The two-loop relation between the bare lattice coupling and the MS coupling in QCD with Wilson fermions
Date
1998Source
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy PhysicsVolume
426Issue
1-2Pages
121-124Google Scholar check
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We calculate the two-loop relation between the coupling renormalized in the MS̄ scheme and the bare lattice coupling g0 in QCD with Wilson fermions, extending the pure gauge results of Lüscher and Weisz. Our calculation leads to the the third coefficient of the lattice beta function. We show how this coefficient modifies the scaling function on the lattice. © 1998 Elsevier Science B.V. All rights reserved.