Topological charge correlators, spectral bounds, and contact terms

H. Thacker, S. J. Dong, T. Draper, I. Horváth, F. X. Lee, K. F. Liu, J. B. Zhang

Research output: Contribution to journalReview articlepeer-review

1 Scopus citations


The structure of topological charge fluctuations in the QCD vacuum is strongly restricted by the spectral negativity of the Euclidean correlator for x ≠ 0 and the presence of a positive contact term. Some examples are considered which illustrate the physical origin of these properties.

Original languageEnglish
Pages (from-to)685-687
Number of pages3
JournalNuclear Physics B - Proceedings Supplements
StatePublished - May 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics


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