可能的原子核形状及硬度演化性质:基于能量面计算的系统分析(英文)
摘要
基于（β2，γ，β4）形变空间下对-形变自洽的原子核能量面计算方法，系统研究分析了50 Nuclear shape and stiffness evolutions in even-even nuclei with 50 < Z < 82 are systematically analyzed in terms of the pairing-deformation self-consistent nuclear-energy-surface calculation in (β2,γ,β4) deformation space. Calculated equilibrium deformations are presented and compared with other theoretical predictions and available experimental data. The stiffness parameters Cβ and Cγ respectively related to quadrupole deformations β2 and γ are determined from the deformation energy curves, which are consistent with the observed low-lying β and/or γ bands. The stiffness evolution under rotation along the yrast line is briefly discussed, e.g., on the basis of the centipidelike E-GOS curves, showing an unnegligible vibration effect.