Neutrinoless double beta nuclear matrix elements around mass 80 in the nuclear shell-model
Neutrinoless double beta nuclear matrix elements around mass 80 in the nuclear shell-model
复制标题
核壳模型中质量为 80 左右的无中微子双 β 核基质元素
DOI：
10.1051/epjconf/20159301055
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发表时间：
2015
影响因子：
--
通讯作者：
and E. Teruya
中科院分区：
文献类型：
--
作者：
N. Yoshinaga;K. Higashiyama;D. Taguchi;and E. Teruya
对中微子双β衰变的观测可以确定中微子是否是马约拉纳粒子。在其理论核方面，特别重要的是估计三种类型的核矩阵元素，即费米(F)，伽莫夫-泰勒（GT）和张量(T)型矩阵元素。进行了壳模型计算和对截短壳模型计算，验证了模型对核矩阵元素的依赖性。本文研究了质量为a = 82的原子核的中微子双β衰变。结果表明，基元对基态波函数非常敏感。
The observation of the neutrinoless double-beta decay can determine whether the neutrino is a Majorana particle or not. In its theoretical nuclear side it is particularly important to estimate three types of nuclear matrix elements, namely, Fermi (F), Gamow–Teller (GT), and tensor (T) types matrix elements. The shell model calculations and also the pair-truncated shell model calculations are carried out to check the model dependence on nuclear matrix elements. In this work the neutrinoless double-beta decay for massA= 82 nuclei is studied. It is found that the matrix elements are quite sensitive to the ground state wavefunctions.