Speaker
Description
The high energy (Regge) limit provides a playground for understanding all loop structures of scattering amplitudes, and plays an important role in the description of many phenomenologically relevant cross-sections. While well understood in the planar limit, the structure of non-planar corrections introduces many fascinating complexities, for which a general organizing principle is still lacking. In this talk, I discuss the structure of multi-reggeon exchanges in the context of the effective field theory for forward scattering (Glauber SCET), and their factorization into collinear operators and soft operators, providing a clear organization for non-planar terms. I then discuss the solutions of the rapidity RG evolutions in different color channels.