2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/44635We consider the possibility that the $τ$ decay puzzle, if it is confirmed in future experiments, is a consequence of the Kobayashi-Maskawa mixing in the leptonic sector7 pages, Revtex, preprint IFT-P.023High Energy Physics - Phenomenologytext