Study of 7Be+d reactions for Standard Big Bang Nucleosynthesis

Details Study of 7Be+d reactions for Standard Big Bang Nucleosynthesis Study of 7Be+d reactions for Standard Big Bang Nucleosynthesis

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005nupha.758..775a&link_type=abstract

Nuclear Physics A, Volume 758, p. 775-778.

Physics

Nuclear Physics

Scientific paper

The recent WMAP results tightly constrain the baryon density in the universe, which in turn constrains the light element abundance predicted in Standard Big Bang Nucleosynthesis (SBBN). There is a discrepance in the 7Li abundance which cannot be explained by uncertainties in the main reactions included in the SBBN. Up to now, the influence of the reaction 7Be(d,p)2α has been neglected. We have investigated this reaction at SBBN energies using a radioactive 7Be beam and a (CD2)n self-supporting target at the CYCLONE RIB facility at Louvain-la-Neuve. The experimental method is briefly described. Preliminary results and consequences for primordial nucleosynthesis are discussed.

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