Saturation QCD predictions with heavy quarks at HERA
High Energy Physics - Phenomenology
2008-11-26 v1
Abstract
The measurement of the proton structure function at HERA is often seen as a hint for the observation of saturation in high-energy QCD e.g. through the observation of geometric scaling. Accordingly, the dipole picture provides a powerful framework in which the QCD-based saturation models can be confronted to the data. In this paper, we give a parametrisation of proton structure function which is directly constrained by the dynamics of QCD in its high-energy limit and fully includes the heavy quark effects. We obtain a good agreement with the available data. Furthermore, to the contrary of various models in the literature, we do not observe a significant decrease of the saturation momentum due to the heavy quark inclusion.
Cite
@article{arxiv.0705.3672,
title = {Saturation QCD predictions with heavy quarks at HERA},
author = {G. Soyez},
journal= {arXiv preprint arXiv:0705.3672},
year = {2008}
}