Equilibration And Out-Of-Equilibrium Effect In Relativistic Heavy Ion Collisions

Details Equilibration And Out-Of-Equilibrium Effect In Relativistic Heavy Ion Collisions Equilibration And Out-Of-Equilibrium Effect In Relativistic Heavy Ion Collisions

1998-10-31

arxiv.org/abs/nucl-th/9810081v1

Proceedings of the XXVIII ISMD'98 (World Scientific) p.93.

Physics

Nuclear Physics

Nuclear Theory

use sprocl.sty, 6 EPS figures, talk presented at the XXVIII International Symposium on Multiparticle Dynamics, Delphi, Greece,

Scientific paper

The approach of a parton plasma at future heavy ion colliders towards kinetic and chemical equilibrium is considered. A plasma with a self-consistent evolving parton-parton interaction strength is shown to equilibrate better and faster than the usual but inconsistent one with a fixed strength. We explain why as a consequence of this, a parton plasma is a unique kind of many-body system. Because our time evolution scheme does not require the plasma to be in either kind of equilibrium from the outset, out-of-equilibrium effect on particle productions can be revealed. We show this on photon production and discuss the implications on photon as a signal to detect the quark-gluon plasma.

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