Can LSND and SuperKamiokande be explained by radiative decays of muons-neutrinos?

TL;DR

This paper proposes that radiative decays of muon-neutrinos, under a mass-degenerate scheme, could simultaneously explain LSND's anti-electron-neutrino appearance and SuperKamiokande's muon-neutrino disappearance, unifying these observations.

Contribution

It introduces a neutrino decay model that accounts for both LSND and SuperKamiokande results within a single framework, linking neutrino decay to observed anomalies.

Findings

Decay probability consistent with LSND signal

Reproduces atmospheric neutrino deficit

Supports neutrino decay as a common explanation

Abstract

The radiative decay of muon-neutrinos in matter with a scheme of mass-degenerate neutrinos could be the common origin of the appearance of anti-electron-neutrinos at LSND and the disappearance of muons-neutrinos at SuperKamiokande. With the decay probability fixed by the LSND signal, the deficit of atmospheric neutrinos can be satisfactorily reproduced.