NUCLEAR PHYSICS |
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S-Factor of the 3H(α,γ)7Li Reaction at Astrophysical Energies |
H. Sadeghi** |
Department of Physics, Faculty of Science, Arak University, Arak 8349-8-38156, Iran
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Cite this article: |
H. Sadeghi 2013 Chin. Phys. Lett. 30 102501 |
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Abstract The astrophysical S-factor for α-3H radiative capture is calculated at astrophysical energies. We construct conserved two- and three-body electromagnetic currents, using minimal substitution in the explicit momentum dependence of the two- and three-nucleon interactions. The realistic Argonne v18 two-nucleon and Urbana IX or Tucson–Melbourne three-nucleon interactions are considered for calculation. By extrapolation of results for the astrophysical S-factor at zero energy, the energy in the order of 1 keV and less is found to be S(0)=0.107(0.112) keV?b, with(without) three-body interactions in satisfactory agreement with other theoretical results and experimental data.
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Received: 18 March 2013
Published: 21 November 2013
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