出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A rudimentary calculation is employed to evaluate the possible effects of -decays of excited
state nuclei on the astrophysical r-process. Single particle levels calculated with the
FRDM are adapted to the calculation of -decay rates of these excited state nuclei. Quantum
numbers are determined based on proximity to Nilson model levels. The resulting
rates are used in an r-process network calculation in which a supernova hot-bubble model
is coupled to an extensive network calculation including all nuclei between the valley of
stability and the neutron drip line and with masses 1A283. -decay rates are included
as functional forms of the environmental temperature. While the decay rate model used
is simple and phenomenological, it is consistent across all 3700 nuclei involved in the rprocess
network calculation. This represents an approximate first estimate to gauge the
possible effects of excited-state -decays on r-process freezeout abundances.
