CNO and 6Li from big-bang nucleosynthesis-Impact of unmeasured reaction rates

Details CNO and 6Li from big-bang nucleosynthesis-Impact of unmeasured reaction rates CNO and 6Li from big-bang nucleosynthesis-Impact of unmeasured reaction rates

Apr 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990phrvd..41.2472m&link_type=abstract

Physical Review D (Particles and Fields), Volume 41, Issue 8, 15 April 1990, pp.2472-2478

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Origin, Formation, And Abundances Of The Elements, 3H-, 3He-, And 4He-Induced Reactions, Elementary Particle Processes

Scientific paper

Rates for a number of nuclear reactions not studied in the laboratory are crucial for predicting the outcome of big-bang nucleosynthesis. It is shown in the present investigation that the mass fraction of CNO elements produced in neutron-rich zones in inhomogeneous nucleosynthesis (other parameters fixed) spans almost 3 orders of magnitude depending on the unmeasured rate of 8Li(α,n)11B. The possibility of producing observable quantities of primordial 6Li via 3H(3He,γ)6Li is discussed for the first time, and finally it is reported that helium production through 2H(2H, γ)4He is negligible in all nucleosynthesis scenarios, in spite of recent measurements increasing the low-energy rate by a factor 32.

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