A=130区缺中子核^(122)Cs与^(134)Ce高自旋态研究

High Spin-states of ^(122)Cs and ^(134)Ce in A=130 Neutron-deficient Region

通过重离子核反应与在束γ谱的实验技术,对A=130缺中子核区122Cs与134Ce核的高自旋态进行了研究,所用核反应分别为107Ag(19F,1p3n)与122Sn(16O,4n).实验结果扩展了122Cs与134Ce的能级纲图.在122Cs中发现可能是属于手征二重带的结构,而在134Ce核的高自旋态结构中呈现出重要的具有不同γ形变的形状共存特性.

Through heavy ion nuclear reaction and in-beam γ-ray spectroscopy technique, the high spin states of neutron-deficient^(122)Cs and^(134)Ce nuclei in A=130 region have been studied. The^(107)Ag(^(19)F, 1p3n) and^(122)Sn(^(16)O, 4n) reactions were used. The previous level schemes of^(122)Cs and^(134)Ce have been extended. Possible chiral doublet bands in^(122)Cs have been observed and a shape coexistence with different γ values in^(134)Ce are suggested.