Flow systematics from SIS to SPS energies
Abstract
The various flow phenomena observed at energies between 50 AMeV and 160 AGeV are reviewed. I first define three types of flow: directed flow and elliptic flow, which are the two first Fourier components of the azimuthal distribution in non-central collisions; radial flow, which is deduced from an analysis of transverse momentum spectra in central collisions. Then, I review the observations of directed flow and elliptic flow, with emphasis on recent results. I discuss their dependence on various parameters: global geometry (impact parameter, mass numbers of colliding nuclei and bombarding energy) and individual observables (rapidity, transverse momentum and particle type). Finally, I explain how azimuthal distributions can be measured experimentally.
Keywords
Cite
@article{arxiv.nucl-ex/9802005,
title = {Flow systematics from SIS to SPS energies},
author = {Jean-Yves Ollitrault},
journal= {arXiv preprint arXiv:nucl-ex/9802005},
year = {2009}
}
Comments
12 pages, Latex, 5 Postscript figures included. Talk given at Quark Matter'97, 13th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, 1-5 December 97,Tsukuba, Japan