2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/189362Since order parameter of the chiral symmetry breaking Green Functions are a useful link between the OPE expansion and chiral perturbation theory we perform a calculation to the NLO in alpha_s, working in the chiral limit, for all the 2 and 3 point ones. These Green Functions have no perturbative term in the chiral limit and thence their main contribution comes from the quark condensate operator.4 pages, 4 figures. Talk given at the High-Energy Physics International Conference on Quantum Chromodynamics, 3-7 July (2006), Montpellier (France)High Energy Physics - Phenomenologytext