2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/112455The favoured resolution of the atmospheric neutrino anomaly involves an oscillation of the muon neutrino to a different state. Current experiments allow for the latter to contain a significantly large fraction of a non-standard flavour. We demonstrate how the next generation of experiments may take advantage of matter effects to resolve this issue.4 pages, LaTex, 7 figuresHigh Energy Physics - Phenomenologytext