Comment by drdeca

Hm, one thing I’m unclear on is…

Well, from what I understand, the mass eigenstates and the flavor eigenstates for neutrinos aren’t the same, so a mass eigenstate is a linear combination of the different flavor eigenstates, and a flavor eigenstate is a linear combination of the different mass eigenstates,

But, in these experiments with the electron neutrino, which is a flavor eigenstate, well, it isn’t in a mass eigenstate, so, what does that say about the momentum and such?

And like, when they use this to get a bound on the mass, is this like, a bound on the mass of the largest of the 3 mass eigenstates, or of the expected value of mass when in the electron neutrino flavor eigenstate, or what?