Super-PINGU for measurement of the leptonic CP-phase with atmospheric neutrinos

Understand

We explore a possibility to measure the CP-violating phase $\delta$ using multi-megaton scale ice or water Cherenkov detectors with low, $(0.2 - 1)$ GeV, energy threshold assuming that the neutrino mass hierarchy is identified.

• We elaborate the relevant theoretical and phenomenological aspects of this possibility.
• The distributions of the $\nu_\mu$ (track) and $\nu_e$ (cascade) events in the neutrino energy and zenith angle $(E_\nu - \theta_z)$ plane have been computed for different values of $\delta$.
• We study properties and distinguishability of the distributions before and after smearing over the neutrino energy and zenith angle.