Standard Article

Strong Interaction

  1. Frithjof Karsch1,2,
  2. Werner Vogelsang1

Published Online: 15 OCT 2009

DOI: 10.1002/3527600434.eap478.pub2

Encyclopedia of Applied Physics

Encyclopedia of Applied Physics

How to Cite

Karsch, F. and Vogelsang, W. 2009. Strong Interaction. Encyclopedia of Applied Physics. 95–118.

Author Information

  1. 1

    Brookhaven National Laboratory, Upton, NY, USA

  2. 2

    Universität Bielefeld, Fakultät für Physik, Bielefeld, Germany

Publication History

  1. Published Online: 15 OCT 2009


We present an introductory overview of the strong force, one of the four known fundamental forces in nature. We review the historical developments of strong interaction physics, which led to the formulation of quantum chromo dynamics (QCD), our accepted theory of strong interaction. We discuss the salient features of QCD, its experimental evidence, as well as some of the techniques used in QCD calculations.


  • quarks;
  • gluons;
  • hadrons;
  • flavors;
  • colors;
  • perturbative QCD;
  • lattice QCD