The doubly virtual $({\pi }^0,\eta ,{\eta }^{\prime })\to {\gamma }^{\ast }{\gamma }^{\ast }$ transition form factors in the light-front quark model

Ho-Meoyng Choi, Hui-Young Ryu, Chueng-Ryong Ji

We report our investigation on the doubly virtual TFFs $F_{\mathrm{P}{\gamma }^{\ast }}(Q_1^2,Q_2^2)$ for the $\mathrm{P}\to {\gamma }^{\ast }(q_1){\gamma }^{\ast }(q_2)(\mathrm{P}={\pi }^0,\eta ,{\eta }^{\prime })$ transitions using the light-front qua…