Examination of the astrophysical S-factors of the radiative proton capture on 2H, 6Li, 7Li, 12C and 13C

Abstract

Astrophysical S-factors of radiative capture reactions on light nuclei have been calculated in a two-cluster potential model, taking into account the separation of orbital states by the use of Young schemes. The local two-body potentials describing the interaction of the clusters were determined by fitting scattering data and properties of bound states. The many-body character of the problem is approximatively accounted for by Pauli forbidden states. An important feature of the approach is the consideration of the dependence of the interaction potential between the clusters on the orbital Young schemes, which determine the permutation symmetry of the nucleon system. Proton capture on 2H, 6Li, 7Li, 12C, and 13C was analyzed in this approach. Experimental data at low energies were described reasonably well when the phase shifts for cluster-cluster scattering, extracted from precise data, were used. This shows that decreasing the experimental error on differential elastic scattering cross sections of light nuclei at astrophysical energies is very important also to allow a more accurate phase shift analysis. A future increase in precision will allow more definite conclusions regarding the reaction mechanisms and astrophysical conditions of thermonuclear reactions.

40p., 9 fig., 83 ref. arXiv admin note: substantial text overlap with arXiv:1005.1794, arXiv:1112.1760, arXiv:1005.1983

References in corpus (1)

• Astrophysical S-Factor of p2H Radiative Capture

Cited by in corpus (16)

• Thermonuclear Processes for Three Body System in the Potential Cluster Model
• The radiative neutron capture on 2H, 6Li, 7Li, 12C and 13C at astrophysical energies
• 8li(n,g)9li reaction at superlow energies
• The 7Li(n,gamma)8Li Radiative Capture at Astrophysical Energies
• Radiative neutron capture on 9be, 14c, 14n, 15n and 16o at thermal and astrophysical energies
• Neutron capture by 15N nucleus at astrophysical energies
• Study of the nucleon radiative captures 8Li(n,gamma)9Li, 9Be(p,gamma)10B, 10Be(n,gamma)11Be, 10B(p,gamma)11C, and 16O(p,gamma)17F at thermal and astrophysical energies
• Study of the neutron and proton capture reactions 10,11b(n, g), 11b(p, g), 14c(p, g), and 15n(p, g) at thermal and astrophysical energies
• New Measurements and Phase Shift Analysis of p16O Elastic Scattering at Astrophysical Energies
• New Theoretical Results for Radiative 3H(p, γ)4He, 3He(2H, γ)5Li, 4He(2H, γ)6Li, 4He(3H, γ)7Li, and 4He(3He, γ)7Be Captures At Astrophysical Energies
• Astrophysical S-factor of the radiative proton capture on 14C at low energies
• New Results for the p7Be-->8Bgamma Astrophysical S-factor from 10 keV to 5 MeV and Reactions Rate from 0.01 to 10 T9
• Radiative n11B capture accounting 21 and 430 keV resonances
• The radiative 10Be(n,g)11be capture at thermal and astrophysical energies
• Radiative 3He(2H,g)5Li capture at low deuterium energy
• The radiative proton capture on 16O at astrophysical energies