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Neutrino oscillations and the early universe |
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| Authors: | Daniela P. Kirilova |
| Affiliation: | (1) Institute of Astronomy, Bulgarian Academy of Sciences, blvd. Tsarigradsko Shosse 72, Sofia, Bulgaria;(2) Physique Theorique, Universite Libre de Bruxelles, Boulevard du Triomphe, 1050 Bruxelles, Belgium;(3) Abdus Salam Internatonal Centre for Theoretical Physics, Strada Costiera 11, 34014 Trieste, Italy |
| Abstract: | The observational and theoretical status of neutrino oscillations in connection with solar and atmospheric neutrino anomalies is presented briefly. The effect of neutrino oscillations on the evolution of the early Universe is discussed in detail. A short review is given of the standard Big Bang Nucleosynthesis (BBN) and the influence of resonant and non-resonant neutrino oscillations on active neutrinos and on primordial synthesis of He-4. BBN cosmological constraints on neutrino oscillation parameters are discussed. |
| Keywords: | Neutrino anomalies neutrino oscillations cosmological role of neutrino mass and mixings BBN constraints on neutrino mixing |
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