# Toward a theory of the strong interactions

Originality
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Accuracy
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Score
2.09
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Referee this paper: [physRevD:17.2717] by Curtis G. Callan Jr, Roger Dashen, (show more)

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This 1978 paper by C.G. Callan, R. Dashen and D.J. Gross makes a systematic study of the relevant degrees of freedom and the dynamics of quantum chromodynamics (QCD). ''We find that the dynamical properties of QCD are, to a large extent, a consequence of the structure of the vacuum arising from the tunneling between degenerate, classically stable, vacuums, and that the relevant degrees of freedom can be taken to be the Euclidean path histories that can be used to calculate the tunneling in the semiclassical approximation. This nonperturbative vacuum structure appears well suited to the major features of QCD, i.e., the dimensional transmutation that determines the size of the hadrons and the strong-interaction coupling constant, the source of dynamical chiral symmetry breaking, and the mechanism responsible for quark confinement.''

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paper authored May 15, 1978 to hep-th
retagged Aug 27, 2014

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