2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/103455We generalize our previous model for $γ^* p$ scattering to $γγ$ scattering. Performing a new simultaneous fit to $γ^* p$ and $γγ$ total cross section we find an optimal set of parameters to describe both processes. We propose new measures of factorization breaking for $γ^* γ^*$ collisions and present results for our new model.a talk at international conference PHOTON2005, Warsaw, August/September 2005High Energy Physics - PhenomenologyResolved photon and multi-component model for $γ^*$p and $γ^* γ^*$ total cross sectiontext