Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-08-04
JCAP0412:010,2004
Astronomy and Astrophysics
Astrophysics
LaTeX, 83 pages, 30 .eps figures. Some typos corrected, few Refs., 1 paragraph and 1 appendix added, matches version to be pub
Scientific paper
10.1088/1475-7516/2004/12/010
We analyze in details the standard Primordial Nucleosynthesis scenario. In particular we discuss the key theoretical issues which are involved in a detailed prediction of light nuclide abundances, as the weak reaction rates, neutrino decoupling and nuclear rate modeling. We also perform a new analysis of available data on the main nuclear processes entering the nucleosynthesis reaction network, with particular stress on their uncertainties as well as on their role in determining the corresponding uncertainties on light nuclide theoretical estimates. The current status of theoretical versus experimental results for 2H, 3He, 4He and 7Li is then discussed using the determination of the baryon density as obtained from Cosmic Microwave Background anisotropies.
Esposito Salvatore
Iocco Fabio
Mangano Gianpiero
Miele Gennaro
Pisanti Ofelia
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