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

Abstract

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

Comments: 12 Pages in REVTEX, 5 Figures, to be published in Phys.Rev.D