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Tb和Dy同位素超形变带的Harris公式分析
引用本文:郭建友,李伟,徐辅新. Tb和Dy同位素超形变带的Harris公式分析[J]. 安徽大学学报(自然科学版), 2001, 25(4): 42-49
作者姓名:郭建友  李伟  徐辅新
作者单位:安徽大学物理系 安徽合肥230039(郭建友,李伟),安徽大学物理系 安徽合肥230039(徐辅新)
基金项目:国家自然科学基金;19991480;
摘    要:利用Harris公式对 15 0区Tb和Dy同位素 37条超形变带运动学转动惯量的实验提取值进行了拟合 ,发现其中 2 0条超形变带 ,不仅 J(1 ) 的计算值与其实验提取值惊人地符合 ,而且由J(1 ) 拟合所定出的参数算出的动力学转动惯量J(2 ) 也与其实验提取值符合得很好 ,表明这些超形变带 ,用Harris公式指定其能级自旋是合适的 ,特别是1 52 Dy(1)带 ,由Harris公式指定的带首自旋是 2 6 ,更符合物理事实

关 键 词:Harris公式  转动惯量  自旋指定
文章编号:1000-2162(2001)04-0042-08

Analysis of superdeformed bands in Tb and Dy isotopes by using Harris formula
GUO Jian-you,LI Wei,XU Fu-xin. Analysis of superdeformed bands in Tb and Dy isotopes by using Harris formula[J]. Journal of Anhui University(Natural Sciences), 2001, 25(4): 42-49
Authors:GUO Jian-you  LI Wei  XU Fu-xin
Abstract:The superdeformed bands in Tb and Dy isotopes are analyzed by using the kinematic moments of inertia formula J (1) =2α+43βω 2+65γω 4 in order to extract level spin. The results show that the calculated J (1) of 20 superdeformed bands are agreement excellently with that of extracted from expression  2(2I-1)/E γ(I). With the parameters determined by J (1) fitting, the calculated values of dynamic moments of inertia J (2) are also agreement with that of extracted from experiments. All of these show our assignment of the level spins is reliable. In particular, the spin of the lowest level of the first discovered high-spin SD band 152 Dy(1) predicted to be I 0=26 is more proper.
Keywords:harris formula  moments of inertia  spin determination
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