Small-x behavior of the structure function F_2 and its slope partial ln(F_2)/partial ln(1/x) for "frozen" and analytic strong-coupling constants
High Energy Physics - Phenomenology
2009-10-02 v2
Abstract
Using the leading-twist approximation of the Wilson operator product expansion with "frozen" and analytic versions of the strong-coupling constant, we show that the Bessel-inspired behavior of the structure function F_2 and its slope\break partial ln(F_2)/partial ln(1/x) at small values of x, obtained for a flat initial condition in the DGLAP evolution equations, leads to good agreement with experimental data of deep-inelastic scattering at DESY HERA.
Keywords
Cite
@article{arxiv.0906.1925,
title = {Small-x behavior of the structure function F_2 and its slope partial ln(F_2)/partial ln(1/x) for "frozen" and analytic strong-coupling constants},
author = {G. Cvetic and A. Yu. Illarionov and B. A. Kniehl and A. V. Kotikov},
journal= {arXiv preprint arXiv:0906.1925},
year = {2009}
}
Comments
new curves added to Figs. 1 and 2, minor changes to the text, accepted for publication in Phys. Lett. B