Big-bang Nucleosynthesis Predictions for Precision Cosmology
نویسندگان
چکیده
The determination of the primeval deuterium abundance has opened a precision era in big-bang nucleosynthesis (BBN), making accurate predictions more important than ever before. We present in analytic form new, more precise predictions for the light-element abundances and their error matrix. Using our predictions and the primeval deuterium abundance we infer a baryon density of Bh = 0:020 0:002 (95% cl) and find no evidence for stellar production (or destruction) of 3He beyond burning D to 3He. Conclusions about 4He and 7Li currently hinge upon possible systematic error in their measurements. Subject headings: nuclear reactions, nucleosynthesis, abundances – cosmology : theory
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