Neutrino-induced reaction rates for r-process nuclei

Details Neutrino-induced reaction rates for r-process nuclei Neutrino-induced reaction rates for r-process nuclei

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000phrvc..61e5803h&link_type=abstract

Physical Review C (Nuclear Physics), Volume 61, Issue 5, May 2000, id.055803

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Nucleosynthesis In Novae, Supernovae, And Other Explosive Environments, Hartree-Fock And Random-Phase Approximations, Weak-Interaction And Lepton Aspects, Neutrino Scattering

Scientific paper

Neutrino-induced charged- and neutral-current reactions play an important role during and after the r process, if the latter occurs in an environment with extreme neutrino fluxes such as the neutrino-driven wind model or neutron star mergers. Therefore consistent r-process simulations require the knowledge of neutrino-nucleus reaction rates for very neutron-rich nuclei. The neutrino reactions can excite the daughter nucleus above the neutron threshold, which are quite low for r-process nuclei. Thus the daughter nucleus will decay by emission of one or several neutrons. We have calculated the relevant total and partial neutron spallation cross sections for r-process nuclei with neutron numbers N=41-135. Our calculations are based on the random phase approximation and consider allowed as well as forbidden transitions.

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