Publication : t09/112
The centrality dependence of v2/epsilon: the ideal hydro limit and eta/s
Masui H. (Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley CA 94720, USA)Ollitrault J.-Y. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Snellings R. (NIKHEF, Kruislaan 409, NL-1098 SJ Amsterdam, THE NETHERLANDS)
Tang A. (Brookhaven National Laboratory (BNL), Upton, NY 11973-5000, USA)
Abstract:Année de publication : 2009
The large elliptic flow observed at RHIC is considered to be evidence for almost perfect liquid behavior of the strongly coupled quark-gluon plasma produced in the collisions. In these proceedings we present a two parameter fit for the centrality dependence of the elliptic flow scaled by the spatial eccentricity. We show by comparing to viscous hydrodynamical calculations that these two parameters are in good approximation proportional to the shear viscosity over entropy ratio and the ideal hydro limit of the ratio v2/epsilon.
Revue : Nucl. Phys. A 830 463c-466c (2009)
Conférence - Poster : par R. Snellings; The 21st International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions (Quark Matter 2009) ; Knoxville, TN ; 2009-03-30 / 2009-04-04
DOI : 10.1016/j.nuclphysa.2009.10.103
Preprint : arXiv:0908.0403
Langue : Anglais
Fichier(s) à télécharger :
publi.pdf
