^(16)O核低激发态结构的对称性效应  

A Study of the Effect of Symmetries on the Structures of the Low-lying States of Nucleus ^(16)O

作　　者：李训贵[1] 

机构地区：[1]广州师范学院物理系,广东广州510405

出　　处：《广州师院学报（自然科学版）》2000年第11期22-30,共9页

基　　金：国家教委博士点基金资助项目 !( 1 9970 1 94 1 1 70 5) ;广州市高校中青年学术骨干专项基金资助项目!( 1 9970 4 )

摘　　要：研究了一个四全同玻色子系统的模型理论 ,用此模型和少体方法 ,在两种不同的α粒子相互作用势下 ,计算了四α粒子系统的低激发态 Lπi(L =0 ,1 ,2 ,π=± 1 ,i =1 ,2 ) 的能谱。发现低激发态能谱和结构的主要特征决定于量子力学的内秉对称性 ,从而揭示了1 6O核低激发态结构特征的本质和起源 ,并由此得出了1This paper constructed a theoretical model for a four_identical_boson system. With this model and few_body methods, we calculated the energy spectra of low_lying states L π i(L=0,1,2,π=±1,i=1,2) for a four α particle system. What′s more, the origin of the structural characters of low_lying states of nucleus 16 O has been uncovered, therefore the law of classifying the low_lying states of nucleus 16 O has been found by investigating the decisive effect of quantum mechanics symmetries on the system.

关 键 词：四体系统 能谱 对称性 氧16核 低激发态 

分 类 号：O571.251[理学—粒子物理与原子核物理] O413[理学—物理]