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Table of Contents

ABSTRACT

INTRODUCTION

2.A BBN PRIMER
2.1.Early-Universe Expansion Rate
2.2.The Baryon Density

3.BBN ABUNDANCES

4.Relic Abundances
4.1.Deuterium - The Baryometer Of Choice
4.2.Helium-3
4.3.Lithium-7
4.4.Helium-4 - The BBN Chronometer

5.THE BARYON DENSITY FROM SBBN

6.THE BARYON DENSITY FROM THE CBR

7.NONSTANDARD BBN: S neq 1, Nnu neq 3

8.NONSTANDARD CBR: S neq 1, Nnu neq 3

9.SUMMARY AND CONCLUSIONS

REFERENCES