Scaling Violations in the $Q^2$ Logarithmic Derivative of $F_2$

Details Scaling Violations in the $Q^2$ Logarithmic Derivative of $F_2$ Scaling Violations in the $Q^2$ Logarithmic Derivative of $F_2$

2000-11-21

arxiv.org/abs/hep-ph/0011257v1

Phys.Lett. B500 (2001) 87-98

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, & figs in eps files

Scientific paper

10.1016/S0370-2693(01)00066-1

We examine the latest HERA experimental measurements of the $Q^2$ logarithmic derivative of the proton structure function. We analyze the characteristics of DGLAP with and without screening, as well as a Regge type model, and compare their predictions to all available data on $\slope$ including those for fixed W. Our results show that the present data can be described in pQCD taking into account shadowing corrections. However, such a description cannot be considered a conclusive signal of gluon saturation since the experimental data on $\slope$ do not allow one to discriminate between the various approaches, in spite of their very different construction.

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