E. Laermann et P. Schmidt, Meson screening masses at high temperature in quenched QCD with improved Wilson Quarks, EUR PHY J C, 20(3), 2001, pp. 541-552
We report on a lattice investigation of improved quenched Wilson fermions a
bove and below the confinement-deconfinement phase transition. Results on m
eson screening masses as well as spatial wave functions are presented. More
over, the meson dispersion relation is studied. Below the critical temperat
ure we do not observe any significant temperature effect while above T-c th
e data are consistent with a leading free quark behavior.