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

Abstract : The location of the critical end point (CEP) in the QCD phase diagram is determined under different scenarios. The effect of strangeness, isopsin/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 (PNJL). 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 will drive the system into a first order phase transition.
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Submitted on : Tuesday, September 3, 2013 - 1:53:25 PM
Last modification on : Friday, September 10, 2021 - 1:50:12 PM

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P. Costa, M. Ferreira, H. Hansen, D.P. Menezes, C. Providência. Phase transition and critical end point driven by an external magnetic field in asymmetric quark matter. Physical Review D, American Physical Society, 2014, 89, pp.056013. ⟨10.1103/PhysRevD.89.056013⟩. ⟨in2p3-00857356⟩

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