The $\omega\sigma\gamma$-vertex in light cone QCD sum rules
  We investigate the $\omega\sigma\gamma$-vertex and estimate the coupling constant g$_{\omega\sigma\gamma}$ in the framework of the light cone QCD sum rules. We compare our result with the values of this coupling constant deduced from a phenomenological analysis of $\omega\to\pi\pi\gamma$ decays. 
A. Gokalp, O. Yilmaz