QCD factorizations in gamma* gamma* --> rho_L^0 rho_L^0

TL;DR

This paper explores QCD factorization properties in rho meson pair production via gamma* gamma* collisions, highlighting its potential to probe GDA, TDA, and BFKL effects at different energy regimes.

Contribution

It analyzes the process of rho meson pair electroproduction to study QCD factorization involving GDA and TDA, and its potential to investigate BFKL resummation effects.

Findings

Potential to explore QCD factorization with GDAs and TDAs.

Probing BFKL resummation effects at high energies.

Relevance for future collider experiments.

Abstract

The exclusive reaction of rho meson pair electroproduction in gamma*gamma* collisions is a nice place to study various dynamics and factorization properties in the perturbative sector of QCD. At low energy (quarks dominance), this process can be considered as a way to explore QCD factorizations involving generalized distribution amplitudes (GDA) and transition distribution amplitudes (TDA), and, in the Regge limit of QCD (gluons dominance), it seems to offer a promising probe of the BFKL resummation effects which could be studied at the next international linear collider (ILC).