Nucleation versus Spinodal decomposition in a first order quark hadron phase transition

Details Nucleation versus Spinodal decomposition in a first order quark hadron phase transition Nucleation versus Spinodal decomposition in a first order quark hadron phase transition

2001-05-10

arxiv.org/abs/hep-ph/0105086v2

Phys.Rev.C64:054910,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX, 10 pages with 7 Postscript figures, more discussions and referencese added, typos corrected

Scientific paper

10.1103/PhysRevC.64.054910

We investigate the scenario of homogeneous nucleation for a first order quark-hadron phase transition in a rapidly expanding background of quark gluon plasma. Using an improved preexponential factor for homogeneous nucleation rate, we solve a set of coupled equations to study the hadronization and the hydrodynamical evolution of the matter. It is found that significant supercooling is possible before hadronization begins. This study also suggests that spinodal decomposition competes with nucleation and may provide an alternative mechanism for phase conversion particularly if the transition is strong enough and the medium is nonviscous. For weak enough transition, the phase conversion may still proceed via homogeneous nucleation.

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