Thermal and chemical equilibration in a gluon plasma

Details Thermal and chemical equilibration in a gluon plasma Thermal and chemical equilibration in a gluon plasma

1996-06-12

arxiv.org/abs/hep-ph/9606305v1

Nucl.Phys. A607 (1996) 442-456

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages + 4 postscript figures, latex2e file, final version to appear in Nucl. Phys. A

Scientific paper

10.1016/0375-9474(96)00220-5

We show the evolution of a gluon plasma towards equilibrium starting at some early moment when the momentum distribution in the central region is momentaneously isotropic. Using HIJING results for Au+Au collision as initial input, we consider thermalization and chemical equilibration simultaneously at both LHC and RHIC energies. Thermalization is shown to be driven chiefly by inelastic process in our scenario contradicting common assumption that this is the role of elastic process. We argue that only the inelastic dominancy depends on the initial conditions but not the dominance itself.

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