Centrality dependence of multiplicity, transverse energy, and elliptic flow from hydrodynamics
Abstract
The centrality dependence of the charged multiplicity, transverse energy, and elliptic flow coefficient is studied in a hydrodynamic model, using a variety of different initializations which model the initial energy or entropy production process as a hard or soft process, respectively. While the charged multiplicity depends strongly on the chosen initialization, the p_t-integrated elliptic flow for charged particles as a function of charged particle multiplicity and the p_t-differential elliptic flow for charged particles in minimum bias events turn out to be almost independent of the initial energy density profile.
Keywords
Cite
@article{arxiv.hep-ph/0103234,
title = {Centrality dependence of multiplicity, transverse energy, and elliptic flow from hydrodynamics},
author = {P. F. Kolb and U. Heinz and P. Huovinen and K. J. Eskola and K. Tuominen},
journal= {arXiv preprint arXiv:hep-ph/0103234},
year = {2009}
}
Comments
11 pages RevTex, including 10 postscript figures. Slightly modified discussion of Figs. 5 and 6, updated references. This version to appear in Nuclear Physics A