What is Quantum chromodynamics?
[[File:Standard Model of Elementary Particles.svg|thumb|250px|Standard model of particle physics]] '''Quantum chromodynamics''' ('''QCD''') is the theory of the [[strong interaction]] between [[quark]]s and [[gluon]]s. These are the fundamental particles that make up [[hadron]]s such as the [[proton]], [[neutron]] and [[pion]]. It shows the interactions inside subatomic particles such as neutrons and protons. {{-}} {{sci-stub}} {{DEFAULTSORT:Quantum Chromodynamics}} [[Category:Subfields of physics]]