gVS gamma coupling constant in light cone QCD


AYDIN C. , AYDIN S. H. , Keskin F., YILMAZ A. H.

PHYSICAL REVIEW D, vol.84, no.9, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 84 Issue: 9
  • Publication Date: 2011
  • Doi Number: 10.1103/physrevd.84.096010
  • Title of Journal : PHYSICAL REVIEW D

Abstract

We recalculated the coupling constants g (phi sigma gamma), g (phi a0 gamma), g (omega sigma gamma), g (a0 omega gamma), g (rho sigma gamma), and g a(0 rho gamma) by taking into account the contributions of the three-particle up to twist-4 distribution amplitudes of the photon involving quark-gluon and quark-anti-quark-photon fields in the light-cone sum-rule framework.