We analyze the phase diagram of hot quark matter in presence of an axial chemical potential, mu(5). The latter is introduced to mimic the chirality transitions induced, in hot quantum chromodynamics, by the strong sphaleron configurations. In particular, we study the curvature of the critical line at small mu(5), the effects of a finite quark mass and of a vector interaction. Moreover, we build the mixed phase at the first order phase transition line and draw the phase diagram in the chiral density and temperature plane. We finally compute the full topological susceptibility in presence of a background of topological charge.

Hot Quark Matter with an Axial Chemical Potential

Marco Ruggieri
2011-01-01

Abstract

We analyze the phase diagram of hot quark matter in presence of an axial chemical potential, mu(5). The latter is introduced to mimic the chirality transitions induced, in hot quantum chromodynamics, by the strong sphaleron configurations. In particular, we study the curvature of the critical line at small mu(5), the effects of a finite quark mass and of a vector interaction. Moreover, we build the mixed phase at the first order phase transition line and draw the phase diagram in the chiral density and temperature plane. We finally compute the full topological susceptibility in presence of a background of topological charge.
2011
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology
High Energy Physics - Lattice
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11769/549930
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