Particle Freeze-out within the Self-Consistent Hydrodynamics
High Energy Physics - Phenomenology
2009-06-12 v1
Abstract
Here I discuss some implicit assumptions of modern hydrodynamic models and argue that their accuracy cannot be better than 10-15 %. Then I formulate the correct conservation laws for the fluid emitting particles from an arbitrary freeze-out (FO) hypersurface (HS) and show that the derived momentum distribution function of emitted particles does not contain negative contributions which appear in the famous Cooper-Frye formula. Further I analyze the typical pitfalls of some hydro models trying to alternatively resolve the FO problem.
Cite
@article{arxiv.0902.0545,
title = {Particle Freeze-out within the Self-Consistent Hydrodynamics},
author = {K. A. Bugaev},
journal= {arXiv preprint arXiv:0902.0545},
year = {2009}
}
Comments
6 pages, talk given at the IV International Workshop on Particle Correlations and Femtoscopy, Cracow, September 11-14, 2008