- #1
TeV
- 182
- 0
Back in 1960's ,one could frequently hear opinions/claims that neutrino rest mass is 0.Not a very small one ,but exactly=0.Therefore,a nutrino would just like photons propagate at light velocity through the space.
What has changed in a meantime (since decade -two), except better insight to Standard model ,that physics community completely abandoned such opinion and many are in search for a small ,but yet nonzero rest mass of the particle?
What has changed in a meantime (since decade -two), except better insight to Standard model ,that physics community completely abandoned such opinion and many are in search for a small ,but yet nonzero rest mass of the particle?