Resonant effect in two particles fusion-evaporation way of the reaction 15N + 12C: case of two alpha particles

This study deals with resonant absorption effects in the fusion-evaporation way of two alpha particles. The nuclear reaction of heavy-light nuclei with closed or almost closed shell models 15N and 12C has been achieved. For 19F way (2 alpha particles), many resonant structures have been identified through the calculation of their cross sections, for an energy value E(15N) equal or superior to 50 MeV. The experimental results have been compared to existing theoretical shell models with good agreement. (author)