Shell-Model Half-Lives for N=82 Nuclei and Their Implications for the r Process

G. Martínez-Pinedo and K. Langanke
Phys. Rev. Lett. 83, 4502 – Published 29 November 1999
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Abstract

We have performed large-scale shell-model calculations of the half-lives and neutron-branching probabilities of the r-process waiting-point nuclei at the magic neutron number N=82. We find good agreement with the measured half-lives of 129Ag and 130Cd. Our shell-model half-lives are noticeably shorter than those currently adopted in r process simulations. Our calculation suggests that 130Cd is not produced in β-flow equilibrium with the other N=82 isotones on the r-process path.

  • Received 23 July 1999

DOI:https://doi.org/10.1103/PhysRevLett.83.4502

©1999 American Physical Society

Authors & Affiliations

G. Martínez-Pinedo and K. Langanke

  • Institut for Fysik og Astronomi, Århus Universitet, DK-8000 Århus C, Denmark

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Vol. 83, Iss. 22 — 29 November 1999

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