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Shell model half-lives for r-process N=82 nuclei

Authors
  • Cuenca-Garcia, J. J.
  • Martinez-Pinedo, G.
  • Langanke, K.
  • Nowacki, F.
  • Borzov, I. N.
Type
Published Article
Publication Date
Nov 07, 2008
Submission Date
Nov 07, 2008
Identifiers
DOI: 10.1140/epja/i2007-10477-3
Source
arXiv
License
Yellow
External links

Abstract

We have performed 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. These new calculations use a larger model space than previous shell model studies and an improved residual interaction which is adjusted to recent spectroscopic data around A=130. Our shell-model results give a good account of all experimentally known half-lives and $Q_\beta$-values for the N=82 r-process waiting point nuclei. Our half-life predictions for the N=82 nuclei with Z=42--46 agree well with recent estimates based in the energy-density functional method.

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