Renormalization group improved photon impact factors and the high energy virtual photon scattering

Dimitri Colferai, Wanchen Li, Anna M. Stasto

We perform the renormalization group improved collinear resummation of the photon-gluon impact factors. We construct the resummed cross section for virtual photon-photon (${\gamma }^{\ast }{\gamma }^{\ast }$)…