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QCD

QCD

1 9.9
A physics theory that explains the force that holds protons and neutrons together
  • noun
  • /ˌkjuːsiːˈdiː/
  • Specialized
translation icon : cromodinámica cuántica
  • So the so-called QCD axion is my favorite dark matter candidate.
  • chromodynamics (QCD
  • QCD Lagrangian
  • quantum chromodynamics (QCD

I call, I say like I'd like to say that QCD is like QED on steroids.

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Examples

  • Doing calculations in the strong-coupling limit of QCD has long been a dream of theorists.

    Academic text (1998)

  • Cross sections for elementary processes in QCD fall rapidly with increasing momentum.

    Academic text (2003)

  • So color, the charge of QCD, plays a very important role here.

  • No, in QCD we apply this, but in QCD, G is not small.

  • We now understand enough about QCD at short distances to be very interested in g2.

    Academic text (1995)

  • Yet the Lagrangian of QCD is remarkably simple and elegant.

    Academic text (1995)

  • Confinement in QCD has taken longer to understand than asymptotic freedom.

    Academic text (2004)

  • The black curve and yellow swath show the QCD prediction and its uncertainty.

    Academic text (2004)

  • We're talking about quantum chromo dynamics, QCD, the theory of quarks and gluons.

  • QCD, or QCD, describes how quarks and gluons interact to form protons and neutrons.

Synonyms

quantum chromodynamics
vsQCD
  • Specialized
9.9

A physics theory explaining the strong force that holds quarks inside protons and neutrons

is the abbreviated form used for the same theory in writing and speech

Surface Forms

QCD singular
QCDs plural

Morphology

QCD = Q + C + D

QCD is an acronym; the individual letters are not productive English morphemes and the meaning cannot be derived from the letters themselves.

Etymology

QCD comes from the name quantum chromodynamics. Quantum means 'very small', chromo comes from a Greek word for 'colour' that scientists use to name a property of quarks, and dynamics means 'forces or motion', so QCD is the short name for the theory of the strong force between quarks.