Theoretical Prediction of Neutrino Mass

In the Standard Model, all neutrinos are massless fermions. But from various recent experiments it is well-established that neutrinos undergo flavour oscillations, violating lepton flavour conservation and implying that neutrinos have non-zero mass. The measurement of the absolute neutrino masses is a fundamental unsolved problem in the particle physics till today. In this article, we calculate the mass of different neutrino flavor states which may be verified in future