Big Bang Nucleosynthesis and neutrinos

Abstract

We present a brief review of Big Bang Nucleosynthesis (BBN). We discuss theoretical and observational uncertainties in deuterium and helium-4 primordial abundances and their implications for the determination of important cosmological parameters. We present, moreover, some recent results on active-sterile neutrino oscillations in the early universe and on their effects on BBN.

Comments: 10 pages, 2 figures, talk given at Beyond the Desert '03, Ringberg, 11-15 July 2003