Publication : t13/261
Constraining models of initial conditions with elliptic and triangular flow data
Retinskaya E. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)Luzum M. (Physics Department, McGill University, Ernest Rutherford Physics Bldg., 3600 University Ave., Montréal, Québec, H3A 2T8 CANADA)
Ollitrault J.-Y. (CEA, IPhT (Institut de Physique Théorique), F-91191 Gif-sur-Yvette, France)
Abstract:Année de publication : 2014
We carry out a combined analysis of elliptic and triangular flow data using viscous relativistic hydrodynamics. We show that these data allow to put tight constraints on models of the early dynamics of a nucleus-nucleus collision. Specifically, the rms values of the initial ellipticity $varepsilon_2$ and the initial triangularity $varepsilon_3$ are constrained to lie within a narrow band for each centrality. We use these constraints as a filter for existing Monte-Carlo models of initial state, and provide a simple test that can be performed on any candidate model to determine its compatibility with data.
Revue : Phys. Rev. C 89 014902 (2014)
DOI : 10.1103/PhysRevC.89.014902
Preprint : arXiv:1311.5339
Langue : Anglais
Fichier(s) à télécharger :
publi.pdf
