Phase transition of the nucleon-antinucleon plasma at different ratios

Abstract

We investigate phase transitions for the Walecka model at very high temperatures. As is well known, depending on the parametrization of this model and for the particular case of a zero chemical potential ($\mu$), a first order phase transition is possible \cite{theis}. We investigate this model for the case in which $\mu \ne 0$. It turns out that, in this situation, phases with different values of antinucleon-nucleon ratios and net baryon densities may coexist. We present the temperature versus antinucleon-nucleon ratio as well as the temperature versus the net baryon density for the coexistence region. The temperature versus chemical potential phase diagram is also presented.

5 pages, 8 figures

References in corpus (9)

• A New Parameterization for the Lagrangian Density of Relativistic Mean Field Theory
• Hadron production in Au-Au collisions at RHIC
• Chemical Equilibration in Pb+Pb Collisions at the SPS
• Chemical and Thermal Freeze-Out Parameters from 1 to 200 A.GeV
• A Chiral Effective Lagrangian for Nuclei
• Density Dependent Hadron Field Theory
• Particle ratios at RHIC: Effective hadron masses and chemical freeze-out
• Constraining relativistic models through heavy ion collisions
• Hadronic Entropy Enhancement and Low Density QGP

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• Thermodynamical phases in a PNJL model at zero temperature
• Critical behaviour of an effective relativistic mean field model in the presence of magnetic background and boundaries