The gauge model of quark--meson interactions and the Higgs status of   scalar mesons
  Electromagnetic and strong hadron processes at low energies are considered in the renormalizable model with the spontaneously broken $U_0(1)\times U(1)\times SU(2)$ gauge symmetry. Calculated radiative widths of vector mesons and effective couplings $g_{VVS}$ agree with the experimental data. Residual Higgs degrees of freedom are associated with scalar states $a_0(980)$ and $f_0(980)$ with the degeneration in masses. Two-gamma decays of $\pi^0-$ and $\sigma-$ mesons are analyzed in detail. To provide an "infrared confinement" a cutoff procedure has been also used in calculations. 
V. Beylin, V. Kuksa, G. Vereshkov
hep-ph