【摘 要】
：
通过重离子核反应与在束γ谱的实验技术,对A=130缺中子核区的双奇核136La的高自旋态进行了研究,所用核反应为130Te(11B,5n).实验结果扩展了136La的能级纲图,包括3个集体转动
【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
通过重离子核反应与在束γ谱的实验技术,对A=130缺中子核区的双奇核136La的高自旋态进行了研究,所用核反应为130Te(11B,5n).实验结果扩展了136La的能级纲图,包括3个集体转动带,最高自旋态达20h.对于πh11/2(○)γh11/2带,观测到了旋称反转与集体回弯现象.通过系统学比较,对旋称反转特性进行了讨论.由推转壳模型的计算指出,此集体回弯是由一对中子的角动量顺排引起的.另外两个集体带为具有γ≈-60.的扁椭形变带,其可能的组态为:πh11/2(○ )γg7/2h211/2与πg7/2(○ )γg27/2d5/2h211/2.
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