Abstract
The astrophysical S-factor for 4He-3He radiative capture is calculated at very low-energies. We construct conserved two- and three-body electromagnetic currents, using minimal substitution in the explicit momentum dependence of the two- and three-cluster interactions. The realistic Argonne v 18 two-nucleon and Urbana IX or Tucson-Melbourne three-cluster interactions are considered for calculation. The zero energy S-factor is found to be S(0)=0.563 (0.581) keV b, with (without) three-body interactions, in satisfactory agreement with other theoretical results and experiment data.
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Sadeghi, H. The astrophysical S-Factor of 4He(3He,γ)7Be reaction at very low-energies. Astrophys Space Sci 347, 261–269 (2013). https://doi.org/10.1007/s10509-013-1523-1
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DOI: https://doi.org/10.1007/s10509-013-1523-1