English

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

Astrophysics 2008-12-18 v1

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 QβQ_\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.

Keywords

Cite

@article{arxiv.0811.1189,
  title  = {Shell model half-lives for r-process N=82 nuclei},
  author = {J. J. Cuenca-Garcia and G. Martinez-Pinedo and K. Langanke and F. Nowacki and I. N. Borzov},
  journal= {arXiv preprint arXiv:0811.1189},
  year   = {2008}
}
R2 v1 2026-06-21T11:39:21.845Z