Eur. Phys. J. C 20, 541-552 (2001)
DOI: 10.1007/s100520100682

Meson screening masses at high temperature in quenched QCD with improved Wilson Quarks

E. Laermann and P. Schmidt

Fakultät für Physik, Universität Bielefeld, 33615 Bielefeld, Germany

(Received: 2 April 2001 / Published online: 8 June 2001 -© Springer-Verlag / Società Italiana di Fisica 2001 )

Abstract
We report on a lattice investigation of improved quenched Wilson fermions above and below the confinement-deconfinement phase transition. Results on meson screening masses as well as spatial wave functions are presented. Moreover, the meson dispersion relation is studied. Below the critical temperature we do not observe any significant temperature effect while above T_c the data are consistent with a leading free quark behavior.

© Società Italiana di Fisica, Springer-Verlag 2001