用孤粒子袋模型计算强子的静态物理性质  

STATIC PHYSICAL PROPORTIES OF HADRONS CALCULATED IN THE SOLITON BAG MODEL

作　　者：高道国[1] 

机构地区：[1]四川大学

出　　处：《高能物理与核物理》1989年第1期20-28,共9页High Energy Physics and Nuclear Physics

摘　　要：本文在平均场近似下,对孤粒子袋模型作了较详细的数值解,计算了强子静态物理性质.特点是考虑了夸克质量和质心修正后,明显改善g_A/g_V值,并且,强子质量、均方根电荷半径和磁矩等均与实验值基本相符.初步导出d夸克和u夸克间的质量差.In this paper, the Mean-Field Approximation is applied to the soliton bag model to calculate static physical proporties of hadrons numerically. After taking account of the quark masses and the corrections of the center of mass the g_A/gv value is improved evidently and the hadron mass spectrum, the r.m.s. charge radius and the magnetic moments of the hadrpns are basically in agreement with their experimental values. A preliminary derivation of the mass differencs between the d and u guarks is presented.

关 键 词：孤粒子袋 强子 静态 物理性质 

分 类 号：O572.22[理学—粒子物理与原子核物理]