The deconfinement transition for quenched SU(2) lattice QCD with Wilson fermions

The fermion contribution to the energy density of SU(2) lattice QCD is calculated in the quenched approximation for Wilson fermions as a function of temperature. The technique employed is a high order hopping parameter expansion. We find that the deconfinement temperature is - essentially independent of the quark mass - the same as that earlier determined for the pure gauge field part of SU(2) lattice QCD. The critical hopping parameter is estimated from the convergence radius of . At least for SU(2), the quantity shows no drastic change in behaviour indicating the exact position of a chiral phase transition. (orig.)