摘要
讨论了对称性导致的格林函数间的关系——横向及通常的纵向Ward-Takahashi关系.自洽求解这组WT关系,导出了非微扰的费米子-玻色子项角函数.应用非微扰顶角函数,得到了自洽截断的对传播子封闭的Dyson-Schwinger方程,构成了研究强子物理的自洽非微扰途径.
We discuss the symmetry relations among Green's functions, i.e., the transverse and the normal (longitudinal) Ward-Takahashi relations. Solving consistently this set of WT relations, we obtain the nonperturbative fermion-boson vertex function, which leads to consistently truncated and closed Dyson-Schwinger equations for the propagators up to the quantum anomaly, thus providing the consistent nonperturbative approach of studying hadronic physics.
出处
《高能物理与核物理》
CSCD
北大核心
2002年第z1期73-76,共4页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金资助
