Finite-Size Results for SU(3) Gauge Theory

Abstract
We give the semiclassical evaluation of the energy of electric flux in units of the 0++ glueball mass for SU(3) gauge theory and predict a crossover in this quantity around z=1.6. The parameter z is the length of the sides of a cubic volume (the three-torus) in units of the inverse glueball mass. We discuss lattice gauge theory in the context of a finite volume and compare our analytic prediction with recent SU(3) Monte Carlo results.