AI 中文总结
本研究针对价中子处于g9/2壳层的211Pb、213Pb、215Pb，对比相关能级分裂与态性质，讨论未发现的J=3/2+态及超出g9/2的组态计算，明确J=21/2+态为同质异能态。
AI 中文摘要
我们首先考虑价中子处于g9/2壳层的铅同位素，重点对比中子数n=3的211Pb、n=5的213Pb（处于壳层中部）和n=7的215Pb。鉴于J=21/2+和J=3/2+态对于n=3和n=5均为纯seniority v=3态，我们对比了不同相互作用下的能级分裂E(J=21/2+)-E(J=3/2+)。随后讨论n=3和n=5中最低J=3/2+态的位置，尽管该态尚未在实验中发现，也考虑了超出g9/2的组态计算。最后指出J=21/2+态对于n=3和n=5均为同质异能态。
英文摘要
We first consider lead isotopes with valence neutrons in the g9/2shell. We especially compare 211Pb (n=3), 213Pb (n=5) and 215Pb (n=7), 213Pb being at mid-shell. Motivated by the fact the J = 21/2+ and J =3/2+ states are pure seniority v=3 states for both n=3 and n=5, we compare the energy splitting E(J=21/2+)-E(J=3/2+) for various interactions. We then discuss the position of the lowest J=3/2+ state in both n=3 and n=5, although, this state has not been found experimentally. Calculations with configurations beyond g9/2 are also considered. We next address the fact that the J=21/2+ state is isomeric for both n=3 and n=5.
