The QCD phase diagram in the presence of an external magnetic field: the role of the inverse magnetic catalysis

Abstract

The effect of an external magnetic field in QCD phase diagram, namely, in the the location of the critical end point (CEP) is investigated. Using the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop, it is shown that when an external magnetic field is applied its effect on the CEP depends on the strength of the coupling. If the coupling depends on the magnetic field, allowing for inverse magnetic catalysis, the CEP moves to lower chemical potentials eventually disappearing, and the chiral restoration phase transition is always of first order.

Proceedings of the Summer School and Workshop on High Energy Physics at the LHC: New Trends in HEP and QCD, October 21- November 6, 2014, Natal, Brazil

References in corpus (3)

• The Importance of Asymptotic Freedom for the Pseudocritical Temperature in Magnetized Quark Matter
• Inverse magnetic catalysis in the (2+1)-flavor Nambu--Jona-Lasinio and Polyakov--Nambu--Jona-Lasinio models
• Influence of the inverse magnetic catalysis and the vector interaction in the location of the critical end point

Cited by in corpus (2)

• QCD phase diagram in a magnetized medium from the chiral symmetry perspective: The linear sigma model with quarks and the Nambu--Jona-Lasinio model effective descriptions
• Analytic Study of Magnetic Catalysis in Holographic QCD