QCD at small x and nucleus-nucleus collisions
High Energy Physics - Phenomenology
2008-11-26 v1 Nuclear Experiment
Nuclear Theory
Abstract
At large collision energy sqrt(s) and relatively low momentum transfer Q, one expects a new regime of Quantum Chromo-Dynamics (QCD) known as "saturation". This kinematical range is characterized by a very large occupation number for gluons inside hadrons and nuclei; this is the region where higher twist contributions are as large as the leading twist contributions incorporated in collinear factorization. In this talk, I discuss the onset of and dynamics in the saturation regime, some of its experimental signatures, and its implications for the early stages of Heavy Ion Collisions.
Cite
@article{arxiv.hep-ph/0701225,
title = {QCD at small x and nucleus-nucleus collisions},
author = {Francois Gelis},
journal= {arXiv preprint arXiv:hep-ph/0701225},
year = {2008}
}
Comments
Plenary talk given at QM2006, Shanghai, November 2006. 8 pages, 8 figures