Experimental activities in few-body physics

TL;DR

This paper reviews recent experimental activities in few-body nuclear physics, highlighting advances in three- and four-nucleon scattering studies and the hyperon-nucleon interaction, including preliminary results and future perspectives.

Contribution

It provides an overview of recent experimental progress in few-nucleon and hyperon-nucleon interactions, including pioneering studies and future experimental plans.

Findings

Preliminary results from four-nucleon scattering experiments.

Enhanced understanding of hyperon-nucleon interactions.

Development of experimental techniques for few-body systems.

Abstract

Understanding the few-nucleon system remains one of the challenges in modern nuclear and hadron physics. Observables in few-nucleon scattering processes are sensitive probes to study the two and many-body interactions between nucleons in nuclei. In the past decades, several facilities provided a large data base to study in detail the three-nucleon interactions below the pion-production threshold by exploiting polarized proton and deuteron beams and large-acceptance detectors. Only since recently, the four-nucleon scattering process at intermediate energies has been explored. In addition, there is a focus to collect data in the hyperon-nucleon sector, thereby providing access to understand the more general baryon-baryon interaction. In this contribution, some recent results in the few-nucleon sector are discussed together with some of the preliminary results from a pioneering and exclusive study of the four-nucleon scattering process. Furthermore, this paper discusses the experimental activities in the hyperon sector, in particular, the perspectives of the hyperon program of PANDA.