The strong coupling constant from lattice QCD with N_f=2 dynamical quarks
arXiv:hep-lat/0111006 · doi:10.1016/S0920-5632(01)01697-8
Abstract
We compute $Î_{\bar{MS}}$ for two flavors of light dynamical quarks using non-perturbatively $O(a)$ improved Wilson fermions. We improve on a recent calculation by employing Padé-improved two-loop and three-loop perturbation theory to convert the lattice numbers to the $\bar{MS}$ scheme.
Contribution to Lattice 2001 (matrix elements), typo corrected