Neutrino Interactions and Heavy Element Synthesis

Details Neutrino Interactions and Heavy Element Synthesis Neutrino Interactions and Heavy Element Synthesis

Oct 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aps..dnp..aa01m&link_type=abstract

American Physical Society, Division of Nuclear Physics Meeting, October 5-8, 1997, abstract #AA.01

Physics

Nuclear Physics

Scientific paper

Type II supernova and neutron star-neutron star mergers are candidate sites for the production of certain heavy nuclei, such as the r-process elements. In these environments, nucleosynthesis takes place in the presence of a neutrino flux. Depending on the intensity of the flux, neutrino interactions with heavy nuclei can play an important role in determining final abundances. Knowledge of the relevant weak interaction cross sections is therefore an ingredient in determining the astrophysical site and conditions during which r-process nucleosynthesis occurs. Through charge-changing processes and neutrino-induced particle emission, significant neutrino scattering will impact the nuclear flow in the (N,Z) plane during nucleosynthesis. The neutrino flux experienced by a nucleus depends on the hydrodynamic conditions. Therefore, the study of neutrino scattering in a rapidly expanding environment typical of the post-core-bounce supernova, helps to discriminate between various outflow scenarios.

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