Equation of state of resonance-rich matter in the central cell in heavy-ion collisions at [Formula Presented]


Journal Article

The equilibration of hot and dense nuclear matter produced in the central cell of central Au+Au collisions at [Formula Presented] is studied within a microscopic transport model. The pressure in the cell becomes isotropic at [Formula Presented] after beginning of the collision. Within the next [Formula Presented] the expansion of matter in the cell proceeds almost isentropically with the entropy per baryon ratio [Formula Presented] and the equation of state in the [Formula Presented] plane has a very simple form, [Formula Presented] Comparison with the statistical model of an ideal hadron gas indicates that the time [Formula Presented] may be too short to reach the fully equilibrated state. Particularly, the creation of long-lived resonance-rich matter in the cell decelerates the relaxation to chemical equilibrium. This resonance-abundant state can be detected experimentally after the thermal freeze out of particles. © 2001 The American Physical Society.

Full Text

Duke Authors

Cited Authors

  • Bravina, LV; Zabrodin, EE; Bass, SA; Bleicher, M; Brandstetter, M; Faessler, A; Fuchs, C; Greiner, W; Soff, S; Stöcker, H

Published Date

  • January 1, 2001

Published In

Volume / Issue

  • 63 / 6

Start / End Page

  • 8 -

Electronic International Standard Serial Number (EISSN)

  • 1089-490X

International Standard Serial Number (ISSN)

  • 0556-2813

Digital Object Identifier (DOI)

  • 10.1103/PhysRevC.63.064902

Citation Source

  • Scopus