In this paper we present an analysis of the recent high-statistical KLOE data on the $\overrightarrow{\phi }\eta {\pi }^0\gamma$ decay. This decay mainly goes through the $a_0\gamma$ intermediate state. The results obtained differ from those of previous fits: the data prefer a high $a_0$ mass and a quite large $a_0$ coupling to the $K\overline{K}.$

• Received 13 December 2002

DOI:https://doi.org/10.1103/PhysRevD.68.014006