Oscillating Massless Neutrinos

Abstract

The phenomenon of neutrino oscillations requires that not only should neutrinos be massive but that these masses be unique. How they acquire this mass remains an open question. Various mechanisms have been proposed to explain this phenomenon of neutrino oscillations. Herein, we propose – the simplest imaginable – alternative mechanism which operates via coupling the massless neutrino to a massive Dirac scalar. This massive Dirac scalar is a new hypothetical particle that we – unfortunately – can not observe directly because of its point-particle nature. Further, this massive Dirac scalar comes in as an integral part of the neutrino system – it [massive Dirac scalar] oscillates between three states, thus leading to the observed neutrino oscillations. This model predicts neutrinos are Dirac in nature and not Majorana.