$^{156}$ Dy同位素中微子$\varepsilon β^{+}$和$\varepsilon \varepsilon $模的四极关联和形变效应
Quadrupolar correlations and deformation effect on two neutrino $\varepsilon β^{+}$ and $\varepsilon \varepsilon $ modes of $^{156}$Dy isotope
摘要：
在Hartree-Fock-Bogoliubov投影框架下研究了$^{156}$ Dy同位素的$0^{+}\to 0^{+}$跃迁的双中微子正电子双$β$衰变模式.给出了电子-正电子转换和双电子俘获模式的理论计算半衰期。研究了四极形变对核跃迁矩阵元$M_{2ν}$的影响。
英文摘要：
The two-neutrino positron double-$β$ decay modes of $^{156}$Dy isotope are studied in the Projected Hartree-Fock-Bogoliubov framework for the $0^{+}\to 0^{+}$ transition. Theoretically calculated half-lives of electron-positron conversion and double-electron capture modes are presented. The effect of the quadrupolar deformation on nuclear transition matrix element $M_{2ν}$ is also investigated.
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