Title: "The breakpoint region in processes involving GPDs"
Abstract: I consider the "breakpoint" (x -> xi) region in DVCS, DVMP and exclusive photoproduction of a pi0gamma pair with large invariant mass in the framework of the CSS formalism. The corresponding subtleties in the factorization proofs of DVCS and DVMP are discussed. The exclusive photoproduction of a pi0gamma pair with large invariant mass (and similar 2 -> 3 processes) have recently been proposed to access the x-dependence of GPDs beyond the moment-type information. I show that collinear factorization is broken by a Glauber contribution in the gluon channel. Finally, I consider the resummation of breakpoint logarithms in DVCS.