Helium synthesis, neutrino flavors, and cosmological implications

Details Helium synthesis, neutrino flavors, and cosmological implications Helium synthesis, neutrino flavors, and cosmological implications

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979stin...8022197s&link_type=abstract

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Physics

Big Bang Cosmology, Helium, Neutrinos, Universe, Annihilation Reactions, Galactic Clusters, Magellanic Clouds, Nuclear Fusion, Quarks, Theoretical Physics

Scientific paper

The problem of the production of helium in big bang cosmology is re-examined in the light of several recent astrophysical observations. These data, and theoretical particle physics considerations, lead to some important inconsistencies in the standard big bang model and suggest that a more complicated picture is needed. Thus, recent constraints on the number of neutrino flavors, as well as constraints on the mean density (openness) of the universe, need not be valid.

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