Search for the scalar a0 and f0 mesons in the reactions e+e-→γπ0π0(η)

It is shown that the reactions e+e-→γπ0π0(η) give a good chance for observing the scalar a0 and f0 mesons. In the photon energy region less than 100 MeV the vector meson contributions e+e-→V0→π0V'0→γπ0π0(η) are negligible in comparison with the scalar meson e+e-→φ →γf0(a0)→γπ0π0(η) for B(φ→γf0(a0)→γπ0π0(η)) greater than 5x10-6 (10-5). Using the two-channel treatment of the ππ scattering the predictions for B(φ→γ(f0+σ)→γππ) are derived. The four-quark model, the model of the K bar K molecule, and the s bar s model of scalar f0 and a0 mesons are discussed. copyright 1997 The American Physical Society