Description of the process $e^{+}{e}^{-}\to {\pi }^0{\pi }^0\gamma$ in the extended NJL model

M. K. Volkov, A. A. Pivovarov, K. Nurlan

The cross section of the process $e^{+}{e}^{-}\to {\pi }^0{\pi }^0\gamma$ is calculated in the extended NJL quark model. The vector channel with the intermediate $\rho$, $\omega$, ${\rho }^{\prime }$ and ${\omega }^{\prime }$ mesons is co…