Updated Big Bang nucleosynthesis confronted to WMAP observations and to the abundance of light elements

  title={Updated Big Bang nucleosynthesis confronted to WMAP observations and to the abundance of light elements},
  author={A.Coc and E.Vangioni-Flam and Pierre Descouvemont and Abderrahim Adahchour and C.Angulo},
  journal={The Astrophysical Journal},
We improve Standard Big Bang Nucleosynthesis (SBBN) calculations taking into account new nuclear physics analyses (Descouvemont et al. 2003). Using a Monte-Carlo technique, we calculate the abundances of light nuclei versus the baryon to photon ratio.The results concerning omegab are compared to relevant astrophysical and cosmological observations. Consistency between WMAP, SBBN results and D/H data strengthens the deduced baryon density and has interesting consequences on cosmic chemical… 

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