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

S. M. H. Wong
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Abstract

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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S. M. H. Wong. 1998-10-31. Equilibration And Out-Of-Equilibrium Effect In Relativistic Heavy Ion Collisions. https://arxiv.org/abs/nucl-th/9810081

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