The Running Coupling from SU(3) Lattice Gauge Theory
  {}From an accurate determination of the inter-quark potential, one can study the running coupling constant for a range of $R$-values and hence estimate the scale $\Lambda_{\msbar} $. Detailed results are presented for $SU(3)$ pure gauge theory. 
The UKQCD Collaboration: S.P. Booth, D.S. Henty, A. Hulsebos, A.C.   Irving, C. Michael, P.W. Stephenson