Still Few-Nucleon Systems - After So Many Years

TL;DR

This paper reviews the progress and ongoing challenges in understanding three- and four-nucleon systems, emphasizing nuclear potentials, calculation issues, and discrepancies between theory and experiment, with a historical perspective.

Contribution

It provides a personal overview of the evolution, current status, and unresolved problems in few-nucleon systems, highlighting conceptual and technical issues in nuclear physics.

Findings

Discrepancies remain between theoretical predictions and experimental data.

Historical evolution of the field offers insights into current challenges.

Technical issues in calculations hinder precise modeling of few-nucleon systems.

Abstract

Three- and four-nucleon reactions are discussed. The focus is on the notion of nuclear potentials, on conceptual and technical issues of calculations and on unresolved problems between existing theoretical predictions and experimental data. The special focus is on some historic aspects of the evolution of the field. The views presented have a strong personal bias.