Sterile Neutrinos and Supernova Nucleosynthesis

Details Sterile Neutrinos and Supernova Nucleosynthesis Sterile Neutrinos and Supernova Nucleosynthesis

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aps..dnp.dg008b&link_type=abstract

American Physical Society, Division of Nuclear Physics Annual Meeting, October 25-28, 2006, abstract #DG.008

Physics

Nuclear Physics

Scientific paper

Neutrinos play an important role in the core-collapse supernova environment, from facilitating the explosion mechanism to influencing the outflow's elemental composition. Traditional heavy element nucleosynthesis, the r-process, are stifled by electron neutrinos during the alpha particle formation epoch. Introduction of a sterile neutrino species can temper this alpha effect as well as generate an environment sufficiently neutron-rich for fission cycling to occur. Fission cycling in the r-process produces abundance patterns similar to the halo star data. Here we examine reductions in the neutrino flux necessary to achieve fission cycling; sterile neutrinos or other new physics may realize these reductions.

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