摘要: 本研究通过壳模型计算研究了N=51的同中子素⁹¹Zr、⁹³Mo和⁹⁵Ru中高自旋晕态21/2⁺的同核异能态现象。计算发现，低角动量的p_1/2轨道上的质子是仅在⁹³Mo中存在21/2⁺晕阱的主要原因。同时，本工作还研究了N=52的同中子素⁹²Zr、⁹⁴Mo和⁹⁶Ru中10₁⁺-12₁⁺能级结构的系统性，发现⁹⁴Mo中的10₁⁺-12₁⁺能级间隙相对最小，考虑到与⁹³Mo的17/2₁⁺-21/2₁⁺能级相似的组态，这一结果为⁹³Mo中出现21/2⁺晕阱提供了补充性的论证。


Isomerism of the high-spin yrast 21/2⁺ states of the N=51 isotones ⁹¹Zr, ⁹³Mo and ⁹⁵Ru has been investigated using the shell model calculations. It is found that the low-j πp_1/2 is responsible for the only yrast trap in ⁹³Mo. In addition, the relatively smaller 10₁⁺-12₁⁺ level spacing in ⁹⁴Mo has been found by investigating the systematics of the 10₁⁺-12₁⁺ level structures in the N=52 isotones ⁹²Zr, ⁹⁴Mo and ⁹⁶Ru. This result provides a supplementary argument to the origin of the 21/2⁺ yrast trap in ⁹³Mo from the viewpoint of the similarity between the configurations of 10₁⁺-12₁⁺ states in ⁹⁴Mo and those of 17/2₁⁺-21/2₁⁺ states in ⁹³Mo.