Linking the Quark Meson Model with QCD at High Temperature

Abstract

We model the transition of a system of quarks and gluons at high energies to a system of quarks and mesons at low energies in a consistent renormalization group approach. Flow equations interpolate between the physics of the high-temperature degrees of freedom and the low-temperature dynamics at a scale of 1 GeV. We also discuss the dependence of the equation of state on baryon density and compare our results with recent lattice gauge simulations.

arXiv comment11 pages, 4 figures additional discussion of the second order phase transition

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• The Effect of Fluctuations on the QCD Critical Point in a Finite Volume
• Polyakov-Quark-Meson-Diquark Model for two-color QCD
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• Volume Dependence of the Pion Mass in the Quark-Meson-Model
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• Strangeness Neutrality and QCD Thermodynamics
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• Spontaneously broken ground states of the U(n)_L x U(n)_R linear sigma model at large n
• Subtleties in the calculation of correlation functions for hot and dense systems