Primordial nucleosynthesis redux

  title={Primordial nucleosynthesis redux},
  author={Terry P. Walker and Terry P. Walker and Gary Steigman and David N. Schramm and Keith A. Olive and Ho-Shik Kang},
  journal={The Astrophysical Journal},
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… 
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Challenges to the standard model of Big Bang nucleosynthesis.
  • G. Steigman
  • Physics, Medicine
    Proceedings of the National Academy of Sciences of the United States of America
  • 1993
Increased accuracy in the estimate of primordial 4He and observations of Be and B in Pop II stars are offering new challenges to the standard model and suggest that no new light particles may be allowed.
Primordial Nucleosynthesis and Finite Temperature QED
Abundances of light nuclei formed during primordial nucleosynthesis are predicted by Standard Big Bang Model. The latest data from WMAP, with precision's higher than ever before, provides a