The Role of Surface Tension for the Equation of State of Quark-Gluon Bags

Abstract

The temperature and chemical potential dependent surface tension of bags is introduced into the gas of quark-gluon bags model. The suggested model is solved analytically. It resolves a long standing problem of a unified description of the first and second order phase transition with the cross-over. Such an approach is necessary to model the complicated properties of quark-gluon plasma and hadronic matter from the first principles of statistical mechanics. In addition to the deconfinement phase transition, we found that at the curve of a zero surface tension coefficient there must exist the surface induced phase tranition of the 2-nd or higher order, which separates the pure quark gluon plasma (QGP) from the cross-over states. Thus, the present model predicts that the critical endpoint of quantum chromodynamics is the tricritical endpoint.

Talk given at the School-seminar `New Physics and Quantum Chromodynamics at External Conditions', Dnieproperovsk, Ukraine, May 3-6, 2007. Typos corrected

References in corpus (6)

• Quark-Gluon Bags with Surface Tension
• The Van-der-Waals Gas EOS for the Lorentz Contracted Spheres
• Hagedorn Thermostat: A Novel View of Hadronic Thermodynamics
• Yield scalings of clusters with fewer than 100 nucleons
• Exact Analytical Solution of the Constrained Statistical Multifragmentation Model and Phase Transitions in Finite Systems
• Equation of State for the Two-component Van der Waals Gas with Relativistic Excluded Volumes

Cited by in corpus (3)

• On Finite Width of Quark Gluon Plasma Bags
• Testing the Influence of Surface Tension and Finite Width of QGP Bags on the QCD Matter EOS Properties at NICA Energies
• Particle Freeze-out within the Self-Consistent Hydrodynamics