The perturbative QCD factorization of $\rho {\gamma }^{\star }\to \rho$

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

In this paper we firstly demonstrate step by step that the factorization hypothesis is valid at the next-to-leading order (NLO) for the exclusive process $\rho {\gamma }^{\star }\to \rho$ by empl…