Critical points in the linear σ model with quarks
E. S. BowmanSchool of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USAJoseph I. KapustaSchool of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA
2009en
ABI
Abstract
We employ a simple effective model to study the chiral dynamics of two flavors of quarks at finite temperature and density. In particular, we determine the phase diagram in the plane of temperature and baryon chemical potential as a function of the pion mass. An interesting phase structure occurs that results in zero, one, or two critical points depending on the value of the vacuum pion mass.
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Cited by 20 references