12C(15N, 14N)13C REACTION MECHANISMS AT ENERGY 81 MeV

The new experimental data of the C-12(N-15, N-14)C-13 reaction cross-sections at the energy E-lab(N-15) = 81 MeV were measured for the ground and excited states of N-14 and C-13 nuclei. The experimental data were analyzed within the coupled-reaction-channels method (CRC) using channels-coupling scheme with the N-15 + C-12 elastic scattering and one- as well as two-step transfers of nucleons and clusters performing CRC-calculations with the Woods - Saxon potentials (WS) for the entrance and exit reaction channels. The WS potential parameters for the C-12 + N-15 nuclear interaction were taken from the previously studied elastic and inelastic scattering of N-15 ions by C-12 nuclei at the energy 81 MeV, when as deduced previously from CRC-analysis of the N-15 + C-12 elastic and inelastic scattering data, when as the WS potential parameters for the N-14 + C-13 reaction exit channel were deduced from fitting of the C-12(N-15, N-14)C-13 reaction data. The spectroscopic factors (amplitudes) of transferred in the reaction nucleons and clusters, used in the CRC-calculations, were computed within translational invariant shell model of 1p-shell. It was found, that transfers of neutrons (n) and deuterons (d) dominate in this reaction. Multi-step transfers of nucleons and clusters give small contributions to the reaction data.