【摘要】 利用推转壳模型的粒子数守恒方法计算了超形变（ＳＤ）转动带１９２Ｈｇ和１９４Ｈｇ（１，２，３）的带首转动惯量．分析了带首附近的组态结构及带首转动惯量随对力强度的变化．带首转动惯量之差δＪ０对对力强度十分敏感，而对Ｎｉｌｓｓｏｎ能级参数Ｋ、μ及形变参数并不敏感．对力及堵塞效应是造成带首转动惯量差别的主要因素．但与正常形变核相比，对力强度似有较大程度减弱．更多还原

【Abstract】 Using the particle-number conserving(PNC) method for treating the cranked shell model, the bandhead moments of inertia of the superdeformed(SD) bands 192Hg and 194Hg(1,2,3) were calculated. The configuration structures of the SD bands near the bandheads and the mechanism for the variation of bandhead moments of inertia with the pairing interaction strength G were investigated. The analyses show: (1) The difference in the bandhead moments of inertia, δJ0, is sensitive to the pairing interaction strength, but insensitive to the Nilsson parameters K,μ and the deformation. (2)In A ～ 190 region the pairing interaction still plays an important role and the δJ0 is mainly attributed to the blocking effect. (3) The pairing interaction strength in SD nuclei seems much weaker than in normally deformed nuclei.更多还原