Extracting the equation of state from a microscopic non-equilibrium model
Abstract
We study the thermodynamic properties of infinite nuclear matter with the Ultrarelativistic Quantum Molecular Dynamics (URQMD), a semiclassical transport model, running in a box with periodic boundary conditions. It appears that the energy density rises faster than at high temperatures of ~MeV. This indicates an increase in the number of degrees of freedom. Moreover, We have calculated direct photon production in Pb+Pb collisions at 160~GeV/u within this model. The direct photon slope from the microscopic calculation equals that from a hydrodynamical calculation without a phase transition in the equation of state of the photon source.
Cite
@article{arxiv.nucl-th/9606030,
title = {Extracting the equation of state from a microscopic non-equilibrium model},
author = {C. Spieles and A. Dumitru and S. A. Bass and M. Bleicher and J. Brachmann and M. Brandstetter and C. Ernst and L. Gerland and J. Konopka and S. Soff and H. Weber and L. A. Winckelmann and J. Maruhn and H. Stoecker and W. Greiner},
journal= {arXiv preprint arXiv:nucl-th/9606030},
year = {2007}
}
Comments
Proceedings of the XIV International Conference on Particles and Nuclei (PANIC'96), 22-28 May 1996, Williamsburg, Virginia, USA, to be published by World Scientific Publ. Co. (3 pages)