流代数在自由夸克场论中的应用

APPLICATION OF CURRENT ALGEBRA TO THE FREE-QUARK FIELD THEORY

流代数的基本概念是各种“流”算子的矩阵元在物理实验中是可以测量的 .物理流在互相交换下有与场论的一个简单类型的矢量流相同的代数性质 .

The essential idea of current algebra is that matrix elements of various “current” operators are measurable in physical experiments.The physical currents have the same algebraic properties under commutation as the vector currents of a simple class of field theories.By applying current algebra sum rules and introducing infinite momentum,problems of the free-quark field theory can be solved.