From 30 September to 4 October 2024, the 4th International School and Workshop on Few-Body Systems took place in Khabarovsk. The organizers were Pacific National University (PNU), the Joint Institute for Nuclear Research, and Dubna State University.

At the opening ceremony, welcoming remarks were made by the Pacific University Rector Yuri Marfin and the co-chairs of the school and workshop: a leading researcher at the Laboratory of Theoretical Physics at JINR Elena Kolganova and a leading researcher at the PNU Laboratory for Modelling of Quantum Processes Alexander Mazur. Director of the Laboratory of Nuclear Reactions at JINR Sergey Sidorchuk opened the scientific programme of the event with a presentation about experimental studies of low-nucleon systems at the Joint Institute. In his speech, Sergey Sidorchuk stressed that at this school he represents the only Russian team that conducts experimental research on secondary beams of radioactive nuclei. At the same time, the subject of their work, exotic nuclei near nucleon stability boundaries, is a unique testing ground for studying interactions in low-nucleon systems. “The school in Khabarovsk gathered mainly theorists, who absolutely need to find a common language with experimenters and have an idea of what can and cannot be observed in an experiment. Such meetings are very useful and extremely necessary, and therefore should become regular,” Sergey Sidorchuk said.

A senior researcher at Skobeltsyn Institute of Nuclear Physics (SINP) of Moscow State University Olga Rubtsova thanked the organizers of the event. “Combining a workshop and a scientific school turned out to be a great success. It allowed researchers who work on few-body systems in various physics areas to share new results and helped young novice researchers to get acquainted with the current issues and approaches in more detail. At the same time, the event provided an opportunity to discuss many topical issues of atomic and nuclear physics. Such communication is very energising. It inspires further research. We will look forward to new meetings and discussions.”

The workshop programme covered a wide range of topics:

• scattering theory for many-body quantum systems;
• recent achievements in accounting for Coulomb interaction in the few-body system theory;
• universal properties of few-body systems at ultra-low energies;
• Efimov and Thomas effects;
• development of numerical approaches to solving few-body bound-state, resonances, and scattering states;
• development of ab initio methods for solving nuclear physics problems, etc.

The event gathered more than 50 participants at the PNU, including students, scientists, and professors from JINR, Saint Petersburg State University, SINP, Al-Farabi Kazakh National University, PNU, and other universities of the Far Eastern Federal District.