Pinedo, Gabriel Martínez ; Fischer, T. ; Lohs, A. ; Huther, L. (2012)
Charged-current weak interaction processes and its impact on proto-neutron star cooling and nucleosynthesis.
In: Journal of Physics: Conference Series, 403 (1)
doi: 10.1088/1742-6596/403/1/012037
Artikel, Bibliographie
Dies ist die neueste Version dieses Eintrags.
Kurzbeschreibung (Abstract)
We show that a treatment of charged-current neutrino interactions in hot and dense matter that is consistent with the nuclear equation of state has a strong impact on the spectra of the neutrinos emitted during the deleptonization period of a protoneutron star formed in a core-collapse supernova. We compare results of simulations including and neglecting mean field effects on the neutrino opacities. Their inclusion reduces the luminosities of all neutrino flavors and enhances the spectral differences between electron neutrino and antineutrino. The magnitude of the difference depends on the equation of state and in particular on the symmetry energy at sub-nuclear densities. These modifications reduce the proton-to-nucleon ratio of the neutrino-driven outflow, increasing slightly their entropy. They are expected to have a substantial impact on the nucleosynthesis in neutrino-driven winds, even though they do not result in conditions that favor an r-process. Contrarily to previous findings, our simulations show that the spectra of electron neutrinos remain substantially different from those of other (anti)neutrino flavors during the entire deleptonization phase of the protoneutron star. The obtained luminosity and spectral changes are also expected to have important consequences for neutrino flavor oscillations and neutrino detection on Earth.
| Typ des Eintrags: | Artikel |
|---|---|
| Erschienen: | 2012 |
| Autor(en): | Pinedo, Gabriel Martínez ; Fischer, T. ; Lohs, A. ; Huther, L. |
| Art des Eintrags: | Bibliographie |
| Titel: | Charged-current weak interaction processes and its impact on proto-neutron star cooling and nucleosynthesis |
| Sprache: | Englisch |
| Publikationsjahr: | 18 Dezember 2012 |
| Ort: | Bristol |
| Verlag: | IOP Publishing |
| Titel der Zeitschrift, Zeitung oder Schriftenreihe: | Journal of Physics: Conference Series |
| Jahrgang/Volume einer Zeitschrift: | 403 |
| (Heft-)Nummer: | 1 |
| Kollation: | 7 Seiten |
| DOI: | 10.1088/1742-6596/403/1/012037 |
| Zugehörige Links: | |
| Kurzbeschreibung (Abstract): | We show that a treatment of charged-current neutrino interactions in hot and dense matter that is consistent with the nuclear equation of state has a strong impact on the spectra of the neutrinos emitted during the deleptonization period of a protoneutron star formed in a core-collapse supernova. We compare results of simulations including and neglecting mean field effects on the neutrino opacities. Their inclusion reduces the luminosities of all neutrino flavors and enhances the spectral differences between electron neutrino and antineutrino. The magnitude of the difference depends on the equation of state and in particular on the symmetry energy at sub-nuclear densities. These modifications reduce the proton-to-nucleon ratio of the neutrino-driven outflow, increasing slightly their entropy. They are expected to have a substantial impact on the nucleosynthesis in neutrino-driven winds, even though they do not result in conditions that favor an r-process. Contrarily to previous findings, our simulations show that the spectra of electron neutrinos remain substantially different from those of other (anti)neutrino flavors during the entire deleptonization phase of the protoneutron star. The obtained luminosity and spectral changes are also expected to have important consequences for neutrino flavor oscillations and neutrino detection on Earth. |
| Zusätzliche Informationen: | HITES 2012: 'Horizons of Innovative Theories, Experiments, and Supercomputing in Nuclear Physics' 4–7 June 2012, New Orleans, Louisiana, US |
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik |
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik |
| Hinterlegungsdatum: | 31 Jan 2024 09:43 |
| Letzte Änderung: | 05 Feb 2024 07:26 |
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| Suche nach Titel in: | TUfind oder in Google |
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Charged-current weak interaction processes and its impact on proto-neutron star cooling and nucleosynthesis. (deposited 22 Jan 2024 12:16)
- Charged-current weak interaction processes and its impact on proto-neutron star cooling and nucleosynthesis. (deposited 31 Jan 2024 09:43) [Gegenwärtig angezeigt]
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