Interference effects in the decay $\overrightarrow{\phi }{\pi }^0{\pi }^0\gamma$ and the coupling constant $g_{\phi \sigma \gamma }$

We study the radiative decay $\overrightarrow{\phi }{\pi }^0{\pi }^0\gamma$ within the framework of a phenomenological approach in which the contributions of $\sigma$ mesons, $\rho$ mesons, and $f_0$ mesons are considered. We analyze the interference effects between different contributions and, utilizing the experimental branching ratio for this decay, we estimate the coupling constant $g_{\phi \sigma \gamma }.$