Effects of neutrino mixing upon electron fraction in core collapse supernovae

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...

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Detalles Bibliográficos
Autores principales: Sáez, María Manuela, Mosquera, Mercedes Elisa, Civitarese, Enrique Osvaldo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Astronomía
Física
Astroparticle physics
Neutrinos
Nuclear reactions
Nucleosynthesis
Abundances
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/102770
https://ri.conicet.gov.ar/11336/86312
http://www.astronomiaargentina.org.ar/uploads/docs/baaa_60.pdf
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-102770
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Astronomía
Física
Astroparticle physics
Neutrinos
Nuclear reactions
Nucleosynthesis
Abundances
spellingShingle Astronomía
Física
Astroparticle physics
Neutrinos
Nuclear reactions
Nucleosynthesis
Abundances
Sáez, María Manuela
Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
Effects of neutrino mixing upon electron fraction in core collapse supernovae
topic_facet Astronomía
Física
Astroparticle physics
Neutrinos
Nuclear reactions
Nucleosynthesis
Abundances
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 θ<sub>34</sub> ≠ 0). 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.
format Articulo
Articulo
author Sáez, María Manuela
Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author_facet Sáez, María Manuela
Mosquera, Mercedes Elisa
Civitarese, Enrique Osvaldo
author_sort Sáez, María Manuela
title Effects of neutrino mixing upon electron fraction in core collapse supernovae
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
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/102770
https://ri.conicet.gov.ar/11336/86312
http://www.astronomiaargentina.org.ar/uploads/docs/baaa_60.pdf
work_keys_str_mv AT saezmariamanuela effectsofneutrinomixinguponelectronfractionincorecollapsesupernovae
AT mosqueramercedeselisa effectsofneutrinomixinguponelectronfractionincorecollapsesupernovae
AT civitareseenriqueosvaldo effectsofneutrinomixinguponelectronfractionincorecollapsesupernovae
bdutipo_str Repositorios
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