2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/192339The hypothesis of a large weak matrix element between single-particle states in heavy nuclei ($\sim 100$ eV) contradicts the results of atomic PNC experiments.7 pages, latex (revtex), no figuresNuclear TheoryIs Large Weak Mixing in Heavy Nuclei Consistent with Aiomic Experiments?text