Testing neutrino decay scenarios with IceCube data

Understand

We test the hypothesis of non-radiative neutrinos decay using the latest IceCube data.

• Namely, we calculate the track-to-shower ratio expected in IceCube for the normal and inverted neutrino mass hierarchy taking into account the uncertainties in neutrino oscillation parameters.
• We show that the subset of data with energy above 60 TeV actually excludes the possibility of a neutrinos decay at the 1 sigma level of significance for both neutrino mass hierarchies.