The 5ᵗ ͪ International Symposium on Cosmic Rays and Astrophysics (ISCRA-2025)

Ultra-high-energy event KM3-230213A constraints on Lorentz Invariance Violation in neutrino sector

Not scheduled

15m

National Research Nuclear University MEPhI

Original Talk Cosmic rays (nuclei, gammas, neutrinos) of very high energies (> 100 TeV) Cosmic rays (nuclei, gammas, neutrinos) of very high energies (> 100 TeV)

Speaker

Petr Satunin (INR RAS)

Description

We discuss the constraints on superluminal neutrino Lorentz Invariance Violation (LIV) parameters from the observation of the ultra-high-energy event KM3-230213A by the KM3NeT collaboration in cases of linear n=1 and quadratic n=2 LIV scenarios. Assuming extragalactic origin of the event, we obtain the constraints on LIV mass scale Λ_1=1.1×10^30  GeV and Λ_2​=1.1×1019 GeV from the absence of neutrino splitting.