“全同”超形变核转动带的量子群U_(qp)(u_2)模型的理论分析  

Theoretical Analysis of an Uqp(u2) Model for the CongruentSuperdeformed rotational Bands

作　　者：张新明[1,2,3] 周焕强[1,2,3] 贺劲松 

机构地区：[1]曲靖师范高等专科学校物理系 [2]重庆大学应用物理系 [3]渝州大学物理系

出　　处：《高能物理与核物理》1998年第9期803-811,共9页High Energy Physics and Nuclear Physics

摘　　要：利用量子群Ｕｑｐ（ｕ２）模型计算了“１９１－１９２－１９３－１９４Ｈｇ超形变（ＳＤ）带的γ跃迁能Ｅγ，运动学转动惯量Ｊ（１）和动力学转动惯量Ｊ（２），顺排角动量之差（ｉ＝（Ｊ（１）（１９１－１９２－１９３－１９４Ｈｇ）－Ｊ（１）（１９２Ｈｇ））），并与实验值进行比较得到了满意的结果，此外，还利用Ｕｑｐ（ｕ２）模型的形变参量与核软度的关系式，计算出各ＳＤ带的核软度参数σ１与唯象分析给出的组态结构进行了比较分析。Superdeformed rotational bands in 191-192-193-194Hg are analyzed by means of the Uqp(u2) model. An overall and excellent agreement between the calculated and observed spectra Eγ kinematic moment of inertia J(1) and dynamic moment of inertia J(2), the aligned angular momentum (i =(J(1)(191-193-194Hg) - J(1)(192Hg))) is obtained Further more, the nuclear softness in 191-192-193-194Hg are calculated by means of the Uqp (u2) model and drawn into the nuclear. configuration analysis.

关 键 词：超形变转动带 转动惯量 核软度 量子群模型 

分 类 号：O571.211[理学—粒子物理与原子核物理]