SU(3) Polyakov linearσ model in an external magnetic field
Abstract
In the present work, we analyze the effects of an external magnetic field on the chiral critical temperature T_{c} of strongly interacting matter. In doing this, we can characterize the magnetic properties of the quantum chromodynamics (QCD) strongly interacting matter, the quarkgluon plasma (QGP). We investigate this in the framework of the SU(3) Polyakov linear sigma model (PLSM). To this end, we implement two approaches representing two systems, in which the Polyakovloop potential added to PLSM is either renormalized or nonnormalized. The effects of Landau quantization on the strongly interacting matter are conjectured to reduce the electromagnetic interactions between quarks. In this case, the color interactions will be dominant and increasing, which in turn can be achieved by increasing the Polyakovloop fields. Obviously, each of them equips us with a different understanding about the critical temperature under the effect of an external magnetic field. In both systems, we obtain a paramagnetic response. In one system, we find that T_{c} increases with increasing magnetic field. In the other one, T_{c} significantly decreases with increasing magnetic field.
 Publication:

Physical Review C
 Pub Date:
 July 2014
 DOI:
 10.1103/PhysRevC.90.015204
 Bibcode:
 2014PhRvC..90a5204T
 Keywords:

 12.39.Fe;
 12.38.Aw;
 52.55.s;
 Chiral Lagrangians;
 General properties of QCD;
 Magnetic confinement and equilibrium