Effects of inelastic neutrino-nucleus scattering on supernova dynamics and radiated neutrino spectra
Based on the shell model for Gamow-Teller and the random phase approximation for forbidden transitions, we calculate cross sections for inelastic neutrino-nucleus scattering (INNS) under supernova (SN) conditions, assuming a matter composition given by nuclear statistical equilibrium. The cross sect...
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| Veröffentlicht in: | Physical review letters 2008-01, Vol.100 (1), p.011101-011101, Article 011101 |
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| container_title | Physical review letters |
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| creator | Langanke, K Martínez-Pinedo, G Müller, B Janka, H-Th Marek, A Hix, W R Juodagalvis, A Sampaio, J M |
| description | Based on the shell model for Gamow-Teller and the random phase approximation for forbidden transitions, we calculate cross sections for inelastic neutrino-nucleus scattering (INNS) under supernova (SN) conditions, assuming a matter composition given by nuclear statistical equilibrium. The cross sections are incorporated into state-of-the-art stellar core-collapse simulations with detailed energy-dependent neutrino transport. While no significant effect on the SN dynamics is observed, INNS increases the neutrino opacities noticeably and strongly reduces the high-energy tail of the neutrino spectrum emitted in the neutrino burst at shock breakout. Relatedly the expected event rates for the observation of such neutrinos by earthbound detectors are reduced by up to about 60%. |
| doi_str_mv | 10.1103/physrevlett.100.011101 |
| format | Article |
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The cross sections are incorporated into state-of-the-art stellar core-collapse simulations with detailed energy-dependent neutrino transport. While no significant effect on the SN dynamics is observed, INNS increases the neutrino opacities noticeably and strongly reduces the high-energy tail of the neutrino spectrum emitted in the neutrino burst at shock breakout. 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| identifier | ISSN: 0031-9007 |
| ispartof | Physical review letters, 2008-01, Vol.100 (1), p.011101-011101, Article 011101 |
| issn | 0031-9007 1079-7114 |
| language | eng |
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| source | American Physical Society Journals |
| subjects | CROSS SECTIONS EMISSION SPECTRA ENERGY DEPENDENCE FORBIDDEN TRANSITIONS GAMOW-TELLER RULES INELASTIC SCATTERING NEUTRINO-NUCLEON INTERACTIONS NEUTRINOS PHYSICS OF ELEMENTARY PARTICLES AND FIELDS RANDOM PHASE APPROXIMATION SHELL MODELS SIMULATION SUPERNOVAE |
| title | Effects of inelastic neutrino-nucleus scattering on supernova dynamics and radiated neutrino spectra |
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