Screening correlators and masses
The screening lengths at finite temperature show degeneracy between parity partners. Using overlap quarks in quenched QCD at 2Tc, we found that the vector "meson" correlation function agrees with the free fermion result over 8 decades for inverse lattice spacings of 8Tc, 12Tc and 16Tc. The screening correlator for the scalar is different, but the screening mass approaches the free result slowly as the lattice spacing decreases.