACTIONS
NUCLEOSYNTESIS ABUNDANCES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/73310
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical ApproachLandau, Susana JudithMosquera, Mercedes ElisaVucetich, HectorCOSMOLOGICLA PARAMETERSEARLY UNIVERSENUCLEAR REACTIONSNUCLEOSYNTESIS ABUNDANCEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Using the semi-analytic method proposed by Esmaizaldeh and coworkers we calculate the abundances of the light elements produced during primordial nucleosynthesis assuming that the gauge coupling constants of the fundamental interactions may vary.  We analyze the dependence of the nucleon masses, nuclear binding energies and cross sections involved in the calculation of the abundances with the fundamental constants assuming the chiral limit of QCD. We obtain the abundances of light elements as a function of the fundamental constants. Finally, using the observational data of d,  3He, 4He and 7Li we estimate constraints on the variation of the fundamental constants between the time of primordial nucleosynthesis and the present. All observational abundances and the WMAP estimate of the baryon density can be fitted to the theoretical predictions with varying coupling constants. The possible systematic errors in the observational data preclude stronger conclusions.Fil: Landau, Susana Judith. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Mosquera, Mercedes Elisa. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Vucetich, Hector. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaIOP Publishing2006-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/73310Landau, Susana Judith; Mosquera, Mercedes Elisa; Vucetich, Hector; Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach; IOP Publishing; Astrophysical Journal; 637; 1; 1-2006; 38-520004-637XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1086/431417info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:59:04Zoai:ri.conicet.gov.ar:11336/73310instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:59:05.113CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach
title Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach
spellingShingle Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach
Landau, Susana Judith
COSMOLOGICLA PARAMETERS
EARLY UNIVERSE
NUCLEAR REACTIONS
NUCLEOSYNTESIS ABUNDANCES
title_short Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach
title_full Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach
title_fullStr Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach
title_full_unstemmed Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach
title_sort Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach
dc.creator.none.fl_str_mv Landau, Susana Judith
Mosquera, Mercedes Elisa
Vucetich, Hector
author Landau, Susana Judith
author_facet Landau, Susana Judith
Mosquera, Mercedes Elisa
Vucetich, Hector
author_role author
author2 Mosquera, Mercedes Elisa
Vucetich, Hector
author2_role author
author
dc.subject.none.fl_str_mv COSMOLOGICLA PARAMETERS
EARLY UNIVERSE
NUCLEAR REACTIONS
NUCLEOSYNTESIS ABUNDANCES
topic COSMOLOGICLA PARAMETERS
EARLY UNIVERSE
NUCLEAR REACTIONS
NUCLEOSYNTESIS ABUNDANCES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Using the semi-analytic method proposed by Esmaizaldeh and coworkers we calculate the abundances of the light elements produced during primordial nucleosynthesis assuming that the gauge coupling constants of the fundamental interactions may vary.  We analyze the dependence of the nucleon masses, nuclear binding energies and cross sections involved in the calculation of the abundances with the fundamental constants assuming the chiral limit of QCD. We obtain the abundances of light elements as a function of the fundamental constants. Finally, using the observational data of d,  3He, 4He and 7Li we estimate constraints on the variation of the fundamental constants between the time of primordial nucleosynthesis and the present. All observational abundances and the WMAP estimate of the baryon density can be fitted to the theoretical predictions with varying coupling constants. The possible systematic errors in the observational data preclude stronger conclusions.
Fil: Landau, Susana Judith. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Mosquera, Mercedes Elisa. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Vucetich, Hector. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
description Using the semi-analytic method proposed by Esmaizaldeh and coworkers we calculate the abundances of the light elements produced during primordial nucleosynthesis assuming that the gauge coupling constants of the fundamental interactions may vary.  We analyze the dependence of the nucleon masses, nuclear binding energies and cross sections involved in the calculation of the abundances with the fundamental constants assuming the chiral limit of QCD. We obtain the abundances of light elements as a function of the fundamental constants. Finally, using the observational data of d,  3He, 4He and 7Li we estimate constraints on the variation of the fundamental constants between the time of primordial nucleosynthesis and the present. All observational abundances and the WMAP estimate of the baryon density can be fitted to the theoretical predictions with varying coupling constants. The possible systematic errors in the observational data preclude stronger conclusions.
publishDate 2006
dc.date.none.fl_str_mv 2006-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/73310
Landau, Susana Judith; Mosquera, Mercedes Elisa; Vucetich, Hector; Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach; IOP Publishing; Astrophysical Journal; 637; 1; 1-2006; 38-52
0004-637X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/73310
identifier_str_mv Landau, Susana Judith; Mosquera, Mercedes Elisa; Vucetich, Hector; Primordial Nucleosynthesis with Varying Fundamental Constants: A Semianalytical Approach; IOP Publishing; Astrophysical Journal; 637; 1; 1-2006; 38-52
0004-637X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1086/431417
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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