一个描述轴对称、过渡核yrast带的新公式及核γ形变的一个特征量

A New Formula for the Spectra of Axial Symmetric and Transition Nuclei and a Quantity to Identify the NuclearγDeformation

详细地分析了一个特殊有效势的解析极限解．指出对应于ｙｒａｓｔ线的能谱，无论是轴对称、三轴形变还是γ不稳，均可用统一的公式描述．并可通过此公式来鉴定核的γ形变．作为例子，拟合了很多实际核的ｙｒａｓｔ带，并鉴定了各带的γ形变程度．

The analytical limits of a speacial potential of the Bohr Hamiltonian are discussed in detail.A new formula for the axial symmetric,triakial deformed and theγ-soft nuclei is presented.The nuclearγdeformation can be identified with this formula.The calculations of some nuclear yrast lines seproduce the experiment al results very Well,and the degree of the nuclearγdeformation is obtained.