APPLICATION OF CURRENT ALGEBRA TO THE FREE-QUARK FIELD THEORY
Zhang De-xing · Journal of Guangxi Normal University · 2001
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.