Smekal, Determination of ΛMS from the gluon and ghost propagators

We give an update on our lattice determination of r0ΛMS for different N f. Our calculations em-ploy the strong coupling constant in the minimal MOM scheme for QCD in Landau gauge, and we report here on our progress towards a quantitative understanding of the intrinsic lattice dis-cretization artifacts at large momenta. This is important for a high-precision analysis, in particular for the unquenched calculations for which the access to small lattice spacings is restricted by the available gauge configurations