Fixed point actions in SU(3) gauge theory: surface tension and topology

Abstract

This work is organized in two independent parts. In the first part are presented some results concerning the surface tension in SU(3) obtained with a parametrized fixed point action. In the second part, a new, approximately scale-invariant, parametrized fixed point action is proposed which is suitable to study the topology in SU(3).

Comments: Contribution to the Lattice 97 proceedings, 3 pages, LaTeX, 2 eps figures, uses espcrc2.sty, epsfig.sty; minor unessential changes in one entry of Table 1 and in the text