Computation of the relation between the bare lattice coupling and the MSbar coupling in SU(N) gauge theories to two loops

Details Computation of the relation between the bare lattice coupling and the MSbar coupling in SU(N) gauge theories to two loops Computation of the relation between the bare lattice coupling and the MSbar coupling in SU(N) gauge theories to two loops

1995-05-12

arxiv.org/abs/hep-lat/9505011v1

Nucl.Phys. B452 (1995) 234-260

Physics

High Energy Physics

High Energy Physics - Lattice

35 pages, uuencoded compressed postscript file

Scientific paper

10.1016/0550-3213(95)00338-S

The perturbation expansion of the MSbar coupling in the SU(N) gauge theory in powers of the bare lattice coupling is extended to two-loop order. A discussion of our results has already been published elsewhere. We here describe the calculation in some detail. It relies on the background field technique and a recently introduced coordinate space method to evaluate lattice Feynman integrals.

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