Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande

Kamiokande Collaboration, K. Yamauchi, K. Abe +261

We searched for bound neutron decay via $n\to \bar{\nu }+K^0$ predicted by the Grand Unified Theories in 0.401 Mton$\cdot$years exposure of all pure water phases in the Super-Kamiokande…