Decay of the 9 / 2 - isomer in Tl 181 and mass determination of low-lying states in Tl 181 , Au 177 , and Ir 173
Decay of the 9 / 2 - isomer in Tl 181 and mass determination of low-lying states in Tl 181 , Au 177 , and Ir 173
复制标题
Tl 181 中 9 / 2 - 异构体的衰变以及 Tl 181 、 Au 177 和 Ir 173 中低位态的质量测定
DOI：
10.1103/physrevc.80.024302
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发表时间：
2009
影响因子：
3.1
通讯作者：
Andreyev A
中科院分区：
文献类型：
--
作者：
Andreyev A
在速度滤波器SHIP（GSI）上对全聚变反应中的缺中子同位素及其衰变子体进行了详细的光谱研究。首次建立了1.40（3）ms的同质异能态侵入态的质量过剩、激发能和衰变方案。这些结果解决了一个长期存在的难题，不切实际的大减少衰变宽度的这种异构体。在此基础上，导出了和中长寿命同质异能态的未知质量。反过来，它现在允许以前确定的频带的激发能和推导和理论预测进行比较。首次测量的衰变分支比和也报道。
A detailed spectroscopic study of the neutron-deficient isotopeand the daughter of itsdecay,, has been performed in the complete fusion reactionat the velocity filter SHIP (GSI). The mass excess, excitation energy, and decay scheme of the isomeric 1.40(3) ms,intruder state inhave been established for the first time. These results solve a long-standing puzzle of the unrealistically large reduced-decay width of this isomer. Based on this, the previously unknown masses of the long-lived isomeric states inandhave been derived. In turn, it now allows the excitation energies of previously identified bands inandto be deduced and compared with theoretical predictions. First measurements of-decay branching ratios forandare also reported.