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Dyson-Schwinger approach to color superconductivity at finite temperature and density

  • D. MüllerEmail author
  • M. Buballa
  • J. Wambach
Regular Article - Theoretical Physics

Abstract

We investigate the phases of dense QCD matter at finite temperature with Dyson-Schwinger equations for the quark propagator for N f = 2 + 1 flavors. For the gluon propagator we take a fit to quenched lattice data and add quark-loop effects perturbatively in a hard-thermal-loop-hard-dense-loop approximation. We consider 2SC and CFL-like pairing with chiral up and down quarks and massive strange quarks and present results for the condensates and the phase diagram. We find a dominant CFL phase at chemical potentials larger than 500-600MeV. At lower values of the chemical potential we find a 2SC phase, which also exists in a small band at higher temperatures for larger chemical potentials. With values of 20–30 MeV, the critical temperatures to the normal phase turn out to be quite small.

Keywords

Strange Quark Gluon Propagator Chiral Condensate Quark Propagator Truncation Scheme 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Institut für Kernphysik (Theoriezentrum)Technische Universität DarmstadtDarmstadtGermany

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