Key points are not available for this paper at this time.
At zero temperature SU (2) and SU (3) gauge theories confine quarks and spontaneously break chiral symmetry. At some nonzero temperatures T₂ (T₅) these gauge theories lose confinement (chiral symmetry breaking). The order of these phase transitions and the relation between T₂ and T₅ have been studied with use of simulation methods which neglect internal fermion loops. For SU (2) both transitions are second order and 1<~T₅{T₂}<1. 30. For SU (3) the transitions are first order and 1<~T₅{T₂}<~1. 05, with T₂200 MeV.
Kogut et al. (Mon,) studied this question.