Effects of neutrino mixing upon electron fraction in core collapse supernovae

Autores
Sáez, María Manuela; Mosquera, Mercedes Elisa; Civitarese, Enrique Osvaldo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The inclusion of massive neutrinos affects the cross sections involved in the formation of heavy nuclei, modifying their abundances.Rapid neutron capture processes (r-process) are often associated with explosive events such as core-collapse supernovae. In this work we study the effects of active and sterile neutrino oscillations and interactions, upon the calculation of neutrino fluxes, the baryonic density and the electron fraction of the material. We have considered two different initial distribution functions of the neutrinos and different combinations of mixing parameters (including $heta_{34}e0$). We use the formalism of density matrices for the calculations and included the effects of neutrino oscillations, interactions with matter and self-neutrino interactions. We found that the interactions of the neutrinos with matter and with themselves change the electron fraction, affecting the onset of the r-process.
Fil: Sáez, María Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Mosquera, Mercedes Elisa. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Área Física Teórica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Civitarese, Enrique Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
Materia
Astroparticle Physics
Neutrinos
Nuclear Reactions
Nucleosynthesis
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:11336/86312
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effects of neutrino mixing upon electron fraction in core collapse supernovaeSáez, María ManuelaMosquera, Mercedes ElisaCivitarese, Enrique OsvaldoAstroparticle PhysicsNeutrinosNuclear ReactionsNucleosynthesisAbundanceshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The inclusion of massive neutrinos affects the cross sections involved in the formation of heavy nuclei, modifying their abundances.Rapid neutron capture processes (r-process) are often associated with explosive events such as core-collapse supernovae. In this work we study the effects of active and sterile neutrino oscillations and interactions, upon the calculation of neutrino fluxes, the baryonic density and the electron fraction of the material. We have considered two different initial distribution functions of the neutrinos and different combinations of mixing parameters (including $heta_{34}e0$). We use the formalism of density matrices for the calculations and included the effects of neutrino oscillations, interactions with matter and self-neutrino interactions. We found that the interactions of the neutrinos with matter and with themselves change the electron fraction, affecting the onset of the r-process.Fil: Sáez, María Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaFil: Mosquera, Mercedes Elisa. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Área Física Teórica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Civitarese, Enrique Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; ArgentinaAsociación Argentina de Astronomía2018-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/86312Sáez, María Manuela; Mosquera, Mercedes Elisa; Civitarese, Enrique Osvaldo; Effects of neutrino mixing upon electron fraction in core collapse supernovae; Asociación Argentina de Astronomía; Boletín de la Asociación Argentina de Astronomía; 60; 8-2018; 11-131669-9521CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.astronomiaargentina.org.ar/uploads/docs/baaa_60.pdfinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:29:09Zoai:ri.conicet.gov.ar:11336/86312instacron: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 15:29:10.043CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effects of neutrino mixing upon electron fraction in core collapse supernovae
title Effects of neutrino mixing upon electron fraction in core collapse supernovae
spellingShingle Effects of neutrino mixing upon electron fraction in core collapse supernovae
Sáez, María Manuela
Astroparticle Physics
Neutrinos
Nuclear Reactions
Nucleosynthesis
Abundances
title_short Effects of neutrino mixing upon electron fraction in core collapse supernovae
title_full Effects of neutrino mixing upon electron fraction in core collapse supernovae
title_fullStr Effects of neutrino mixing upon electron fraction in core collapse supernovae
title_full_unstemmed Effects of neutrino mixing upon electron fraction in core collapse supernovae
title_sort Effects of neutrino mixing upon electron fraction in core collapse supernovae
dc.creator.none.fl_str_mv Sáez, María Manuela
Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author Sáez, María Manuela
author_facet Sáez, María Manuela
Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author_role author
author2 Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author2_role author
author
dc.subject.none.fl_str_mv Astroparticle Physics
Neutrinos
Nuclear Reactions
Nucleosynthesis
Abundances
topic Astroparticle Physics
Neutrinos
Nuclear Reactions
Nucleosynthesis
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 The inclusion of massive neutrinos affects the cross sections involved in the formation of heavy nuclei, modifying their abundances.Rapid neutron capture processes (r-process) are often associated with explosive events such as core-collapse supernovae. In this work we study the effects of active and sterile neutrino oscillations and interactions, upon the calculation of neutrino fluxes, the baryonic density and the electron fraction of the material. We have considered two different initial distribution functions of the neutrinos and different combinations of mixing parameters (including $heta_{34}e0$). We use the formalism of density matrices for the calculations and included the effects of neutrino oscillations, interactions with matter and self-neutrino interactions. We found that the interactions of the neutrinos with matter and with themselves change the electron fraction, affecting the onset of the r-process.
Fil: Sáez, María Manuela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina
Fil: Mosquera, Mercedes Elisa. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Área Física Teórica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Civitarese, Enrique Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina
description The inclusion of massive neutrinos affects the cross sections involved in the formation of heavy nuclei, modifying their abundances.Rapid neutron capture processes (r-process) are often associated with explosive events such as core-collapse supernovae. In this work we study the effects of active and sterile neutrino oscillations and interactions, upon the calculation of neutrino fluxes, the baryonic density and the electron fraction of the material. We have considered two different initial distribution functions of the neutrinos and different combinations of mixing parameters (including $heta_{34}e0$). We use the formalism of density matrices for the calculations and included the effects of neutrino oscillations, interactions with matter and self-neutrino interactions. We found that the interactions of the neutrinos with matter and with themselves change the electron fraction, affecting the onset of the r-process.
publishDate 2018
dc.date.none.fl_str_mv 2018-08
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/11336/86312
Sáez, María Manuela; Mosquera, Mercedes Elisa; Civitarese, Enrique Osvaldo; Effects of neutrino mixing upon electron fraction in core collapse supernovae; Asociación Argentina de Astronomía; Boletín de la Asociación Argentina de Astronomía; 60; 8-2018; 11-13
1669-9521
CONICET Digital
CONICET
url http://hdl.handle.net/11336/86312
identifier_str_mv Sáez, María Manuela; Mosquera, Mercedes Elisa; Civitarese, Enrique Osvaldo; Effects of neutrino mixing upon electron fraction in core collapse supernovae; Asociación Argentina de Astronomía; Boletín de la Asociación Argentina de Astronomía; 60; 8-2018; 11-13
1669-9521
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.astronomiaargentina.org.ar/uploads/docs/baaa_60.pdf
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
dc.publisher.none.fl_str_mv Asociación Argentina de Astronomía
publisher.none.fl_str_mv Asociación Argentina de Astronomía
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
_version_ 1846083431309508608
score 13.22299

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