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arxiv: 1609.02025 · v2 · pith:MU3UWB35new · submitted 2016-09-07 · ✦ hep-ph

Magnetic catalysis and inverse magnetic catalysis in nonlocal chiral quark models

V.P. Pagura , D. Gomez Dumm , S. Noguera , N.N. Scoccola This is my paper
classification ✦ hep-ph
keywords magneticcatalysismodelsnonlocalquarkbehaviorchiraleffect
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We study the behavior of strongly interacting matter under an external constant magnetic field in the context of nonlocal chiral quark models within the mean field approximation. We find that at zero temperature the behavior of the quark condensates shows the expected magnetic catalysis effect, our predictions being in good quantitative agreement with lattice QCD results. On the other hand, in contrast to what happens in the standard local Nambu-Jona-Lasinio model, when the analysis is extended to the case of finite temperature our results show that nonlocal models naturally lead to the Inverse Magnetic Catalysis effect.

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  1. Finite-Size Effects on the Critical End Point of Magnetized Quark Matter in the Nonlocal PNJL Model

    hep-ph 2026-05 unverdicted novelty 5.0

    Finite-size effects in the nonlocal PNJL model shift the critical end point of magnetized quark matter toward higher chemical potentials and lower temperatures as droplet radius decreases.