Primordial Nucleosynthesis, Cosmic Microwave Background and Neutrinos

Abstract

We report the results of a recent likelihood analysis combining the primordial nucleosynthesis and the BOOMERanG and MAXIMA-1 data on cosmic microwave background radiation anisotropies. We discuss the possible implications for relic neutrino background of a high value for the baryonic matter content of the universe, larger than what is expected in a standard nucleosynthesis scenario.

Comments: 3 pages, 1 figure, some typos corrected, one reference added, presented by G. Mangano at NOW 2000, Europhysics Neutrino Oscillation Workshop, Otranto 2000