Next-to-leading and Resummed BFKL Evolution with Saturation Boundary.

David Zaslavsky
We have simulated BFKL evolution using collinear resummation to address the instabilities arising from the NLL kernel, and a saturation boundary instead of the nonlinear term to tame the growth of the solution at low momenta. Our results establish that the saturation boundary alone does not cure the NLL instabilities, but with the resummation, it allows us to extract the rapidity dependence of the saturation scale and demonstrates some possibly important pre-asymptotic behavior.