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

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

2010-08-12

arxiv.org/abs/1008.2224v2

PoS Lattice2010:237,2010

Physics

High Energy Physics

High Energy Physics - Lattice

version 2, corrected

Scientific paper

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.

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