Perturbative QCD and Regge theory: closing the circle
High Energy Physics - Phenomenology
2014-11-17 v3 High Energy Physics - Experiment
Abstract
We explain how Regge theory and perturbative evolution may be made compatible at small x. The result not only gives striking support to the two-pomeron description of small-x behaviour, but gives a rather clean test of perturbative QCD itself. When x is very small, or Q^2 is very large, the proton's gluon distribution function is significantly larger than is commonly believed. Perturbative evolution is invalid below Q^2\approx 5 GeV^2.
Cite
@article{arxiv.hep-ph/0111427,
title = {Perturbative QCD and Regge theory: closing the circle},
author = {A Donnachie and P V Landshoff},
journal= {arXiv preprint arXiv:hep-ph/0111427},
year = {2014}
}
Comments
8 pages, plain tex, with 6 figures embedded using epsf. Revised version contains extra explanation and corrects typos