https://doi.org/10.1140/epjc/s2005-02449-8
Theoretical Physics
Saturation momentum at fixed and running QCD coupling
Laboratoire de Physique Théorique, Université Paris XI, Orsay, and The Niels Bohr Institute, Copenhagen, Denmark, France
* e-mail: dietrich@nbi.dk
Received:
20
July
2005
Revised:
29
September
2005
Published online:
13
December
2005
A relationship linking the saturation momentum in the case of fixed and running QCD coupling, respectively, is derived from the Balitsky-Kovchegov equation. It relies on the linear instability of the evolution equation in the dilute regime. The relationship can also be derived for the Balitsky-Kovchegov equation with a cutoff accounting for low-density effects.
© Springer-Verlag, 2006
