Quantum Chromodynamics (QCD)

Quantum Chromodynamics (QCD) is the fundamental theory describing the strong force, one of the four basic forces of nature. It explains how tiny particles called quarks, which make up protons and neutrons, are held together by even tinier particles called gluons. QCD is a crucial part of the <a href="/article/standard-model">Standard Model</a> of particle physics, helping us understand the building blocks of matter.