Superluminal neutrino and spontaneous breaking of Lorentz invariance
Generally speaking, the existence of a superluminal neutrino can be attributed either to re-entrant Lorentz violation at ultralow energy from intrinsic Lorentz violation at ultrahigh energy or to spontaneous breaking of fundamental Lorentz invariance (possibly by the formation of a fermionic condensate). Re-entrant Lorentz violation in the neutrino sector has been discussed elsewhere. Here, the focus is on mechanisms of spontaneous symmetry breaking.
- Pub Date:
- September 2011
- High Energy Physics - Phenomenology;
- High Energy Physics - Experiment
- 4 pages, v4: published version