Beta-decay from r-process waiting-point nuclei
- Department of Physics and Astronomy, University of North Carolina at Chapel Hill (United States)
Beta-decay rates in neutron-rich nuclei with closed neutron shells govern the relative abundances of heavy elements made by the astrophysical r process. We calculate the beta-decay half-lives of these important nuclei in a fully microscopic self-consistent HFB+QRPA model, using the same Skyrme force for the particle-hole channel in both HFB and QRPA and a two-Gaussian neutron-proton (np) particle-particle interaction. In most cases we find smaller half-lives than do other groups; the reason is our inclusion of the residual particle-particle interaction. Our results are closest to those of others for doubly magic nuclei, in which the particle-particle interaction has little effect. (c) 1999 American Institute of Physics.
- OSTI ID:
- 20216655
- Journal Information:
- AIP Conference Proceedings, Vol. 481, Issue 1; Other Information: PBD: 2 Sep 1999; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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