Physical origin of "chaoticity" of neutrino asymmetry

Details Physical origin of "chaoticity" of neutrino asymmetry Physical origin of "chaoticity" of neutrino asymmetry

1999-11-15

arxiv.org/abs/hep-ph/9911366v1

Phys.Lett. B477 (2000) 201-207

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, Latex, 4 eps figures, uses cite.sty

Scientific paper

10.1016/S0370-2693(00)00203-3

We consider the indeterminacy in the sign of the neutrino asymmetry generated by active-sterile neutrino oscillations in the early universe. The dynamics of asymmetry growth is discussed in detail and the indeterminacy in the final sign of the asymmetry is shown to be a real physical phenomenon. Recently published contradicting results are carefully considered and the underlying assumptions leading to the disagreement are resolved.

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