Radiative decays $J/\Psi \to {\eta }^{(\prime )}\gamma$ in perturbative QCD

Ya-Dong Yang

With the recent investigations of $g^{\ast }{g}^{\ast }-{\eta }^{(\prime )}$ transition form factor and $\eta -{\eta }^{\prime }$ mixing scheme, we present an updated study of the radiative decays $J/Ψ\…