2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185095We consider two-family neutrino oscillations in a medium of continuously-varying density as a limit of the process in a series of constant-density layers. We construct analytic expressions for the conversion amplitude at high energies within a medium with a density profile that is piecewise linear. We compare some cases to understand the type of effects that depend on the order of the material traversed by a neutrino beam.10 pagesHigh Energy Physics - Phenomenologytext