2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/202423We 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 pagesHigh Energy Physics - LatticeHigh Energy Physics - Phenomenologytext