ADHYDRO --- hydrodynamics-like model for highly anisotropic systems

Abstract

A new framework (ADHYDRO) is presented that has been designed for description of highly-anisotropic systems produced at the very early stages of relativistic heavy-ion collisions. The structure of ADHYDRO is very much similar to perfect-fluid hydrodynamics, however, ADHYDRO includes dissipation effects. Dissipation is defined by the form of the entropy source that depends on the pressure anisotropy and vanishes for the isotropic systems. With a simple ansatz for the entropy source, that obeys general physical requirements, we obtain the system of equations describing isotropization of the anisotropic systems.

arXiv commentTalk presented at the XL International Symposium on Multiparticle Dynamics, 21-25 September 2010, Antwerp (Belgium)