Weak interaction 低能四Fem子普适弱作用(VA)型理论 →中间玻色子W(100GeV) Nambo Spontaneous symmetry breaking Quark model > Quark current current algebra Cabibbo angle Glashow SU(2)xU(1)model GIM mechanism introducing quarkWeak interaction • 低能四Femi子普适弱作用(V-A)型理论 →中间玻色子W(100GeV) • Nambo Spontanteous symmetry breaking • Quark model→Quark current, current algebra • Cabibbo angle, Glashow SU(2)xU(1) model • GIM mechanism→introducing c quark