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 ?
If one assumes the electroweak theory is correct, a study of the weak nucleon-nucleon (NN) interaction has the potential to improve our understanding of the strongly interacting limit of quantum chromodynamics (QCD), which is clearly a problem of fundamental importance.
The Quantum Quark is a close look at quantum chromodynamics that does not require an extensive mathematics or physics background of the reader.
Quantum chromodynamics is the study of how quarks interact though the exchange of particles called gluons.
Johnson orders his story around the progression of theories and discoveries in quantum thinking, providing an extraordinary wealth of detail on such recondite topics as particle parity, mathematical renormalization, isospin, and quantum chromodynamics.
In this way, Gell-Mann founded the study of quantum chromodynamics, on the model of quantum electrodynamics, which had proved to work so well (see 1948).
Although scientists believe dark matter is made of either axions - a class of extremely light particles whose existence is predicted by an extension of quantum chromodynamics - or Weakly Interacting Massive Particles, which are heavy particles that interact with normal matter only through gravity and the weak nuclear force, no such particles have yet been detected.
The researchers investigate strong interactions at high energies, diffraction and shadowing phenomena, gravitation and cosmology, standard model physics, quantum chromodynamics, and quantum field theory.
Students will be trained in mathematical and computational concepts underpinning current and future numerical simulations in turbulent flows, computational biology and lattice quantum chromodynamics.
Meanwhile the proton is described by Quantum Chromodynamics (QCD) [9], a non-abelian field theory, and we propose that this feature introduces a curvature in space-time modifying the size of the cell of the momentum space.
While strong supporting evidence for the particle physics theory of Quantum Chromodynamics (QCD) has been found in high energy collisions in experimental tests using perturbativetreatments because of its asymptotic freedom behavior, the perturbative procedures have proven problematic for low-energy QCD, since the running coupling constant goes beyond 1.
of Manchester, Britain) have expanded the 1984 first edition in order to treat quantum chromodynamics as well as quantum electrodynamics in their short introduction to quantum field theory for beginning research students in theoretical and experimental physics.
He shared the 2004 Nobel Prize in Physics for a 1970s advance that used modified Feynman diagrams to solve problems in quark theory, or quantum chromodynamics.

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