Erm, actually, neutrinos aren’t massless. The Super-Kamiokande experiment has observed neutrinos to oscillate between electron-muon-tau lepton family numbers (or flavors), which means that they experience time, which means that they necessarily travel slower than the speed of light, which implies that they have a nonzero rest mass.
rtxn@lemmy.world 3 weeks ago
Erm, actually, neutrinos aren’t massless. The Super-Kamiokande experiment has observed neutrinos to oscillate between electron-muon-tau lepton family numbers (or flavors), which means that they experience time, which means that they necessarily travel slower than the speed of light, which implies that they have a nonzero rest mass.