Fixed Point SU(3) Gauge Actions: Scaling Properties and Glueballs

Abstract

We present a new parametrization of a SU(3) fixed point (FP) gauge action using smeared ("fat") gauge links. We report on the scaling behaviour of the FP action on coarse lattices by means of the static quark-antiquark potential, the hadronic scale $r_0$, the string tension $\sigma$ and the critical temperature $T_c$ of the deconfining phase transition. In addition, we investigate the low lying glueball masses where we observe no scaling violations within the statistical errors.

Comments: Lattice 2000 (Improvement and Renormalisation), 4 pages, 3 eps-figures, LaTeX