Conformal string operators and evolution of skewed parton distributions Original Research Article

We have investigated skewed parton distributions in coordinate space. We found that their evolution can be described in a simple manner in terms of non-local, conformal operators introduced by Balitsky and Braun. The resulting formula is given by a Neumann series expansion. Its structure resembles, for all values of the asymmetry parameter, the well-known solution of the ERBL equation in momentum space. Performing aFourier transformation we have reproduced known results for the evolution of momentum-space distributions.