Primordial nucleosynthesis redux

Details Primordial nucleosynthesis redux Primordial nucleosynthesis redux

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...376...51w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 376, July 20, 1991, p. 51-69.

Astronomy and Astrophysics

Astrophysics

882

Abundance, Big Bang Cosmology, Elementary Particles, Nuclear Fusion, Universe, Deuterium, Helium Isotopes, Neutrons, Nuclear Reactions, Radiative Lifetime

Scientific paper

The abundances of D, He-3, He-4, and Li-7, are presently recalculated within the framework of primordial nucleosynthesis in the standard hot big band model, in order to estimate the primordial abundances of the light elements. A comparison between theory and experiment demonstrates the consistency of standard model predictions; the baryon density parameter is constrained on the basis of a nucleon-to-photon ratio of 2.8-4.0. These bounds imply that the bulk of the baryons in the universe are dark, requiring that the universe be dominated by nonbaryonic matter.

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