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arxiv: 1307.7894 · v2 · pith:NSXUXWOBnew · submitted 2013-07-30 · ✦ hep-ph · nucl-th

Phase transition and critical end point driven by an external magnetic field in asymmetric quark matter

Pedro Costa , M\'arcio Ferreira , Hubert Hansen , D\'ebora P. Menezes , Constan\c{c}a Provid\^encia This is my paper
classification ✦ hep-ph nucl-th
keywords fieldmagneticphaseasymmetrycriticalexternalisospinpoint
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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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