quantum chromodynamics

Noun

Meaning

a theory of strong interactions between elementary particles (including the interaction that binds protons and neutrons in the nucleus); it assumes that strongly interacting particles (hadrons) are made of quarks and that gluons bind the quarks together

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Hypernyms

Examples

Definition Quantum electrodynamics (QED) has one electron field and one photon field; quantum chromodynamics (QCD) has one field for each type of quark ; and, in condensed matter, there is an atomic displacement field that gives rise to phonon particles. Source: Internet

Color SU(3) (commonly abbreviated to SU(3) c ) is the gauge symmetry that relates the color charge in quarks and is the defining symmetry for quantum chromodynamics. Source: Internet

Behaviour of the strong force The strong force is described by quantum chromodynamics (QCD), a part of the standard model of particle physics. Source: Internet

For quantum chromodynamics, the Shifman Vainshtein Zakharov sum rules describe non-perturbatively excited long-wavelength field modes in particle language, but only in a phenomenological way. Source: Internet

In Skyrme's model, reproduced in the large N or string approximation to quantum chromodynamics (QCD), the proton and neutron are fermionic topological solitons of the pion field. Source: Internet

Lagrangian The dynamics of the quarks and gluons are controlled by the quantum chromodynamics Lagrangian. Source: Internet

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