Resolved photon and multi-component model for γ*p and γ* γ* scattering at high energies

الأصل · EN

We generalize our previous model for γ* p scattering to γγ scattering. In the latter case the number of components naturally grows. When using the model parameters from our previous γ* p analysis the model cross section for γγ scattering is larger than the corresponding LEP2 experimental data by more than a factor of two. However, performing a new simultaneous fit to γ* p and γγ total cross section we can 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.