Artefacts and <A2> power corrections : revisiting the MOM Z_psi and Z_V
arXiv:hep-lat/0504017 · doi:10.1103/PhysRevD.74.034505
Abstract
We extract the power corrections due to the A^2 condensate in the overlap quark propagator (vector part of the inverse propagator Z_psi). The results are consistent with the previous gluon analysis. The role of artefacts is extensively discussed.
33 pages, 5 figures