Egalitarian Improvement to Democracy: Quark renormalization constants in N_f=2 QCD

K. Petrov

Egalitarian Improvement to Democracy: Quark renormalization constants in N_f=2 QCD

High Energy Physics - Lattice 2011-01-27 v2

Authors: K. Petrov

Abstract

We present our results on the non-perturbative evaluation of the renormalization constant for the quark field, $Z_q$ , in Landau gauge within RI-MOM scheme. Using three lattice spacing we are able to isolate lattice artefacts of various origin, both perturbative and non-perturbative. In particular, the existence of the dimension-two gluon-condensate is discussed, and confirmed.

Keywords

quark renormalization constant lattice QCD RI-MOM scheme Landau gauge gluon condensate non-perturbative renormalization

Cite

@article{arxiv.1008.2224,
  title  = {Egalitarian Improvement to Democracy: Quark renormalization constants in N_f=2 QCD},
  author = {K. Petrov},
  journal= {arXiv preprint arXiv:1008.2224},
  year   = {2011}
}

Comments

version 2, corrected

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