name

Urs Wenger

refid

6698

email

wenger@itp.unibe.ch

title

Fixed Point Actions: Scaling Properties and Glueball Masses

collaboration

Ferenc Niedermayer, Philipp Ruefenacht

abstract

We present a new parametrization of a SU(3) fixed point (FP) gauge action using
smeared gauge links. The new parametrization reproduces the classical
properties of the FP action excellently. We report on the scaling behaviour
of the FP action on coarse lattices by means of the static quark-antiquark
potential, the hadronic scale, the string tension and the critical temperature
of the deconfining phase transition.
In addition, we measured the glueball spectrum, where we observe no scaling
violations of the glueball masses within the statistical errors.

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