The reaction d(α,γ)6Li at low energies and the primordial nucleosynthesis of 6Li

Details The reaction d(α,γ)6Li at low energies and the primordial nucleosynthesis of 6Li The reaction d(α,γ)6Li at low energies and the primordial nucleosynthesis of 6Li

Apr 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996phrvc..53.1967c&link_type=abstract

Physical Review C (Nuclear Physics), Volume 53, Issue 4, April 1996, pp.1967-1970

Physics

Nuclear Physics

9

Elastic And Inelastic Scattering, Elastic And Inelastic Scattering, Big Bang Nucleosynthesis

Scientific paper

We have searched for the reaction d(α,γ)6Li at an α-d center-of-mass energy of 53 keV. An upper limit on the reaction S factor is 2.0×10-7 MeV b at the 90% confidence level, corresponding to a limit on the synthesis of 6Li from a standard big bang of 0.9% of the present abundance for a total baryon-to-photon ratio 2.86<η10<3.77. Equivalently, the 6-7Li isotopic abundance ratio immediately after a standard big bang is constrained to be less than 0.85%, considerably less than a recent measurement of this ratio in a metal-poor, Population II halo star.

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