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Sterile Neutrinos in Big Bang Nucleosynthesis

R. Buras
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Abstract

We investigate analytically the evolution of the primordial neutrino asymmetry caused by active-sterile neutrino oscillations. In particular, we concentrate on possible chaotic oscillations of the asymmetry. For a certain range of parameters, we find that the asymmetry indeed oscillates, provided we neglect the momentum distribution.

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R. Buras. 2000-02-08. Sterile Neutrinos in Big Bang Nucleosynthesis. https://arxiv.org/abs/hep-ph/0002086

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