Perturbative determination of $c_{SW}$ for plaquette and Symanzik gauge action and stout link clover fermions

Horsley, R.; Perlt, H.; Rakow, P. E. L.; Schierholz, G.; Schiller, A.

Perturbative determination of $c_{SW}$ for plaquette and Symanzik gauge action and stout link clover fermions

Authors

Description

Using plaquette and Symanzik improved gauge action and stout link clover fermions we determine the improvement coefficient $c_{SW}$ in one-loop lattice perturbation theory from the off-shell quark-quark-gluon three-point function. In addition, we compute the coefficients needed for the most general form of quark field improvement and present the one-loop result for the critical hopping parameter $κ_c$. We discuss mean field improvement for $c_{SW}$ and $κ_c$ and the choice of the mean field coupling for the actions we have considered.
32 pages, 4 figures