At zero temperature SU(2) and SU(3) gauge theories confine quarks and spontaneously break chiral symmetry. At some nonzero temperatures Tc (TF) these gauge theories lose confinement (chiral symmetry breaking). The order of these phase transitions and the relation between Tc and TF have been studied with use of simulation methods which neglect internal fermion loops. For SU(2) both transitions are second order and 1<~TFTc<1.30. For SU(3) the transitions are first order and 1<~TFTc<~1.05, with Tc 200 MeV.
ASJC Scopus subject areas
- Physics and Astronomy(all)