Gluon mass from charmonium radiative decay and its impact on the hybrid meson properties

Azzeddine Benhamida, Lahouari Semlala

We study the photon spectrum in the radiative decays of the charmonium $\frac{1}{\Gamma }\frac{d\Gamma (J/\psi \to \gamma gg)}{dz}$ as an excellent scene for hunting the exotic mesons (hybrids $q\b…