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Big bang nucleosynthesis: Present status

Fields, Brian D.; Cyburt, Richard H.; Olive, Keith A. +1 more

Big bang nucleosynthesis (BBN) describes the production of the lightest nuclides via a dynamic interplay among the four fundamental forces during the first seconds of cosmic time. A brief overview of the essentials of this physics is given, and new calculations presented of light-element abundances through ⁶Li and ⁷Li, with u…