Search for proton decay via $p\to e^{+}{\pi }^0{\pi }^0$ and $p\to {\mu }^{+}{\pi }^0{\pi }^0$ in 0.401 megaton-years exposure of Super-Kamiokande I-V

Kamiokande Collaboration, K. Abe, S. Abe +310

We searched for proton decay via $p\to e^{+}{\pi }^0{\pi }^0$ and $p\to {\mu }^{+}{\pi }^0{\pi }^0$ in 0.401 megaton-years of data collected in all pure water detector phases of Super-Kamiokande…