The strong interactions
arXiv:2212.14791
Abstract
Introductory section for the volume 50 years of Quantum Chromodynamics (edited by F. Gross and E. Klempt, to be published in Eur. Phys. J. C)
The present article represents a small part of the entire volume which is accessible at arXiv:2212.11107. arXiv admin note: substantial text overlap with arXiv:1211.6777