$K\to 2\pi$ Decay in the Nambu-Jona-Lasinio Model

M. Takizawa, T. Inoue, M. Oka

We study the $K\to 2\pi$ decays using the $U_L(3)\times U_R(3)$ version of the Nambu-Jona-Lasinio model with the effective $\Delta S=1$ nonleptonic weak interaction. The $\Delta I=3/2$…