Neutrino oscillations in dense neutrino gases
Abstract
We consider oscillations of neutrinos under conditions in which the neutrino density is sufficiently large that neutrino-neutrino interactions cannot be neglected. A formalism is developed to treat this highly nonlinear system. Numerical analysis reveals a rich array of phenomena. In certain gases, a self-induced Mikheyev-Smirnov-Wolfenstein effect occurs in which electron neutrinos are resonantly converted into muon neutrinos. In another relatively low-density gas, an unexpected parametric resonant conversion takes place. Finally, neutrino-neutrino interactions maintain coherence in one system for which a priori one expected decoherence.
- Publication:
-
Physical Review D
- Pub Date:
- August 1993
- DOI:
- 10.1103/PhysRevD.48.1462
- Bibcode:
- 1993PhRvD..48.1462S
- Keywords:
-
- 95.30.Cq;
- 13.15.-f;
- 14.60.Gh;
- Elementary particle processes