The $\varphi a_0\gamma$- and $\varphi \sigma \gamma$-vertices in light cone QCD

Abstract

We study $\varphi a_0\gamma$- and $\varphi \sigma \gamma$-vertices in the framework of the light cone QCD sum rules and we estimate the coupling constants g${}_{\varphi a_0\gamma }$ and g${}_{\varphi \sigma \gamma }$ utilizing $\omega \varphi$-mixing. We compare our results with the previous estimations of these coupling constants in the literature obtained from phenomenological considerations.

Comments: 8 pages, RevTex, 2 figures