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Analytic determination of the T-μ phase diagram of the chiral quark model |
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| Authors: | A. Jakovác A. Patkós Zs. Szép P. Szépfalusy |
| Affiliation: | 1. Research Group “Theory of Condensed Matter”, Hungarian Academy of Sciences and Budapest University of Technology and Economics, H-1521, Budapest, Hungary 2. Department of Atomic Physics, E?tv?s University, H-1117, Budapest, Hungary 3. Research Group for Statistical Physics of the Hungarian Academy of Sciences, H-1117, Budapest, Hungary 4. Department of Physics of Complex Systems, E?tv?s University, H-1117, Budapest, Hungary 5. Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, H-1525, Budapest, Hungary |
| Abstract: | Using a gap equation for the pion mass a non-perturbative method is given for solving the chiral quark-meson model in the chiral limit at the lowest order in the fermion contributions encountered in a large-N fapproximation. The location of the tricritical point is analytically determined. A mean field potential is constructed from which critical exponents can be obtained. |
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