Journal
NUCLEAR PHYSICS A
Volume 814, Issue -, Pages 159-173Publisher
ELSEVIER
DOI: 10.1016/j.nuclphysa.2008.09.010
Keywords
Beta-decay; r-process nucleosynthesis; Neutron-rich nuclei; Density functional; Quasi-particle random phase approximation
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Funding
- German Deutsche Forschungsgemeinschaft [436 RUS 113 907/0-1]
- Russian Foundation for Basic Research
- Flanders Foundation of Scientific Research [RFBR-FI-05-02-19813]
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Systematic mean-field calculations of the beta-decay rates for the nuclei with charge numbers Z = 42-49 approaching the possible r-process paths in vicinity of the spherical neutron shell at N = 82 are performed within the DF+CQRPA framework employing a self-consistent approach to the nuclear ground states based on the local energy-density functional (DF) theory. The calculated ground state properties are compared with the available experimental data. The beta-strength-functions of the Gamow-Teller and first-forbidden decays and the total beta-decay half-lives are calculated within the continuum QRPA approach. If available, data and half-lives obtained on the basis of the Finite Range Droplet Model and the shell model are compared to our results. The effects of our calculated half-lives on the r-process abundances are explored in local r-process calculations. (C) 2008 Elsevier B.V. All rights reserved.
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