>only one type of neutrino can be massless
they would stuck in that type then right? which is not what we see in mid - long baseline experiments, so I think all three types are massive?
they would stuck in that type then right? which is not what we see in mid - long baseline experiments, so I think all three types are massive?
As an analogy, you could think of a photon with circular polarization traveling through a vacuum. If you measured its linear polarization you would sometimes find that it is up-down and other times left-right. The photon is massless but is still able to oscillate between these two linear polarizations because it is propagating with a mixture of these two polarizations.