Conditions for confinement and freeze-out |
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Authors: | V Magas H Satz |
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Institution: | (1) Instituto Superior Técnico, Centro de Fisíca das Interacções Fundamentais (CFIF), Av. Rovisco Pais, 1049-001 Lisbon, Portugal;(2) Fakultät fur Physik, Universität Bielefeld, Postfach 100 131, 33501 Bielefeld, Germany |
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Abstract: | Matter implies the existence of a large-scale connected cluster of a uniform nature. The appearance of such clusters as a function of hadron density is specified by percolation theory. We can therefore formulate the freeze-out of interacting hadronic matter in terms of the percolation of hadronic clusters. The resulting freeze-out condition as a function of temperature and baryo-chemical potential interpolates between resonance gas behavior at low baryon density and repulsive nucleonic matter at low temperature, and it agrees well with the data.Received: 10 September 2003, Published online: 7 November 2003 |
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