The β decay of ${}_{75}^{192}$Re₁₁₇, which lies near the boundary between the regions of predicted prolate and oblate deformations, has been investigated using the KEK Isotope Separation System (KISS) in RIKEN Nishina Center. This is the first case in which a low-energy beam of rhenium isotope has been successfully extracted from an argon gas-stopping cell using a laser-ionization technique, following production via multi-nucleon transfer between heavy ions. The ground state of ¹⁹²Re has been assigned $J^{\pi }=(0^{-})$ based on the observed β feedings and deduced logft values towards the $0^{+}$ and $2^{+}$ states in ¹⁹²Os, which is known as a typical γ-soft nucleus. The shape transition from axial symmetry to axial asymmetry in the Re isotopes is discussed from the viewpoint of single-particle structure using the nuclear Skyrme-Hartree-Fock model.

在β衰变${}_{75}^{192}$Re ₁₁₇（位于预测的扁长形和扁圆形形变区域之间的边界附近）已使用理研西那中心的KEK同位素分离系统（KISS）进行了研究。这是在重离子之间通过多核子转移产生之后，成功地使用激光电离技术从氩气停止电池中成功提取出is能量低的beam同位素束的情况。¹⁹² Re的基本状态已分配${Ĵ}^{\pi }=（0^{-}）$根据观察到的β饲喂和推导的log ft值$0^{+}$ 和 $2^{+}$态在¹⁹² Os内被称为典型的γ软核。利用核Skyrme-Hartree-Fock模型从单粒子结构的角度讨论了Re同位素中从轴向对称到轴向不对称的形状转变。