Total absorption gamma-ray spectroscopy study of the ß-decay of 186Hg
Total absorption gamma-ray spectroscopy study of the ß-decay of 186Hg
复制标题
186Hg 衰变的全吸收伽马射线光谱研究
DOI：
10.1016/j.physletb.2021.136438
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发表时间：
2021
影响因子：
4.4
通讯作者：
Algora A
中科院分区：
文献类型：
--
作者：
Algora A
首次使用全吸收伽马能谱技术确定了 186Hg 衰变为 186Au 的伽莫夫泰勒强度分布，并与使用 SLy4 Skyrme 力的理论 QRPA 计算进行了比较。测量的伽莫夫泰勒强度分布和半衰期是通过在母核和子核中独立混合扁圆和长长构型来描述的。在此理论框架中，对母体 186Hg 和子体 186Au 的实验 β 强度的最佳描述是通过主要长长形成分获得的。该方法还允许我们确定父状态中扁圆分量的上限。分析的复杂性要求开发一种新的 X 射线门控总吸收光谱分析方法。
The Gamow-Teller strength distribution of the decay of186Hg into186Au has been determined for the first time using the total absorption gamma spectroscopy technique and has been compared with theoretical QRPA calculations using the SLy4 Skyrme force. The measured Gamow-Teller strength distribution and the half-life are described by mixing oblate and prolate configurations independently in the parent and daughter nuclei. In this theoretical framework the best description of the experimental beta strength is obtained with dominantly prolate components for both parent186Hg and daughter186Au. The approach also allowed us to determine an upper limit of the oblate component in the parent state. The complexity of the analysis required the development of a new approach in the analysis of the X-ray gated total absorption spectrum.