Pre-equilibrium evolution of quark-gluon plasma

Details Pre-equilibrium evolution of quark-gluon plasma Pre-equilibrium evolution of quark-gluon plasma

1997-10-20

arxiv.org/abs/hep-ph/9710406v2

Phys.Rev.C58:356-364,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages Latex, 14 postscript figures; Minor changes are made: To appear in Physical Reveiw C

Scientific paper

10.1103/PhysRevC.58.356

We study the production and the evolution of quark-gluon plasma expected to be formed in ultra relativistic heavy-ion collisions, within the color flux-tube model. We introduce the gluonic component in the Boltzmann equation, which we solve in the phase space which is extended to include the SU(3) color degree of freedom. The color degree of freedom is shown to play a decisive role in equilibration, and in fixing the temperature of the plasma. We further find that the soft partons that we study here contribute substantially to the bulk properties. Finally, the model is shown to provide a detailed picture of how the quark-gluon plasma evolves and is driven towards a hydrodynamic flow, which starts occuring around 1 $fm$.

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