Saturation and Traveling waves
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
High parton density effects with energy obey non-linear QCD evolution equations for which exact solutions are not known. The mathematical class to which the non-linear Balitsky-Kovchegov equation belongs is identified, proving the existence of asymptotic in energy traveling wave solutions which are ``universal'' i.e. independent of the initial conditions and of the precise form of the non-linearities. This has an direct impact on geometrical scaling and the diffusive transition to saturation, which is shown to be ``normal'' for constant QCD coupling and ``abnormal'' for running coupling.
Cite
@article{arxiv.hep-ph/0407115,
title = {Saturation and Traveling waves},
author = {R. Peschanski},
journal= {arXiv preprint arXiv:hep-ph/0407115},
year = {2007}
}
Comments
4 pages, 2 figures, presented at the DIS 2004 Workshop, Strbske Pleso, Slovakia, 14-18 April