Conveners
4 Big-bang nucleosynthesis
- Carmen Angulo (Université catholique de Louvain)
Alain Coc
(CSNSM,CNRS/IN2P3 and Universite Paris Sud)
26/06/2006, 17:10
Cosmology and big bang nucleosynthesis
Invited
Primordial nucleosynthesis (BBN) has been used for the determination of
the baryonic density of the universe. It has now been superseded, for this
purpose, by the more precise determination provided by the analysis
of the CMB anisotropies by WMAP. Nevertheless, BBN is still very interesting
as when we look back into the history of the universe, this is the
last era for which, in...
Donald Lubowich
(Hofstra University, Hempstead, New York)
26/06/2006, 17:40
Oral contribution
All the astronomical observations of deuterium are consistent with a cosmological origin of D. Deuterium has
been extensively studied because it is not produced via stellar nucleosynthesis and is thought to be primarily
produced via the big-bang so its abundance will only decrease with time unless there are additional sources
of D. The D/H ratio is an important prediction of standard...
Fairouz Hammache
(IPN-Orsay)
26/06/2006, 18:00
Cosmology and big bang nucleosynthesis
Oral contribution
The recent observations of non-negligible amounts of 6Li in old halo stars [1] have
renewed interest in the Big-Bang Nucleosynthesis (BBN) of 6Li. The deduced
primordial 6Li abundance was found to be unexpectedly large compared to the BBN
predictions. One important ingredient in the BBN predictions is the low-energy
D(a,g)6Li cross section. Up to now, the only available experimental...
