ω-ρ mixing and the ω→ππγ decay

We reexamine the ω→ π⁰ π⁰ γ decay, adding the effect of ω-ρ mixing to the amplitude calculated with the aid of chiral perturbation theory and vector meson dominance. We predict the neutral decay to occur with a width of Γ(ω→ π⁰ π⁰ γ) = (390±96) eV and also analyze the effect of the ω-ρ mixing on the Γ(ω → π⁰ π⁰ γ)/Γ(ω→ π⁺ π⁺ γ) ratio. Several remarks on the effect of ω-ρ mixing on certain radiative decays of vector mesons are presented.