The scales of euclidean and hamiltonian lattice QCD

Our earlier result on Λ_{F.g.^MOM/ΛEucl.^latt.} is confirmed by recalculating this ratio using the background field method. The relation between the scales of hamiltonian and euclidean SU(N) lattice gauge theory is also determined. We obtained

. It is in strong disagreement with the numbers previously used in the literature. It is argued that the strong coupling expansions for the string tension should be carefully reanalyzed.