Comment on the possible electron neutrino excess in the Super-Kamiokande atmospheric neutrino experiment

C.W. Kim, U.W. Lee
1998 Physics Letters B  
We investigate the implications of a possible excess of the electron neutrino events in the Super-Kamiokande atmospheric neutrino experiment. The excess, if real, leads to constraints on the $\nu_\mu \leftrightarrow \nu_e$, $\nu_\mu \leftrightarrow \nu_\tau$ and $\nu_e \leftrightarrow \nu_\tau$ oscillation parameters. Specifically, the excess impies that $\nu_e - \nu_\mu$ and $\nu_\mu - \nu_\tau$ mixings are large and $\nu_e - \nu_\tau$ mixing is small. We show that the electron neutrino excess
more » ... ron neutrino excess favors the large mixing angle MSW solution of the solar neutrino problem.
doi:10.1016/s0370-2693(98)01382-3 fatcat:iujxuhsqz5bi7mqstl52fantry