New insight in global QCD fits using Regge theory
High Energy Physics - Phenomenology
2007-05-23 v2
Abstract
In global QCD fits, one has to choose an initial parton distribution at Q^2=Q_0^2. I shall argue that the initial condition choses in usual standard sets is inconsistent with analytic S-matrix theory. I shall show how one can combine these two approaches, leading to a Regge-compatible next-to-leading order global QCD fit. This allows one to extend the parametrisation in the low-Q^2 region. Finally, I shall discuss how it it possible to use the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) equation to obtain information on Regge models at high Q^2.
Cite
@article{arxiv.hep-ph/0502158,
title = {New insight in global QCD fits using Regge theory},
author = {G. Soyez},
journal= {arXiv preprint arXiv:hep-ph/0502158},
year = {2007}
}
Comments
7 pages, 5 figures, proceedings for the HPLR 2004 meeting, 16-18 december 2004, Spa, Belgium