Collisional effects, ion-acoustic waves, and neutrino oscillations

Detalhes bibliográficos
Autor(a) principal: Haas, Fernando
Data de Publicação: 2017
Outros Autores: Pascoal, Kellen Alves, Mendonça, José Tito
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/181073
Resumo: We analyze the role of collisional effects on the coupling between ion-acoustic waves and neutrino flavor oscillations, discussing its relevance for plasma instabilities in extreme plasma environments like in type II supernovae, where intense neutrino bursts exist. Electrons (leptons) are coupled to the electron-neutrino fluid through the weak Fermi force, but the electron-neutrinos are allowed to convert to other neutrino flavors and vice versa. Due to the typically slow frequency of neutrino flavor oscillations, many orders smaller than, e.g., the plasma frequency, an effective energy transfer between plasma waves and neutrino flavor oscillations takes place at the low-frequency electrostatic branch, viz., the ion-acoustic mode. We show the destabilization of ion-acoustic waves in dense astrophysical scenarios, with a focus on the collisional effects mediated by electron-ion scattering. The maximal instability growth-rate is evaluated and compared to the characteristic inverse times of type II supernova explosions. The results can be used for independent experimental verification of the non-zero neutrino mass, in a plasma physics context. Published by AIP Publishing.
id UFRGS-2_aaad64b7e5307303bbf574cb20b535ea
oai_identifier_str oai:www.lume.ufrgs.br:10183/181073
network_acronym_str UFRGS-2
network_name_str Repositório Institucional da UFRGS
repository_id_str
spelling Haas, FernandoPascoal, Kellen AlvesMendonça, José Tito2018-08-17T02:33:12Z20171070-664Xhttp://hdl.handle.net/10183/181073001021336We analyze the role of collisional effects on the coupling between ion-acoustic waves and neutrino flavor oscillations, discussing its relevance for plasma instabilities in extreme plasma environments like in type II supernovae, where intense neutrino bursts exist. Electrons (leptons) are coupled to the electron-neutrino fluid through the weak Fermi force, but the electron-neutrinos are allowed to convert to other neutrino flavors and vice versa. Due to the typically slow frequency of neutrino flavor oscillations, many orders smaller than, e.g., the plasma frequency, an effective energy transfer between plasma waves and neutrino flavor oscillations takes place at the low-frequency electrostatic branch, viz., the ion-acoustic mode. We show the destabilization of ion-acoustic waves in dense astrophysical scenarios, with a focus on the collisional effects mediated by electron-ion scattering. The maximal instability growth-rate is evaluated and compared to the characteristic inverse times of type II supernova explosions. The results can be used for independent experimental verification of the non-zero neutrino mass, in a plasma physics context. Published by AIP Publishing.application/pdfengPhysics of plasmas. Melville. Vol. 24, no. 5 (May 2017), 052115, 4 p.Oscilações de neutrinosOndas íon-acústicas em plasmasProcessos de colisao em plasmasCollisional effects, ion-acoustic waves, and neutrino oscillationsEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL001021336.pdfTexto completo (inglês)application/pdf281788http://www.lume.ufrgs.br/bitstream/10183/181073/1/001021336.pdf975e483710a48c7b31e79ad389909c71MD51TEXT001021336.pdf.txt001021336.pdf.txtExtracted Texttext/plain18190http://www.lume.ufrgs.br/bitstream/10183/181073/2/001021336.pdf.txtff5a51d1615ef054bf45617bbbd0e167MD52THUMBNAIL001021336.pdf.jpg001021336.pdf.jpgGenerated Thumbnailimage/jpeg1366http://www.lume.ufrgs.br/bitstream/10183/181073/3/001021336.pdf.jpg97fd32f0655c155797a12882e1267fb8MD5310183/1810732023-07-20 03:35:48.574115oai:www.lume.ufrgs.br:10183/181073Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-20T06:35:48Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Collisional effects, ion-acoustic waves, and neutrino oscillations
title Collisional effects, ion-acoustic waves, and neutrino oscillations
spellingShingle Collisional effects, ion-acoustic waves, and neutrino oscillations
Haas, Fernando
Oscilações de neutrinos
Ondas íon-acústicas em plasmas
Processos de colisao em plasmas
title_short Collisional effects, ion-acoustic waves, and neutrino oscillations
title_full Collisional effects, ion-acoustic waves, and neutrino oscillations
title_fullStr Collisional effects, ion-acoustic waves, and neutrino oscillations
title_full_unstemmed Collisional effects, ion-acoustic waves, and neutrino oscillations
title_sort Collisional effects, ion-acoustic waves, and neutrino oscillations
author Haas, Fernando
author_facet Haas, Fernando
Pascoal, Kellen Alves
Mendonça, José Tito
author_role author
author2 Pascoal, Kellen Alves
Mendonça, José Tito
author2_role author
author
dc.contributor.author.fl_str_mv Haas, Fernando
Pascoal, Kellen Alves
Mendonça, José Tito
dc.subject.por.fl_str_mv Oscilações de neutrinos
Ondas íon-acústicas em plasmas
Processos de colisao em plasmas
topic Oscilações de neutrinos
Ondas íon-acústicas em plasmas
Processos de colisao em plasmas
description We analyze the role of collisional effects on the coupling between ion-acoustic waves and neutrino flavor oscillations, discussing its relevance for plasma instabilities in extreme plasma environments like in type II supernovae, where intense neutrino bursts exist. Electrons (leptons) are coupled to the electron-neutrino fluid through the weak Fermi force, but the electron-neutrinos are allowed to convert to other neutrino flavors and vice versa. Due to the typically slow frequency of neutrino flavor oscillations, many orders smaller than, e.g., the plasma frequency, an effective energy transfer between plasma waves and neutrino flavor oscillations takes place at the low-frequency electrostatic branch, viz., the ion-acoustic mode. We show the destabilization of ion-acoustic waves in dense astrophysical scenarios, with a focus on the collisional effects mediated by electron-ion scattering. The maximal instability growth-rate is evaluated and compared to the characteristic inverse times of type II supernova explosions. The results can be used for independent experimental verification of the non-zero neutrino mass, in a plasma physics context. Published by AIP Publishing.
publishDate 2017
dc.date.issued.fl_str_mv 2017
dc.date.accessioned.fl_str_mv 2018-08-17T02:33:12Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/181073
dc.identifier.issn.pt_BR.fl_str_mv 1070-664X
dc.identifier.nrb.pt_BR.fl_str_mv 001021336
identifier_str_mv 1070-664X
001021336
url http://hdl.handle.net/10183/181073
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Physics of plasmas. Melville. Vol. 24, no. 5 (May 2017), 052115, 4 p.
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
bitstream.url.fl_str_mv http://www.lume.ufrgs.br/bitstream/10183/181073/1/001021336.pdf
http://www.lume.ufrgs.br/bitstream/10183/181073/2/001021336.pdf.txt
http://www.lume.ufrgs.br/bitstream/10183/181073/3/001021336.pdf.jpg
bitstream.checksum.fl_str_mv 975e483710a48c7b31e79ad389909c71
ff5a51d1615ef054bf45617bbbd0e167
97fd32f0655c155797a12882e1267fb8
bitstream.checksumAlgorithm.fl_str_mv MD5
MD5
MD5
repository.name.fl_str_mv Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)
repository.mail.fl_str_mv
_version_ 1815447666097651712