Astrophysical S factor of 3H(α,γ) 7Li

Details Astrophysical S factor of 3H(α,γ) 7Li Astrophysical S factor of 3H(α,γ) 7Li

Jun 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987phlb..192...55s&link_type=abstract

Physics Letters B, Volume 192, Issue 1-2, p. 55-58.

Physics

37

Scientific paper

The reaction 3H(α,γ) 7Li has been investigated for ECM = 79-464 KeV with the use of Ge(Li) detectors. The astrophysical S(E) factor is found to be energy-dependent, rising smoothly to S(0) = 0.14+/-0.02 keV b at zero energy. This is a factor of two higher than the value incorporated in the compilations. The energy dependence of the data is consistent with recent microscopic and direct capture model calculations. The higher 7Li production rate is of interest to primordial nucleosynthesis.

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