标题： 重超子在元素范围$70\leZ \le79$的施特克质量测量在ESR中 显示英文标题

标题： Schottky mass measurements of heavy neutron-rich nuclides in the element range $70\leZ \le79$ at the ESR

摘要： 储存环质谱法被用于中子丰富的$^{197}$金入射碎片。 首次测定了$^{181,183}$镥、$^{185,186}$铪、$^{187,188}$钽、 $^{191}$钨和$^{192,193}$铼核的质量。 先前已知的$^{189,190}$W 和$^{195}$Os 核的质量不确定性得到了改进。 在 Hf 和 W 同位素的平滑两中子分离能上观察到的不规则性与相应核的集体现象有关。 显示英文摘要

摘要： Storage-ring mass spectrometry was applied to neutron-rich $^{197}$Au projectile fragments. Masses of $^{181,183}$Lu, $^{185,186}$Hf, $^{187,188}$Ta, $^{191}$W, and $^{192,193}$Re nuclei were measured for the first time. The uncertainty of previously known masses of $^{189,190}$W and $^{195}$Os nuclei was improved. Observed irregularities on the smooth two-neutron separation energies for Hf and W isotopes are linked to the collectivity phenomena in the corresponding nuclei.