Supercooling of rapidly expanding quark-gluon plasma

Details Supercooling of rapidly expanding quark-gluon plasma Supercooling of rapidly expanding quark-gluon plasma

1998-05-31

arxiv.org/abs/hep-ph/9806207v1

Phys.Lett. B423 (1998) 373-378

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, LaTeX, 3 eps figures

Scientific paper

10.1016/S0370-2693(98)00006-9

We reexamine the scenario of homogeneous nucleation of the quark-gluon plasma produced in ultra-relativistic heavy ion collisions. A generalization of the standard nucleation theory to rapidly expanding system is proposed. The nucleation rate is derived via the new scaling parameter $\lambda_Z$. It is shown that the size distribution of hadronic clusters plays an important role in the dynamics of the phase transition. The longitudinally expanding system is supercooled to about 3-6%, then it is reheated, and the hadronization is completed within 6-10 fm/c, i.e. 5-10 times faster than it was estimated earlier, in a strongly nonequilibrium way.

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