Big Bang Nucleosynthesis in the Post-WMAP Era

Journal Article · Fri Dec 10 04:00:00 EST 2004 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1848327· OSTI ID:20630490

Olive, Keith A ^[1]

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1. William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, MN 55455 (United States)

An overview of the standard model of big bang nucleosynthesis (BBN) in the post-WMAP era is presented. With the value of the baryon-to-photon ratio determined to relatively high precision by WMAP, standard BBN no longer has any free parameters. In this context, the theoretical prediction for the abundances of D, 3He, 4He, and 7Li is discussed. The observational determination of the light nuclides is also discussed. While, the D and 4He observations are concordant with BBN predictions, 7Li remains discrepant with the CMB-preferred baryon density and possible explanations are reviewed. Finally, moving beyond the standard model, primordial nucleosynthesis constraints on early universe and particle physics are also briefly discussed.

• OSTI ID: 20630490
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 743; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
COSMIC RADIATION
COSMOLOGY
DEUTERIUM
ELEMENT ABUNDANCE
FORECASTING
HELIUM 3
HELIUM 4
LITHIUM
LITHIUM 7
NUCLEOSYNTHESIS
PHOTONS
RELICT RADIATION
STANDARD MODEL
UNIVERSE