利用投影SD对壳模型讨论了偶偶Ba核低激发态的集体性质.结果发现在该模型下,利用一个仅含有三个参数的哈密顿量,可以很好地再现偶偶Ba核低激发谱的集体性质.
Projected SD-pair shell model was applied to study the even-even Ba isotopes. The results show that collectivity of low-lying states for these two isotopes can be reproduced approximately with a three parameters Hamiltonian.