【摘 要】
：
在中国原子能科学研究院H-13串列加速器上,通过重离子核反应122Sn(16O,4n)对A=130缺中子核区的134Ce核的高自旋态进行了研究,建立了134Ce的新的能级纲图,最高自旋态扩展到22(
【机 构】
：
清华大学物理系,中国原子能科学研究院
论文部分内容阅读
在中国原子能科学研究院H-13串列加速器上,通过重离子核反应122Sn(16O,4n)对A=130缺中子核区的134Ce核的高自旋态进行了研究,建立了134Ce的新的能级纲图,最高自旋态扩展到22(h). 然而实验结果与近期发表的134Ce核的高自旋态结果不同,所谓在134Ce核中存在的磁转动带结构不能被实验证实. 对实验结果的分析表明,134Ce核的高自旋态结构呈现出重要的形状共存特性: 在基带以上的回弯处的10+态起源于两个中子组态,基于此10+态的转动带具有γ≈-60°的扁椭形变; 另一个10+同质异能态为yrast陷阱,也起源于两中子组态,为具有γ≈-120°的长椭形状; 而由两个signature伙伴带组成的强耦合带,则起源于h11/2与g7/2质子组态,为具有γ≈0°的长椭形变带.
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