par Hilaire, Stéphane;Goriely, Stéphane 
Référence Springer proceedings in physics, 254, page (3-15)
Publication Publié, 2021-04-01
Référence Springer proceedings in physics, 254, page (3-15)
Publication Publié, 2021-04-01
Article révisé par les pairs
| Résumé : | Nuclear reaction modelling relies on three main theoretical models connected together, namely the optical model, the pre-equilibrium model and the compound nucleus model. Each of these models makes use of various input data, which can either be directly obtained from experiment or from experimentally-based systematics, fine-tuned to reproduce data of interest, or deduced from more fundamental bases. For well measured nuclei, one usually adopts phenomenological approaches consisting in fine-tuning input parameters to fit at best important experimental measurements. However, when dealing with reactions on exotic targets far from the valley of stability, alternatives to risky input data extrapolation have to be considered. Thanks to the high computer power available nowadays, all the input data required to model a nuclear reaction can now be (and have been) microscopically (or semi-microscopically) determined starting from the information provided by a nucleon–nucleon effective interaction. This concerns nuclear masses, optical model potential, total nuclear level densities, photon strength functions, as well as fission paths. Both the quality of these ingredients and the impact of using them instead of the usually adopted phenomenological parameters will be discussed. Perspectives will also be drawn for the coming years on the improvement one can expect with respect to the quality of these ingredients or to the theoretical models using them. |
