Abstract
We have performed large-scale shell-model calculations of the half-lives and neutron-branching probabilities of the -process waiting-point nuclei at the magic neutron number . We find good agreement with the measured half-lives of and . Our shell-model half-lives are noticeably shorter than those currently adopted in process simulations. Our calculation suggests that is not produced in -flow equilibrium with the other isotones on the -process path.
- Received 23 July 1999
DOI:https://doi.org/10.1103/PhysRevLett.83.4502
©1999 American Physical Society