Rise of the DIS structure function F_L at small x caused by double-logarithmic contributions
High Energy Physics - Phenomenology
2021-04-14 v3 High Energy Physics - Experiment
Abstract
We present calculation of F_L in the double-logarithmic approximation and demonstrate that the synergic effect of the factor 1/x from the \alpha_s^2-order and the steep x-dependence of the totally resummed double logarithmic contributions of higher orders ensures the power-like rise of F_L at small x and arbitrary Q^2.
Keywords
Cite
@article{arxiv.2012.10633,
title = {Rise of the DIS structure function F_L at small x caused by double-logarithmic contributions},
author = {B. I. Ermolaev and S. I. Troyan},
journal= {arXiv preprint arXiv:2012.10633},
year = {2021}
}
Comments
19 pp, 2 figs. Comparison with DGLAP and BFKL is presented in more detail, misprints corrected, some refs added