The predictions of the charm structure function exponents behaviour at low x in deep inelastic scattering
High Energy Physics - Phenomenology
2014-02-04 v1
Abstract
We use the hard (Lipatov) pomeron for the low-x gluon distribution and provide a compact formula for the ratio that is useful to extract the charm structure function from the reduced charm cross-section, in particular at DESY HERA. Our results show that this ratio is independent of x and independent of the DGLAP evolution of the gluon PDF. As a result, we show that the charm structure function and the reduced charm cross-section exponents do not have the same behaviour at very low x. This difference is independent of the input gluon distribution functions and predicts the non-linear effects and some evidence for shadowing and antishadowing at HERA and RHIC.
Keywords
Cite
@article{arxiv.1402.0165,
title = {The predictions of the charm structure function exponents behaviour at low x in deep inelastic scattering},
author = {G. R. Boroun and B. Rezaei},
journal= {arXiv preprint arXiv:1402.0165},
year = {2014}
}
Comments
6 pages,4 figures