A unity of QCD evolution dynamics at small $x$ region
High Energy Physics - Phenomenology
2007-05-23 v2
Abstract
The DGLAP, BFKL, modified DGLAP and modified BFKL equations are constructed in a unified partonic framework. The antishadowing effect in the recombination process is emphasized, which leads to two different small behaviors of gluon distribution. In the meantime, the BFKL equation and modified DGLAP equation are viewed as the corrections of the initial gluon correlations to the evolution dynamics at twist-2 and twist-4, respectively. A partonic explanation of Regge theory for the BFKL dynamics and the relation of the BFKL dynamics with the helicity configuration of the initial gluons are presented.
Cite
@article{arxiv.hep-ph/0408327,
title = {A unity of QCD evolution dynamics at small $x$ region},
author = {Wei Zhu and Zhenqi Shen and Jifeng Yang and Jianhong Ruan},
journal= {arXiv preprint arXiv:hep-ph/0408327},
year = {2007}
}
Comments
43 pages, 21 figures, profoundly revised