期刊论文

中文

华中师范大学学报(自然科学版)

1000-1190

1990

024

2

157-160

10.19603/j.cnki.1000-1190.1990.02.006

本校为第一机构

本文利用鞍点方程研究了具有功力学破缺和普通自发破缺的SU(2)_L(?)SU(2)_Nσ模型,得到了与我们以前工作一致的π介子质量谱,并对π介子获得质量的物理机制进行了讨论。

The chiral SU(2)_L ■ SU(2)_■ σ model with both spontaneous and dynamical breaking is investigated in terms of the saddle point equation. It turns out that π mesons obtain a mass, which accords with our earlier work. The physical mechanism of how π mesons ...