Hot nuclear matter with dilatons

Abstract

We study hot nuclear matter in a model based on nucleon interactions deriving from the exchange of scalar and vector mesons. The main new feature of our work is the treatment of the scale breaking of quantum chromodynamics through the introduction of a dilaton field. Although the dilaton effects are quite small quantitatively, they affect the high-temperature phase transition appreciably. We find that inclusion of the dilaton leads to a metastable high-density state at zero pressure, similar to that found by Glendenning who considered instead the admixture of higher baryon resonances.

10 pages, LaTeX with equation.sty (optional) and epsfig.sty, 11 figures packed with uufiles. Final, published version (small changes from original preprint)

References in corpus (2)

• An Effective Lagrangian with Broken Scale and Chiral Symmetry Applied to Nuclear Matter and Finite Nuclei
• Does the effective Lagrangian for low-energy QCD scale?

Cited by in corpus (7)

• Hot Nuclear Matter in the Quark Meson Coupling Model
• Phase Transition in the chiral $\sigma$-$\omega$ model with dilatons
• An Effective Lagrangian with Broken Scale and Chiral Symmetry III: Mesons at Finite Temperature
• An Effective Lagrangian with Broken Scale and Chiral Symmetry IV: Nucleons and Mesons at Finite Temperature
• Strong Interaction Dynamics from Spontaneous Symmetry Breaking of Scale Invariance
• A Skyrmion Fluid
• Hot Nuclear Matter in the Quark Meson Coupling Model with Dilatons