Influence of light nuclei on neutrino-driven supernova outflows

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dc.creatorArcones, A.
dc.creatorMartinez-Pinedo, G.
dc.creatorO'Connor, E.
dc.creatorSchwenk, A.
dc.creatorJanka, H. -Th.
dc.creatorHorowitz, C. J.
dc.creatorLanganke, K.
dc.date2008-05-25
dc.date.accessioned2026-07-07T11:51:05Z
dc.date.available2026-07-07T11:51:05Z
dc.descriptionWe study the composition of the outer layers of a protoneutron star and show that light nuclei are present in substantial amounts. The composition is dominated by nucleons, deuterons, tritons and alpha particles; 3He is present in smaller amounts. This composition can be studied in laboratory experiments with new neutron-rich radioactive beams that can reproduce similar densities and temperatures. After including the corresponding neutrino interactions, we demonstrate that light nuclei have a small impact on the average energy of the emitted electron neutrinos, but are significant for the average energy of antineutrinos. During the early post-explosion phase, the average energy of electron antineutrinos is slightly increased, while at later times during the protoneutron star cooling it is reduced by about 1 MeV. The consequences of these changes for nucleosynthesis in neutrino-driven supernova outflows are discussed.
dc.description10 pages, 4 figures, submitted to PRC
dc.identifierhttps://arxiv.org/abs/0805.3752
dc.identifierhttp://arxiv.org/abs/0805.3752
dc.identifierPhys.Rev.C78:015806,2008
dc.identifierdoi:10.1103/PhysRevC.78.015806
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203776
dc.subjectAstrophysics
dc.subjectNuclear Experiment
dc.subjectNuclear Theory
dc.titleInfluence of light nuclei on neutrino-driven supernova outflows
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