Chiral magnetic properties of QCD phase-diagram
arXiv:2106.04576 · doi:10.1140/epja/s10050-021-00501-z
Abstract
The QCD phase diagram is studied, at finite magnetic field. Our calculations are based on the QCD effective model, the SU() Polyakov linear sigma model (PLSM), in which the chiral symmetry is integrated in the hadron phase and in the parton phase, the up-, down- and strange-quark degrees of freedom are incorporated besides the inclusion of Polyakov loop potentials in the pure gauge limit, which are motivated by various underlying QCD symmetries. The Landau quantization and the magnetic catalysis are implemented. The response of the QCD matter to an external magnetic field such as magnetization, magnetic susceptibility and permeability has been estimated. We conclude that the parton phase has higher values of magnetization, magnetic susceptibility, and permeability relative to the hadron phase. Depending on the contributions to the Landau levels, we conclude that the chiral magnetic field enhances the chiral quark condensates and hence the chiral QCD phase diagram, i.e. the hadron-parton phase transition likely takes place, at lower critical temperatures and chemical potentials.
arXiv comment16 pages, 11 figures, the paper is accepted for publication in The European Physical Journal A (EPJA)
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