Superluminal neutrino, flavor, and relativity
Abstract
Modified neutrino dispersion relations, which still obey the relativity principle, can have both a superluminal (muontype) neutrino and a luminal (electrontype) neutrino, as long as neutrinomass effects can be neglected. The idea is to allow for flavordependent deformed Lorentz transformations and an appropriate hierarchy of energy scales. If OPERA’s result on a superluminal velocity of the muonneutrino is confirmed, the model has a matching superluminal velocity of the corresponding charged lepton, the muon, at equal particle energy. Assuming that this model is not already ruled out, new TeVscale effects in the muon sector are predicted. Also discussed is a different model with a superluminal sterile neutrino propagating in the usual 4 spacetime dimensions.
 Publication:

Physical Review D
 Pub Date:
 January 2012
 DOI:
 10.1103/PhysRevD.85.016011
 arXiv:
 arXiv:1110.2146
 Bibcode:
 2012PhRvD..85a6011K
 Keywords:

 11.30.Cp;
 03.30.+p;
 14.60.St;
 Lorentz and Poincare invariance;
 Special relativity;
 Nonstandardmodel neutrinos righthanded neutrinos etc.;
 High Energy Physics  Phenomenology;
 High Energy Physics  Experiment
 EPrint:
 8 pages, v7: published version