Topological charge correlators, spectral
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H. Thacker; S.J. Dong; T. Draper; I. HorvaΒ΄th; F.X. Lee; K.F. Liu; J.B. Zhang
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Article
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2003
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Elsevier Science
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English
β 289 KB
The structure of topological charge fluctuations in the QCD vacuum is strongly restricted by the spectral negativity of the Euclidean correlator for 2 # 0 and the presence of a positive contact term. Some examples are considered which illustrate the physical origin of these properties.