Neutrino capture and r-process nucleosynthesis

Details Neutrino capture and r-process nucleosynthesis Neutrino capture and r-process nucleosynthesis

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..412..992m&link_type=abstract

The sixth conference on the intersections of particle and nuclear physcis. AIP Conference Proceedings, Volume 412, pp. 992-998

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Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, Stellar Structure, Interiors, Evolution, Nucleosynthesis, Ages

Scientific paper

Neutrino capture effects on free nucleons and heavy nuclei in r-process nucleosynthesis are discussed. Neutrino capture on heavy nuclei can ``accelerate'' the r-process; however, the dominant role neutrino capture plays is to set the neutron-to-proton ratio. In fact, network calculations indicate that neutrino capture on heavy nuclei is unlikely to be significant for r-process components that produce nuclei with mass number A near 195. The reason is that if the neutrino flux is sufficiently large to cause neutrino capture on heavy nuclei to be important, it was even larger in a earlier phase when 4He and neutrons dominated the abundances and capture on the free neutrons drastically reduced the neutron-to-seed-nucleus ratio.

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