Document The Third European Summer School on Experimental Nuclear Astrophysics
M. Busso, R.G. Pizzone, C. Rolfs, C. Spitaleri and A. Tumino (eds)
EAS Publications Series, 27 (2007) 41-52
DOI: 10.1051/eas:2007143
An Introduction to Primordial Nucleosynthesis
A. CocCentre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), CNRS/IN2P3, Université Paris Sud, UMR 8609, Bâtiment 104, 91405 Orsay Campus, France
(Published online: 27 September 2007)
Abstract
Primordial nucleosynthesis is one of the three observational evidences
for the Big-Bang model. Even though they span a range of nine orders of
magnitude, there is indeed a good overall agreement between primordial
abundances of 4He, D, 3He and 7Li either deduced from observation or primordial
nucleosynthesis. This comparison was used for the determination of
the baryonic density of the Universe. For this purpose, it is now
superseded by the analysis of the CMB anisotropies. Big-Bang
nucleosynthesis remains, nevertheless, a valuable tool to probe
the physics of the early Universe.
© EAS, EDP Sciences 2007