Gauge dependence on the chiral phase transition of QCD at finite   temperature in the Schwinger-Dyson equation
  We study the gauge dependence on the chiral phase transition of Quantum chromodynamics at finite temperature based on the quenched Schwinger-Dyson equation. We first solve the equations without approximations at finite temperature in general gauge, then study the gauge dependence on the critical temperature of the chiral phase transition. We find that the critical temperature drastically depends on the choice of the gauge, and the parameters at the quenched level in the Schwinger-Dyson equations. 
Hiroaki Kohyama
hep-ph