Two and three loops computations of renormalization constants for lattice QCD
高能物理 - 格点
2009-11-10 v1
摘要
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.
引用
@article{arxiv.hep-lat/0409149,
title = {Two and three loops computations of renormalization constants for lattice QCD},
author = {F. Di Renzo and A. Mantovi and V. Miccio and L. Scorzato and C. Torrero},
journal= {arXiv preprint arXiv:hep-lat/0409149},
year = {2009}
}
备注
Lattice2004(improv), 3 pages, 4 figures