EIBFM模型U(6/4)超对称SO(6)极限的能谱统计(英文)  

Energy Level Statistics in the SO(6) Limit of Super Symmetry U(6/4) in IBFM

作　　者：白洪波[1] 张进富[1] 周先荣[2] 

机构地区：[1]赤峰学院物理系,内蒙古赤峰024001 [2]辽宁师范大学物理系,大连116029

出　　处：《高能物理与核物理》2005年第8期752-756,共5页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金(10265001,10347115);内蒙古教育厅高校科研项目(NJ04116)资助~~

摘　　要：用相互作用玻色子费米子模型(IBFM)计算了奇A核U(6/4)超对称SO(6)极限的理论能谱,对不确定核的最近邻能级间距分布和能谱刚性度进行了研究,并对影响能谱统计特征的因素进行了讨论.结果表明,有限的玻色子数N的大小显著地影响能谱统计.当N接近于真实核的玻色子数时,子群SOBF(5)的作用强度和自旋对能谱统计起重要作用.然而,当N趋于无穷大时,能谱统计总是趋于Poisson分布.The energy levels of the SO（6） limit of super symmetry U（6/4） belonging to odd-A nucleus are calculated with the interacting boson-fermion model. Its emphasis is to study the statistical properties of the nearest neighbor spacing distribution（NSD） and the spectral rigidity （△3）. And the factors that affect the properties of level statistics are also investigated. The calculated results indicate that the finite beson number N effect is prominent. When N has a value close to a realistic one, both the interaction strength of subgroup SO^BF（5） and the spin play an important role in the energy level statistics. However, in the case of N close to infinite, the statistics all tend to be Poisson type.

关 键 词：IBFM模型 相互作用玻色子费米子模型 U(6/4)超对称SO(6)极限 能谱统计 能谱刚性度 能级间距 

分 类 号：O571.2[理学—粒子物理与原子核物理]