High energy factorization in nucleus-nucleus collisions II - Multigluon correlations
High Energy Physics - Phenomenology
2009-01-09 v1
Abstract
We extend previous results (arXiv:0804.2630 [hep-ph]) on factorization in high-energy nucleus-nucleus collisions by computing the inclusive multigluon spectrum to next-to-leading order. The factorization formula is strictly valid for multigluon emission in a slice of rapidity of width \Delta Y< 1/\alpha_s. Our results show that often neglected disconnected graphs dominate the inclusive multigluon spectrum and are essential to prove factorization for this quantity. These results provide a dynamical framework for the Glasma flux tube picture of the striking "ridge"-like correlation seen in heavy ion collisions.
Keywords
Cite
@article{arxiv.0807.1306,
title = {High energy factorization in nucleus-nucleus collisions II - Multigluon correlations},
author = {F. Gelis and T. Lappi and R. Venugopalan},
journal= {arXiv preprint arXiv:0807.1306},
year = {2009}
}
Comments
29 pages