France brazil collaboration on universal behavior of exotic nuclear systems – FBCUBES

The FBCUBES project aims to enhance our understanding of neutron-rich systems, which are crucial to contemporary nuclear physics. By employing few-body techniques alongside cutting-edge ab initio methods, we seek to address the challenges of modeling weakly bound neutron-rich systems. This research is motivated by the need to refine theoretical frameworks for nuclei situated at the frontier of Efimov physics, which offers a potentially unique perspective on the nature of nuclear forces. To achieve this goal, a Franco-Brazilian team of experts has come together for this proposal.
Our project is structured around two primary objectives: first, to develop a robust methodology for interpreting scattering features observed in experiments, such as those investigating the tetraneutron signal; and second, to construct a comprehensive nuclear chart that delineates the universal properties of many-neutron-plus-core systems, thereby providing a foundational reference for ongoing and future investigations.
The urgency of this research is amplified by recent advancements in neutron detection systems, which will deliver unprecedented insights by enabling the observation of multiple neutrons in coincidence. To map the landscape of many-neutron core nuclei, we will leverage artificial intelligence techniques to create meta-models for computationally expensive few-body solvers. This innovative approach will facilitate the identification of universal trends across various nuclear configurations.
The FBCUBES project will not only improve the reliability of predictions but also foster long-term collaboration, ultimately supporting the interpretation of data obtained at national and European nuclear physics facilities.