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Journal Articles Physical Review D Year : 2014

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

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1
P. Costa
  • Function : Author
M. Ferreira
  • Function : Author
D.P. Menezes
  • Function : Author
C. Providência
  • Function : Author

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.

Dates and versions

in2p3-00857356 , version 1 (03-09-2013)

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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, 2014, 89, pp.056013. ⟨10.1103/PhysRevD.89.056013⟩. ⟨in2p3-00857356⟩
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