With a view toward describing reactions of intermediate-mass nuclei from first principles, we present first results for the norm and Hamiltonian overlaps (kernels) for the p-α, p-16O, and p-20Ne cluster systems using realistic nucleon–nucleon interactions. This is achieved in the framework of a new ab initio approach that combines the symmetry-adapted no-core shell model (SA-NCSM) with the resonating group method (RGM). In this model, a physically relevant basis based on the SU(3) symmetry is used. The structure of the clusters is provided by the ab initio SA-NCSM, which enables the description of spatially enhanced nuclear configurations and heavier nuclei, by exploiting symmetries known to dominate in nuclei. Here, we discuss the applicability and efficacy of this approach.
Publication Source (Journal or Book title)
Springer Proceedings in Physics
Mercenne, A., Launey, K., Escher, J., Dytrych, T., & Draayer, J. (2021). New Symmetry-Adapted ab initio Approach to Nuclear Reactions for Intermediate-mass Nuclei. Springer Proceedings in Physics, 254, 73-79. https://doi.org/10.1007/978-3-030-58082-7_9