2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/201940We investigate hadronic unquenching effects in light quarks and mesons. To this end we take into account the back-coupling of the pion onto the quark propagator within the non-perturbative continuum framework of Schwinger-Dyson equations (SDE) and Bethe-Salpeter equations (BSE). We improve on a previous approach by explicitly solving both the coupled system of DSEs and BSEs in the complex plane and the normalisation problem for Bethe-Salpeter kernels depending on the total momentum of the meson. As a result of our study we find considerable unquenching effects in the spectrum of light pseudoscalar, vector and axial-vector mesons.9 pages, 5 figures. Minor typos corrected. Version to appear in PRDHigh Energy Physics - PhenomenologyNuclear TheoryBeyond the rainbow: effects from pion back-couplingtext