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arXiv · 0705.3672

Saturation QCD predictions with heavy quarks at HERA

G. Soyez
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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.

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G. Soyez. 2007-05-24. Saturation QCD predictions with heavy quarks at HERA. https://doi.org/10.1016/j.physletb.2007.07.076

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