The Balitsky–Kovchegov equation in full momentum space Original Research Article

We analyse the Balitsky–Kovchegov (BK) saturation equation in momentum space and solve it numerically. We confirm that, in the limit where the transverse momentum of the incident particle k is much bigger than the momentum transfer q, the equation admits traveling-wave solutions. We extract the q dependence of the saturation scale Qs(Y) and verify that Qs(Y=cste) scales as max(q,QT), where QT is the scale caracterizing the target.