Li-7(n,gamma)Li-8 - Trigger reaction to a primordial r-process?

Details Li-7(n,gamma)Li-8 - Trigger reaction to a primordial r-process? Li-7(n,gamma)Li-8 - Trigger reaction to a primordial r-process?

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...344..464w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 344, Sept. 1, 1989, p. 464-470.

Physics

Nuclear Physics

46

Big Bang Cosmology, Lithium Isotopes, Nuclear Astrophysics, Activation Energy, Cross Sections, Heavy Elements, Neutrons, Nuclei (Nuclear Physics), Reaction Kinetics

Scientific paper

The cross section of the Li-7(n,gamma)Li-8 reaction was studied in the neutron energy range 25-420 keV to investigate the role of this reaction for the production of nuclei with A of 12 or greater in primordial nucleosynthesis. The experimental results are compared with theoretical model calculations. The reaction rate obtained is significantly smaller than previously suggested. This results in a reduced production of heavy elements and in reduced feeding of a proposed primordial r-process.

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