?-ray spectroscopy of At 197
?-ray spectroscopy of At 197
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At 197 的 γ 射线光谱
DOI：
10.1103/physrevc.78.044328
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发表时间：
2008
影响因子：
3.1
通讯作者：
Andgren K
中科院分区：
文献类型：
--
作者：
Andgren K
在束内实验中，利用聚变蒸发反应（，）研究了极缺中子核的激发态，用反冲α衰变示踪技术鉴别了供给基态的γ射线和供给311-keVisomer的γ射线，以及52-keV的α衰变同质异能素。总的Routhian表面计算预测（）基态的近似球形，（）和（）态的近似扁球形，约为-0.2。这些预测与我们的实验结果一致。
Excited states of the extremely neutron-deficient nucleushave been studied in an in-beam experiment using the fusion-evaporation reaction(,).rays belonging tofeeding theground state, as well as γ rays feeding the 311-keVisomer, decaying via the emission of γ rays, and the 52-keVα-decaying isomer have been identified using the recoil-α-decay tagging technique. Total Routhian surface calculations predict a near-spherical shape for the () ground state and oblate shapes witharound −0.2 for the () and the () states. These predictions agree with our experimental findings.