Lattice perturbation theory for gluonic and fermionic actions
I. T. Drummond, A. Hart, R. R. Horgan, L. C. Storoni
Abstract
We calculate the two loop Landau mean links and the one loop renormalisation of the anisotropy for Wilson and improved SU(3) gauge actions, using twisted boundary conditions as a gauge invariant infrared regulator. We show these accurately describe simulated results, and outline a method for generating Feynman rules for general lattice field theories, in a form suitable for efficient numerical calculation of perturbative loop diagrams.
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