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Primordial nucleosynthesis redux
Walker, Terry P.; Steigman, Gary; Schramm, David N.; Olive, Keith A.; Kang, Ho-Shik
AA(Harvard-Smithsonian Center for Astrophysics, Cambridge, MA; Ohio State University, Columbus), AB(Ohio State University, Columbus), AC(Ohio State University, Columbus), AD(NASA/Fermilab Astrophysics Center, Batavia; Chicago, University, IL), AE(Minnesota, University, Minneapolis; CNRS, Laboratoire d'Annecy-le-Vieux de Physique des Particules, France)
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 376, July 20, 1991, p. 51-69. (ApJ Homepage)
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NASA/STI Keywords:
Abundance, Big Bang Cosmology, Elementary Particles, Nuclear Fusion, Universe, Deuterium, Helium Isotopes, Neutrons, Nuclear Reactions, Radiative Lifetime
Bibliographic Code:


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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