Resumen: In this work we consider the effects of Lorentz Invariance Violation over the observed flux of very high-energy neutrinos. For that, we study the neutrino propagation in a Modified Dispersion Relation scenario with a superluminal velocity. This makes the neutrino unstable and causes a cut-off in the flux of detected neutrinos. Using simple models, one can approximate the location of the cut-off as functions of the parameters of new physics and the closest source. Idioma: Inglés DOI: 10.22323/1.406.0329 Año: 2021 Publicado en: Pos proceedings of science 329 (2021), [12 pp.] ISSN: 1824-8039 Tipo y forma: Congress (Published version) Área (Departamento): Área Física Teórica (Dpto. Física Teórica) Área (Departamento): Área Física Atóm.Molec.y Nucl. (Dpto. Física Teórica)