Topological Charge Correlators, Spectral Bounds, and Contact Terms

Details Topological Charge Correlators, Spectral Bounds, and Contact Terms Topological Charge Correlators, Spectral Bounds, and Contact Terms

2002-09-06

arxiv.org/abs/hep-lat/0209089v1

Nucl.Phys.Proc.Suppl.119:685-687,2003

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice 2002 Conference Proceedings

Scientific paper

10.1016/S0920-5632(03)01665-7

The structure of topological charge fluctuations in the QCD vacuum is
strongly restricted by the spectral negativity of the Euclidean 2-point
correlator for $x\neq 0$ and the presence of a positive contact term. Some
examples are considered which illustrate the physical origin of these
properties.

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