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在低能核结构研究中，电四极跃迁的Ｂ（Ｅ２，）值和基态带的态与态能量比值Ｒ常被用来衡量核的集体运动属性．本文通过标准的位能面计算，系统地探讨了这些量与核形变参数间的关系．指出Ｂ（Ｅ２，）值主要取决于核的平衡（静态）形变，目前的Ｎｉｌｓｓｏｎ－Ｓｔｒｕｔｉｎｓｋｙ－ＢＣＳ方法可以良好地求得从Ｚ＝３０到锕系区偶－偶核的合理的形变值，而能量比值Ｒ则反映的是位能面的整体结构，例如硬度及非谐和性等．
In the study of low-energy nuclear structures, the B (E2) value of the electric quadrupole transition and the ratio of the state-state energy R of the ground-state band are often used to measure the collective motion properties of the nuclei. In this paper, the relationship between these quantities and the parameters of core deformation is discussed systematically through the standard calculation of potential energy surface. It is pointed out that the value of B (E2,) mainly depends on the equilibrium (static) deformation of the nucleus. The current Nilsson-Strutinsky-BCS method can well obtain the reasonable deformation values from Z = 30 to the even- The energy ratio R reflects the overall structure of the energy surface, such as hardness and non-harmonic.