Stellar weak interaction rates and shape coexistence for 68Se and 72Kr waiting points
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Beyond-mean-field results on stellar beta-decay and continuum electron capture rates for the rp-process waiting point nuclei 68Se and 72Kr at densities ρY e = 104−107 mol/cm3 and temperatures T = 108−1010 K are presented. The structure of the even-even parent and odd-odd daughter nuclei dominated by shape coexistence and mixing is self-consistently described within the complex Excited Vampir model using realistic effective interactions in rather large model spaces. The influence of the shape mixing in the structure of the low-lying parent states as well as in the independently calculated daughter states on the stellar weak interaction rates is discussed.
KeywordsModel Space Total Decay Rate Shape Coexistence Strong Branch 40Ca Core
- 27.J. Briz, ARIS 2014, Tokyo, Japan, June 1-6, 2014.Google Scholar