The $\rho {\gamma }^{\ast }\to \pi (\rho )$ transition form factors in the Perturbative QCD factorization approach

Ya-Lan Zhang, Shan Cheng, Jun Hua +1

In this paper, we studied the $\rho {\gamma }^{\ast }\to \pi$ and $\rho {\gamma }^{\ast }\to \rho$ transition processes and made the calculations for the $\rho \pi$ transition form factor $Q^4{F}_{\rho \pi }(Q^2)$ and the $\rho$ meson el…