半幻核$^{210}$的$B(E2; 2^+_1 \to 0^+_1)$值修正
A revised $B(E2; 2^+_1 \to 0^+_1)$ value in the semi-magic nucleus $^{210}$Po
摘要：
用多普勒频移衰减法测量了$^{210}$ Po在$^{208}$ Pb（$^{12}$ C，$^{10}$ Be）$^{210}$ Po转移反应中的$2^+_1$、$2^+_2$和$3^-_1$态的寿命。结果表明，$2^+_1$态的寿命比采用的寿命短约三倍。然而，新的值仍然不允许一致的描述的性质的yrast $2^+_1$，$4^+_1$，$6^+_1$，和$8^+_1$状态的$^{210}$宝在核壳模型的框架。准粒子声子模型（QPM）的计算也不能克服这个问题，从而表明存在一个特殊性，这是在两个理论方法中被忽视。
英文摘要：
The lifetimes of the $2^+_1$, the $2^+_2$ and the $3^-_1$ states of $^{210}$Po have been measured in the $^{208}$Pb($^{12}$C,$^{10}$Be)$^{210}$Po transfer reaction by the Doppler-shift attenuation method. The results for the lifetime of the $2^+_1$ state is about three times shorter than the adopted value. However, the new value still does not allow for consistent description of the properties of the yrast $2^+_1$, $4^+_1$, $6^+_1$, and $8^+_1$ states of $^{210}$Po in the framework of nuclear shell models. The Quasi-particle Phonon Model (QPM) calculations also cannot overcome this problem thus indicating the existence of a peculiarity which is neglected in both theoretical approaches.
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