A high-entropy wind r-process study based on nuclear-structure quantities from the new finite-range droplet model FRDM(2012)

Understand

Theoretical studies of the nucleosynthesis origin of the heavy elements in our Solar System (S.S.) by the rapid neutron-capture process (r-process) still face the entwined uncertainties in the possible astrophysical scenarios and the nuclear-physics properties far from stability.

• In this paper we present results from the investigation of an r-process in the high-entropy wind (HEW) of core-collapse supernovae (here chosen as one of the possible scenarios for this nucleosynthesis process), using new nuclear-data input calculated in a consistent approach, for masses and $\beta$-decay properties from the new finite-range droplet model FRDM(2012).
• The accuracy of the new mass model is 0.56 MeV with respect to {\sc AME2003}, to which it was adjusted.
• We compare the new HEW r-process abundance pattern to the latest S.S.