Pure-gauge SU(2) on large lattices

Abstract

We have calculated the $q\bar{q}$ potential over a wide range of lattice separations on a $48^3\cdot 56$ lattice at $\beta =2.85$. We are able to investigate both long-range and (by correcting for the effects of lack of rotational invariance) short-range potentials. From the former we estimate the string tension and from the latter we are able to investigate asymptotic scaling. Fitting to this enables us to give an estimate for the $\Lambda$-parameter of pure-gauge SU(2).

Comments: talk at Lattice '92, Amsterdam, 4 pages, 1 figure (included as LaTeX picture), requires espcrc2.sty, Liverpool preprint LTH 290