gVS gamma coupling constant in light cone QCD


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

PHYSICAL REVIEW D, cilt.84, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

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.