Hunting for the Neutrino Oscillation Parameters with One Million Neutrinos in SK and IceCube

IceCube and Super-Kamiokande are two of the largest atmospheric neutrino detectors. Both experiments are sensitive to neutrino oscillation of the atmospheric neutrino parameters by measuring the same naturally-occurring neutrino flux at different complementary energies. With Super-K with Gadoliunum (Super-K-Gd) online and IceCube expecting an upgrade within a few years, we will be looking at more and finer data for atmospheric neutrinos. We provide a combined sensitivity analysis of atmospheric neutrinos across these two experiments using Monte-Carlo simulations for Super-K-Gd and IceCube Upgrade. Under the light of Super-K-Gd and IceCube Upgrade, we will be able to confine the mixing angles and mass squared differences more strictly, potentially resulting in new findings.