The Vacuum Polarization: Power Corrections beyond OPE ?
arXiv:hep-lat/0012010 · doi:10.1016/S0920-5632(01)00869-6
Abstract
We compute the vacuum polarization on the lattice using non-perturbatively O(a) improved Wilson fermions. The result is compared with the operator product expansion (OPE).
Lattice 2000 (Perturbation Theory), 4 pages