QCD thermodynamics with Wilson quarks at large κ

We extend our study of the high temperature transition with two flavors of Wilson quarks on ${12}^3$×6 lattices to κ=0.19. We also perform spectrum calculations on ${12}^3$×24 lattices at κ=0.19 to find the physical lattice spacing and quark mass. At this value of κ the transition is remarkable in that the plaquette and ψ¯ψ show a large discontinuity while the Polyakov loop changes very little. This and several other features of the transition are more suggestive of a bulk transition than a transition to a quark-gluon plasma. However, if the temperature is estimated using the ρ mass as a standard, the result is about 150 MeV, in agreement with the value found for the thermal transition with Kogut-Susskind quarks.