2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/83240We calculate the critical exponents of the chiral phase transition at nonzero temperature using the thermal and chiral susceptibilities. We show that within a class of confining Dyson-Schwinger equation (DSE) models the transition is mean field, and that an accurate determination of the critical exponents requires extremely small values of the current-quark mass, several order of magnitude smaller than realistic up- and down-quark masses. In general, rainbow truncation models of QCD exhibit mean field exponents as a result of the gap equation's fermion substructure.6 pages, 2 figures, to appear in the proceedings of the workshop "Understanding Deconfinement in QCD", Trento, March 1999Nuclear Theorytext