Collisional effects, ion-acoustic waves, and neutrino oscillations
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
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. |
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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 |
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1070-664X |
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001021336 |
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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. |
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openAccess |
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