The strong coupling constant from lattice QCD with N_f=2 dynamical quarks

Booth, S.; Göckeler, M.; Horsley, R.; Irving, A. C.; Joo, B.; Pickles, S.; Pleiter, D.; Rakow, P. E. L.; Schierholz, G.; Sroczynski, Z.; Stüben, H.

The strong coupling constant from lattice QCD with N_f=2 dynamical quarks

Authors

Description

We compute $Λ_{\bar{MS}}$ 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