Light singlet neutrinos and the primordial nucleosynthesis

Details Light singlet neutrinos and the primordial nucleosynthesis Light singlet neutrinos and the primordial nucleosynthesis

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phlb..244..191k&link_type=abstract

Physics Letters B, Volume 244, Issue 2, p. 191-195.

Physics

98

Scientific paper

We study the production of light SU (2)-singlet neutrinos in the early universe. It is shown that a singlet neutrino vx may be brought into thermal equilibrium if it mixes with an ordinary doublet neutrino. The nucleosynthesis limit on the number of the light neutrinos then places more stringent limits on the oscillation parameters than what has been obtained in the earthbound experiments. The ve-vx oscillation still remains a viable solution for the solar neutrino problem.

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