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Inverse catalysis effect of quark anomalous magnetic moment to chiral restoration and deconfinement phase transitions
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abstract
The effect of quark anomalous magnetic moment (AMM) to chiral restoration and deconfinement phase transitions under magnetic fields is investigated in a Pauli-Villars regularized PNJL model. A linear-in-$B$ term for quark anomalous magnetic moment is introduced to the Lagrangian density of our model, and it plays the role of inverse catalysis to the phase transitions. With fixed magnetic field, the critical temperature decreases with quark AMM. When fixing quark AMM, the critical temperature increases with magnetic field for a small quark AMM, but decreases with magnetic field for a large quark AMM. The critical temperature of chiral restoration and deconfinement phase transitions is determined by the two competing factors, the catalysis effect of magnetic field and inverse catalysis of quark anomalous magnetic moment.
Forward citations
Cited by 2 Pith papers
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Functional renormalization group study of anomalous magnetic moment in a low energy effective theory
In a magnetized two-flavor effective theory, quark anomalous magnetic moments are dynamically generated with chiral symmetry breaking, with the down quark moment roughly four times the up quark.
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A dual neural network quasiparticle model separates electric and magnetic gluon thermal masses from lattice QCD thermodynamics, but the high-temperature mass ratio is imposed by a regularization term.
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