quantum chromodynamics

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quantum chromodynamics

n. (used with a sing. verb)

quantum chromodynamics

n (functioning as singular)
(Atomic Physics) physics a theory describing the strong interaction in terms of quarks and gluons, with the colour of quarks used as an analogue of charge and the gluon as an analogue of the photon. Abbreviation: QCD
[C20: chromodynamics from chromo- (referring to quark colour) + dynamics, modelled on quantum electrodynamics]

quan′tum chro•mo•dy•nam′ics

(ˌkroʊ moʊ daɪˈnæm ɪks)
n.
(used with a sing. v.) a quantum theory of the interactions of quarks and gluons in which the color of quarks is analogous to electric charge. Abbr.: QCD
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.quantum chromodynamics - 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
quantum field theory - the branch of quantum physics that is concerned with the theory of fields; it was motivated by the question of how an atom radiates light as its electrons jump from excited states
References in periodicals archive ?
Among their topics are a schematic model of baryons and mesons, on the way from sakatons to quarks, from symmetries to quarks and beyond, insights and puzzles in particle physics, the analytical determination of the quantum chromodynamic quark masses, quark mass hierarchy and flavor mixing puzzles, quark elastic scattering as a source of high transverse momentum mesons, exclusive processes and the fundamental structure of hadrons, lessons from supersymmetry: "instead-of-confinement" mechanisms, and quarks and a unified field theory of nature's fundamental forces.
This will then be fully capable of producing the true universal equation of motion of the unified fields as a whole in a single package (including the electromagnetic Lorentz equation of motion and the chromodynamic Yang-Mills equation of motion) and the nature of pure geometric motion--kinemetricity--of the cosmos will be revealed.
The final set of papers deals with astrophysics and includes discussions of quantum gravity, micro-structure of spacetime, and the origin of the universe; two strong radio bursts at high and medium galactic latitude, and effects of quantum chromodynamic phase transition on the ejected elements from the envelopes of compact stars.