Large neutrino asymmetries from neutrino oscillations
- 15 May 1996
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 53 (10) , R5349-R5353
- https://doi.org/10.1103/physrevd.53.r5349
Abstract
We reexamine neutrino oscillations in the early universe. Contrary to previous studies, we show that large neutrino asymmetries can arise due to oscillations between ordinary neutrinos and sterile neutrinos. This means that the big bang nucleosynthesis (BBN) bounds on the mass and mixing of ordinary neutrinos with sterile neutrinos can be evaded. Also, it is possible that the neutrino asymmetries can be large enough (≳10%) to have a significant effect on BBN through nuclear reaction rates.Keywords
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This publication has 27 references indexed in Scilit:
- An Alternative Analysis of the LSND Neutrino Oscillation Search Data onPhysical Review Letters, 1995
- Candidate Events in a Search forOscillationsPhysical Review Letters, 1995
- Update on the measurement of the solar neutrino flux with the Homestake chlorine detectorNuclear Physics B - Proceedings Supplements, 1995
- Atmospheric ratio in the multi-GeV energy rangePhysics Letters B, 1994
- Results from SAGE (The Russian-American gallium solar neutrino experiment)Physics Letters B, 1994
- GALLEX results from the first 30 solar neutrino runsPhysics Letters B, 1994
- Observation of a small atmospheric vμ/ve ratio in KamiokandePhysics Letters B, 1992
- Measurement of atmospheric neutrino composition with the IMB-3 detectorPhysical Review Letters, 1991
- Bounds on sterile neutrinos from nucleosynthesisPhysics Letters B, 1990
- Consequences of Majorana and Dirac Mass Mixing for Neutrino OscillationsPhysical Review Letters, 1980