Speaker
Description
Exclusive processes in high energy collisions can be described in terms of either a collinear factorization or a dipole approach. While these approaches have a common limit, they also differ in many ways. For example one can consider it more important to resum large logarithms of either transverse or longitudinal momenta. There can also be different views about whether the dominant transverse size of the interacting partonic configuration is in the strong or weak coupling regime, and whether its interaction with the target involves interactions with more than two gluons. In the latter case one has an interpretation of the scattering process in terms of gluon saturation. In addition to these aspects, this talk will also discuss using exclusive processes to understand the transverse geometry of gluons in the target.
