Phase transition and critical end point driven by an external magnetic field in asymmetric quark matter
Costa, Pedro · Ferreira, Márcio · Hansen, Hubert · Menezes, Débora P. · Providência, Constança
Original · EN
The location of the critical end point (CEP) in the QCD phase diagram is determined under different scenarios. The effect of strangeness, isospin/charge asymmetry and an external magnetic field is investigated. The discussion is performed within the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop. It is shown that isospin asymmetry shifts the CEP to larger baryonic chemical potentials and smaller temperatures. At large asymmetries the CEP disappears. However, a strong enough magnetic field drives the system into a first order phase transition.
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