Neutrino Capture and r-Process Nucleosynthesis

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dc.creatorMeyer, Bradley S.
dc.creatorMcLaughlin, Gail C.
dc.creatorFuller, George M.
dc.date1998-09-18
dc.date.accessioned2026-07-07T11:08:26Z
dc.date.available2026-07-07T11:08:26Z
dc.descriptionWe explore neutrino capture during r-process nucleosynthesis in neutrino-driven ejecta from nascent neutron stars. We focus on the interplay between charged-current weak interactions and element synthesis, and we delineate the important role of equilibrium nuclear dynamics. During the period of coexistence of free nucleons and light and/or heavy nuclei, electron neutrino capture inhibits the r-process. At all stages, capture on free neutrons has a larger impact than capture on nuclei. However, neutrino capture on heavey nuclei by itself, if it is very strong, is also detrimental to the r-process until large nuclear equilibrium clusters break down and the classical neutron-capture phase of the r-process begins. The sensitivity of the r-process to neutrino irradiation means that neutrino-capture effects can strongly constrain the r-process site, neutrino physics, or both. These results apply also to r-process scenarios other than neutrino-heated winds.
dc.description20 pages, 17 figures, Submitted to Physical Review C
dc.identifierhttps://arxiv.org/abs/astro-ph/9809242
dc.identifierhttp://arxiv.org/abs/astro-ph/9809242
dc.identifierPhys.Rev.C58:3696-3710,1998
dc.identifierdoi:10.1103/PhysRevC.58.3696
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/190137
dc.subjectAstrophysics
dc.subjectNuclear Theory
dc.titleNeutrino Capture and r-Process Nucleosynthesis
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