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Article Contents

ABSTRACT

1.INTRODUCTION
1.1.Baryon Asymmetry - Nucleon Abundance
1.2.The Expansion Rate At BBN
1.3.Neutrino Asymmetry

2.AN OVERVIEW OF PRIMORDIAL NUCLEOSYNTHESIS
2.1.Nonstandard BBN
2.2.Simple - But Accurate - Fits To The Primordial Abundances
2.3.SBBN-Predicted Primordial Abundances

3.OBSERVATIONALLY INFERRED PRIMORDIAL ABUNDANCES
3.1.The Primordial Deuterium Abundance
3.2.The Primordial Helium-3 Abundance
3.3.The Primordial Helium-4 Abundance
3.4.The Primordial Lithium-7 Abundance

4.DISCUSSION
4.1.SBBN
4.2.Lithium
4.3.Non-Standard Expansion Rate: S neq 1 (xie = 0)
4.4.Non-Zero Lepton Number: xie neq 0 (S = 1)
4.5.An Example: Alternate Relic Abundances for D and 4He
4.6.Other Non-Standard Models

5.SUMMARY AND CONCLUSIONS

REFERENCES