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arXiv · hep-lat/0409149

Two and three loops computations of renormalization constants for lattice QCD

F. Di Renzo·A. Mantovi·V. Miccio·L. Scorzato·C. Torrero
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Abstract

Renormalization constants can be computed by means of Numerical Stochastic Perturbation Theory to two/three loops in lattice perturbation theory, both in the quenched approximation and in the full (unquenched) theory. As a case of study we report on the computation of renormalization constants of the propagator for Wilson fermions. We present our unquenched (N_f=2) computations and compare the results with non perturbative determinations.

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F. Di Renzo, A. Mantovi, V. Miccio, L. Scorzato, C. Torrero. 2004-09-27. Two and three loops computations of renormalization constants for lattice QCD. https://doi.org/10.1016/j.nuclphysbps.2004.11.275

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