Physics – Nuclear Physics – Nuclear Theory
Scientific paper
1997-06-25
ICPA-QGP Proceedings, Narosa Publishing House, edited by B.C. Sinha, D.K. Srivastava and Y.P. Viyogi, p. 570.
Physics
Nuclear Physics
Nuclear Theory
4 pages with 4 embedded PS figures, Talk presented at the 3rd International Conference on the Physics and Astrophysics of the
Scientific paper
We study the equilibration of a parton plasma in terms of its parton compositions and its state of thermalization. In studying the evolution of the plasma, one has to assume a small value of the strong coupling constant. This value is by no means fixed. By varying this only parameter in our calculation, we show the dependence of equilibration on its magnitude. It is shown that both kinetic and parton equilibration are faster with increasing coupling but the plasma cools much more rapidly resulting in shortened lifetime. The degree of equilibration improves significantly for quarks and antiquarks but not so for gluons and the total generated entropy is reduced. With a coupling depending on the average parton energy, there is additional acceleration in the equilibration during the evolution.
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