Primordial Nucleosynthesis: an updated comparison of observational light nuclei abundances with theoretical predictions
G. Miele, O. Pisanti
TL;DR
This paper reviews and compares the latest Standard Big Bang Nucleosynthesis predictions with astrophysical observations of light nuclei, focusing on baryon fraction and neutrino number.
Contribution
It provides an updated analysis of BBN predictions against observational data, emphasizing baryon and neutrino parameters.
Findings
Consistent ranges for baryon fraction from BBN and observations
Constraints on the effective number of neutrinos
Updated light nuclei abundance estimates
Abstract
An up to date review of Standard Big Bang Nucleosynthesis predictions vs the astrophysical estimates of light nuclei abundances is here presented. In particular the analysis reports the expected ranges for baryon fraction and effective number of neutrinos as obtained by BBN only.
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