Scalar meson exchange in phi->P0P0gamma decays

Abstract

The scalar meson exchange in $\phi\to P^0 P^0\gamma$ decays is discussed in a chiral invariant framework where the scalar meson poles are incorporated explicitly. $\phi\to\pi^0\pi^0\gamma$ and $\phi\to\pi^0\eta\gamma$ are in agreement with recent experimental data and can be used to extract valuable information on the properties of $f_{0}(980)$ and $a_{0}(980)$ respectively. $\phi\to K^0\bar K^0\gamma$ is shown not to pose a background problem for testing CP violation at Da$\Phi$ne. The ratio $\phi\to f_{0}\gamma/a_{0}\gamma$ is also predicted.