Helium synthesis, neutrino flavors, and cosmological implications

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

May 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phrvl..44.1237s&link_type=abstract

Physical Review Letters, vol. 44, May 5, 1980, p. 1237-1240.

Astronomy and Astrophysics

Astrophysics

37

Big Bang Cosmology, Galactic Evolution, Helium, Neutrinos, Nuclear Fusion, Particle Production, Abundance, Astrophysics, Black Body Radiation, Interstellar Gas, Magellanic Clouds, Particle Theory

Scientific paper

The problem of the production of helium in the big bang is reexamined 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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