The QCD critical end point driven by an external magnetic field in asymmetric quark matter

P. Costa; M. Ferreira; C. Providência; H. Hansen; D.P. Menezes

The QCD critical end point driven by an external magnetic field in asymmetric quark matter

P. Costa M. Ferreira C. Providência H. Hansen ¹ D.P. Menezes

1 IPNL - Institut de Physique Nucléaire de Lyon

Abstract : The effect of the isospin/charge asymmetry and an external magnetic field in the location of the critical end point (CEP) in the QCD phase diagram is investigated. By using the 2+1 flavor Nambu--Jona-Lasinio model with Polyakov loop (PNJL), it is shown that the isospin asymmetry shifts the CEP to larger baryonic chemical potentials and smaller temperatures, and in the presence of a large enough isospin asymmetry the CEP disappears. Nevertheless, a sufficiently high external magnetic field can drive the system into a first order phase transition again.

Document type :

Conference papers

Domain :

Physics [physics] / High Energy Physics - Phenomenology [hep-ph]

Complete list of metadatas

http://hal.in2p3.fr/in2p3-01247446
Contributor : Sylvie Flores <>
Submitted on : Tuesday, December 22, 2015 - 8:23:16 AM
Last modification on : Thursday, March 15, 2018 - 11:40:10 AM

The QCD critical end point driven by an external magnetic field in asymmetric quark matter

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The QCD critical end point driven by an external magnetic field in asymmetric quark matter

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