QCD running coupling effects for the non-singlet structure function at small x
高能物理 - 唯象学
2010-03-25 v2
摘要
A generalization of the leading-order DGLAP evolution at small x is performed for the non-singlet structure function by resumming the leading-order DGLAP anomalous dimension to all orders in the QCD coupling. Explicit expressions are obtained for the non-singlet structure function of the deep inelastic scattering, taking into account both the double-logarithmic and the single-logarithmic contributions, including the running alpha_s effects. It is shown that when these contributions are included, the asymptotic small-x behaviour is power-like, with an exponent of about 0.4.
引用
@article{arxiv.hep-ph/9906276,
title = {QCD running coupling effects for the non-singlet structure function at small x},
author = {B. I. Ermolaev and M. Greco and S. I. Troyan},
journal= {arXiv preprint arXiv:hep-ph/9906276},
year = {2010}
}
备注
Latex, 20 pages, 7 figures