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QCD glueball sum rules and vacuum topology

Hilmar Forkel
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Abstract

Several key problems of QCD sum rules in the spin-0 glueball channels are resolved by implementing nonperturbative short-distance physics from direct instantons and topological charge screening. A lattice-based instanton size distribution and the IR renormalization of the nonperturbative Wilson coefficients are also introduced. Results of a comprehensive quantitative sum rule analysis are reviewed and their implications discussed.

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Hilmar Forkel. 2006-08-23. QCD glueball sum rules and vacuum topology. https://doi.org/10.1142/9789812708267_0047

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