Computation of the one-loop Symanzik coefficients for the square action

Abstract

We compute the one-loop coefficients for an alternative Symanzik improved pure gauge SU{N} lattice action (N=2 and N=3). For the standard Symanzik improved action we confirm previous results by Lüscher and Weisz.

Comments: 45 pages, LaTeX, includes library.ps for generating Feynman diagrams