190区超形变带自旋指定的再讨论  

Further Discussion on the Spin-Determination of Superdeformed Bands in the A ～190 Region

作　　者：郭建友[1] 徐辅新[1] 阮图南[1] 

机构地区：[1]安徽大学物理系

出　　处：《高能物理与核物理》2001年第6期514-520,共7页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金! ( 1 96771 0 2 ;1 97750 4 4和 1 9991 4 80 ) ;高等学校博士学科点专项科研基金! ( 970 3 580 7) ;北京正负电子

摘　　要：利用两类转动惯量随转动频率的变化及其相互关系 ,对 1 90区Bohr Mottelson的两参数、三参数和四参数I(I + 1 )展开公式指定自旋不一致的 2 7条超形变带进行分析 ,发现其中 1 8条超形变带 ,它们的带首自旋I0 能够从两类转动惯量随转动频率的变化及其相互关系中可靠地定出 .192　Hg(2 )等发生带交叉的超形变带 ,它们的带首自旋也可通过分析带交叉以前、两类转动惯量随转动频率的变化及其相互关系定出 .The 27 superdeformed bands, whose spin determinations aren't in agreement with two parameter, three parameter and four parameter I(I+1) expansions, are analyzed. The results show that the angular momenta of 18 superdeformed bands can be determined by comparison with the variation of the kinematic and dynamic moments of inertia with rotational frequency and their mutual relation. The angular momenta of superdeformed bands like 192 Hg(2), which have bands cross, can also determined by analyzing the spectra before bands cross and by comparison with the variation of the kinematic and dynamic moments of inertia with rotational frequency and their mutual relation.

关 键 词：超形变带 转动惯量 自旋指定 带首自旋 转动频率 

分 类 号：O571[理学—粒子物理与原子核物理]