The energy dependence of the saturation momentum Original Research Article

We study BFKL evolution and, in particular, the energy dependence of the saturation momentum in the presence of saturation boundaries limiting the region of linear BFKL evolution. In the case of fixed coupling evolution we confirm the previously found exponential term in Qs(Y) and determine the prefactor Y and α dependences. In the running coupling case we find Y1/6 corrections to the Y1/2 exponential behavior previously known. Geometrical scaling of the scattering amplitude is valid in a wide range of momenta for fixed coupling evolution and in a more restricted region for running coupling evolution.