The European Physical Journal A

, 48:165

Coarse-graining scale and effectiveness of hydrodynamic modeling

Authors

  • Ph. Mota
    • Instituto de FísicaUniversidade Federal do Rio de Janeiro
    • Frankfurt Institute for Advanced Studies FIASGoethe-Universität Frankfurt
  • T. Kodama
    • Instituto de FísicaUniversidade Federal do Rio de Janeiro
    • Frankfurt Institute for Advanced Studies FIASGoethe-Universität Frankfurt
    • ExtreMe Matter Institute EMMI and Research DivisionGSI Helmholtzzentrum für Schwerionenforschung
  • R. Derradi de Souza
    • Instituto de Física Gleb WataghinUniversidade Estadual de Campinas
  • J. Takahashi
    • Instituto de Física Gleb WataghinUniversidade Estadual de Campinas
Review

DOI: 10.1140/epja/i2012-12165-7

Cite this article as:
Mota, P., Kodama, T., Derradi de Souza, R. et al. Eur. Phys. J. A (2012) 48: 165. doi:10.1140/epja/i2012-12165-7
Part of the following topical collections:
  1. Topical Issue on Relativistic Hydro- and Thermodynamics

Abstract

Some basic questions about the hydrodynamical approach to relativistic heavy-ion collisions are discussed aiming to clarify how far we can go with such an approach to extract useful information on the properties and dynamics of the QCD matter created. We emphasize the importance of the coarse-graining scale required for the hydrodynamic modeling which determines the space-time resolution and the associated limitations of collective flow observables. We show that certain kinds of observables can indicate the degree of inhomogeneity of the initial condition under less stringent condition than the local thermal equilibrium subjected to the coarse-graining scale compatible to the scenario.

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2012