We review the results of our calculations for the energy spectrum and branching ratios ofV0→P0P0′&ggr; in the context of aU(3) ×U(3) linear sigma model which includes ’t Hooft interaction. The corresponding amplitudes reduce to theO(p4) predictions of CHPT for these processes in the limit of heavy scalars (or equivalently in the low energy region). In this sense our approach extend to the resonance region theO(p4) predictions of CHPT in a chiral invariant way. The measured energy spectrum and branching ratios are well described in this formalism. In particular, the negative interference shown by the data aroundm&pgr;&pgr;= 500MeVin &fgr; → &pgr;0&pgr;0&ggr; arises in a natural way in this framework. © 2003 American Institute of Physics