Radiative decays involving f0(980) and a0(980) and mixing between low and high mass scalar mesons

We analyze the experimental data for φ->f0(980)γ, φ->a0(980)γ, f0(980)->γγ and a0(980)->γγ decay widths in a framework where f0(980) and a0(980) are assumed to be mainly qqq-bar q-bar low mass scalar mesons and mixed with qq-bar high mass scalar mesons. Applied the vector meson dominance model (VDM), these decays amplitudes are expressed by coupling parameters B describing the S (qqq-bar q-bar scalar meson)-V (vector meson)-V (vector meson) coupling and B' describing the S' (qq-bar scalar meson)-V-V coupling. Adopting the magnitudes for B and B' as 3∼2.8 GeV-1 and ∼12 GeV-1, respectively, the mixing angle between a0(980) and a0(1450) as ∼9o, and the mixing parameter λ01 causing the mixing between I=0 qqq-bar q-bar state and qq-bar state as ∼0.24 GeV2, we can interpret these experimental data, consistently