Astrophysical S factor for 9Be(p,γ)10B

Details Astrophysical S factor for 9Be(p,γ)10B Astrophysical S factor for 9Be(p,γ)10B

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999phrvc..60c5801s&link_type=abstract

Physical Review C (Nuclear Physics), Volume 60, Issue 3, September 1999, id. 035801

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Radiative Capture, Other Resonances, Hydrostatic Stellar Nucleosynthesis, 6<=A<=19

Scientific paper

The 9Be(p,γ)10B reaction plays an important role in primordial and stellar nucleosynthesis of light elements in the p shell, but the energy dependence of S(E) has not been well understood. We reanalyze the existing 9Be(p,γ)10B experimental data within the framework of the R-matrix method. The direct capture part of the S factor is calculated using the experimentally measured asymptotic normalization coefficients for 10B-->9Be+p. The fitted parameters of the low-lying 10B resonances are also required to be consistent with previous measurements of 6Li(α,γ)10B. A good simultaneous fit to both radiative capture reactions is found, in contrast to previous analyses. These results demonstrate that experimentally measured asymptotic normalization coefficients, coupled to the R-matrix method, can provide a reasonable determination of direct radiative capture rates, even when the captured proton is tightly bound in the final nucleus.

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