Stellar weak interaction rates and shape coexistence for 68Se and 72Kr waiting points

被引：9
|
作者：
Petrovici, A. [1 ]
Andrei, O. [1 ]
机构：
[1] Natl Inst Phys & Nucl Engn, R-077125 Bucharest, Romania
来源：
EUROPEAN PHYSICAL JOURNAL A | 2015年 / 51卷 / 10期
关键词：
INTERMEDIATE-MASS NUCLEI; BETA-DECAY;
D O I：
10.1140/epja/i2015-15133-9
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Beyond-mean-field results on stellar beta-decay and continuum electron capture rates for the rp-process waiting point nuclei Se-68 and Kr-72 at densities rho Y-e = 10(4)-10(7) mol/cm(3) and temperatures T = 10(8)-10(10) 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.
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页数：8
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