Quantum Chromodynamics

Quantum chromodynamics (QCD) is the theory of the strong interaction between quarks and gluons, the fundamental particles that make up composite hadrons such as the proton, neutron and pion. QCD is a type of quantum field theory called a non-abelian gauge theory, with symmetry group SU(3). The QCD analog of electric charge is a property called color. Gluons are the force carrier of the theory, like photons are for the electromagnetic force in quantum electrodynamics. The theory is an important part of the Standard Model of particle physics.

QCD exhibits two main properties:

  • Color confinement-This is a consequence of the constant force between two color charges as they are separated: In order to increase the separation between two quarks within a hadron, ever-increasing amounts of energy are required. Eventually this energy produces a quark–antiquark pair, turning the initial hadron into a pair of hadrons instead of producing an isolated color charge. Although analytically unproven, color confinement is well established from lattice QCD calculations and decades of experiments.
  • Asymptotic freedom- A steady reduction in the strength of interactions between quarks and gluons as the energy scale of those interactions increases (and the corresponding length scale decreases).

 

  • Quantum Electrodynamics
  • Effective Field Theories
  • Lattice QCD
  • Perturbative QCD
  • Chiral Perturbation Theory
  • Dense Quark Matter
  • Correlations & Fluctuations

Related Conference of Quantum Chromodynamics

October 06-07, 2025

6th International Conference on Physics

Paris, France
December 01-02, 2025

9th International Meeting on Fluid Dynamics & Fluid Mechanics

Vancouver, Canada
December 15-16, 2025

13th World Congress on Physical and Theoretical Chemistry

Amsterdam, Netherlands
February 09-10, 2026

9th World Congress On Cardiology and Heart Failure

London, UK
February 19-20, 2026

4th World Congress on Quantum Physics

Paris, France

Quantum Chromodynamics Conference Speakers

    Recommended Sessions

    Related Journals

    Are you interested in