论文标题
低能核$^{2.29m} $ th Isomer通过原子Rydberg州的衰减
Decay of the low-energy nuclear $^{229m}$Th isomer via atomic Rydberg states
论文作者
论文摘要
在论文中，通过Rydberg州的内部转换（IC）渠道，首次考虑了$^{2.29m} $ th（$ 3/2^+，8.28 \ pm 0.17 $ ev）的独特过程。 rydberg arom $^{229m} $ th $^{+}+e^-_ {ry} $是一个唯一的对象，其中可以在Rydberg Electron $ e^-__ {ry} $上专门使用IC。结果表明，在$^{2.29m}中，$ th $^{4+}+e^-_ {ry} $ system a）在电子状态上IC具有相对较小的主量子数$ n $的值，而轨道量$ n $和轨道矩$ l $实际上是完全抑制的，b） $ψ_{ns_ {1/2}}（{\ bf {r}}）$状态与$ |ψ_{ns_ {1/2}}（0）|^2 $成比例，并且可以与rydberg electron $ nef nigans $ nc $ n IC $ n Ic} IC $ n的Hyperfine交互能量有关 in the range from 10 to 50, and in the range $n\gtrsim 150$ $W_{IC}$ changes as ${\text{Const}}/n^3$ typical for hydrogen-like ions, d) at $n\thickapprox 10$--30, $W_{IC}$ as a function of $l$ has a characteristic "knee" between $l=3$ and $l=4$, i.e.由于离心电位和屏蔽电位之间的质量变化，$ W_ {IC} $的三个数量级减小。
In the paper, a unique process of the decay of the $^{229m}$Th($3/2^+,8.28\pm 0.17$ eV) low energy nuclear isomer via the internal conversion (IC) channel on Rydberg states is considered for the first time. The Rydberg atom $^{229m}$Th$^{+}+e^-_{Ry}$ is a unique object where IC is possible exclusively on the Rydberg electron $e^-_{Ry}$. It is shown that in the $^{229m}$Th$^{4+}+e^-_{Ry}$ system a) IC on the electron states with relatively small values of the principal quantum number $n$ and the orbital moment $l$ is practically completely suppressed, b) IC probability, $W_{IC}$, on the $ψ_{ns_{1/2}}({\bf{r}})$ states is proportional to $|ψ_{ns_{1/2}}(0)|^2$ and can be related with the energy of the hyperfine interaction of the Rydberg electron with the nucleus, c) $W_{IC}$ decreases rapidly with the increase of $n$ in the range from 10 to 50, and in the range $n\gtrsim 150$ $W_{IC}$ changes as ${\text{Const}}/n^3$ typical for hydrogen-like ions, d) at $n\thickapprox 10$--30, $W_{IC}$ as a function of $l$ has a characteristic "knee" between $l=3$ and $l=4$, i.e. a three order of magnitude decrease of $W_{IC}$ due to the qualitative change in the ratio between the centrifugal and shielding potentials.
