Suppressed neutrino oscillations and large lepton asymmetries

Details Suppressed neutrino oscillations and large lepton asymmetries Suppressed neutrino oscillations and large lepton asymmetries

2004-09-27

arxiv.org/abs/hep-ph/0409299v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure, talk given by F. Takahashi at the 12th International Conference on Supersymmetry and Unification of Fundame

Scientific paper

It is shown that hypothetical neutrino-majoron coupling can suppress neutrino
flavor oscillations in the early universe, in contrast to the usual weak
interaction case. This reopens a window for a noticeable cosmological lepton
asymmetry which is forbidden for the large mixing angle solution in the case of
standard interactions of neutrinos.

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