Radiative Meson Decays in a Quark-Oscillator Model

One- and two-photon decays of meson resonances are calculated in a quark-oscillator model using a nonrelativistic interaction Hamiltonian and vector dominance. Harmonic-oscillator wave functions are assumed for $l=0$ and $l=1$ resonances (e.g., π, ρ and A₂, f, respectively). The calculations in general are sensitive to the value of the well-width parameter α². Good agreement with experiment is obtained for decays of low-lying states (such as π⁰ and η) and for the decay ${A}₂^{±{}}{→}{{π}}^{±{}}+{γ}[{Γ} (predicted)=0.4{-}0.6 MeV]$. The calculated width for the decay $f(1260){→}{γ}{γ}$ is less than that predicted by Kunzst et al., on the basis of a phenomenological Lagrangian by a factor of 3 or more.