doi:10.22323/1.406.0329engReyes Hung, M. A.Carmona, J.M.Cortés, J.L.Relancio, J.J.Effects of new physics in neutrino propagationART-2021-133555In 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.2021http://zaguan.unizar.es/record/12622710.22323/1.406.0329http://zaguan.unizar.es/record/126227oai:zaguan.unizar.es:126227Pos proceedings of science 329 (2021), [12 pp.]by-nc-ndhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccess