The QCD Phase Boundary from Quark-Gluon Dynamics

Abstract

We study one-flavor QCD at finite temperature and chemical potential using the functional renormalization group. We discuss the chiral phase transition in QCD and its order with its underlying mechanism in terms of quarks and gluons and analyze the dependence of the phase transition temperature on small quark chemical potentials. Our result for the curvature of the phase boundary at small quark chemical potential relies on only a single input parameter, the value of the strong coupling at the Z mass scale.

49 pages, 3 figures; references added and discussion expanded (matches Eur. Phys. J. C version)

References in corpus (11)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• The Phase Structure of the Polyakov--Quark-Meson Model
• Susceptibilities and the Phase Structure of a Chiral Model with Polyakov Loops
• Chiral phase boundary of QCD at finite temperature
• Infrared properties of propagators in Landau-gauge pure Yang-Mills theory at finite temperature
• Non-perturbative thermal flows and resummations
• Just how different are SU(2) and SU(3) Landau-gauge propagators in the IR regime?
• Perturbation theory and non-perturbative renormalization flow in scalar field theory at finite temperature
• High-accuracy scaling exponents in the local potential approximation
• Confinement in Polyakov Gauge
• Scaling functions for the O(4)-model in d=3 dimensions