Gaussian Sum-Rules, Scalar Gluonium, and Instantons

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dc.creatorSteele, T. G.
dc.creatorHarnett, D.
dc.creatorOrlandini, G.
dc.date2002-10-01
dc.date.accessioned2026-07-07T03:48:07Z
dc.date.available2026-07-07T03:48:07Z
dc.descriptionGaussian sum-rules relate a QCD prediction to a two-parameter Gaussian-weighted integral of a hadronic spectral function, providing a clear conceptual connection to quark-hadron duality. In contrast to Laplace sum-rules, the Gaussian sum-rules exhibit enhanced sensitivity to excited states of the hadronic spectral function. The formulation of Gaussian sum-rules and associated analysis techniques for extracting hadronic properties from the sum-rules are reviewed and applied to scalar gluonium. With the inclusion of instanton effects, the Gaussian sum-rule analysis results in a consistent scenario where the gluonic resonance strength is spread over a broad energy range below 1.6 GeV, and indicates the presence of gluonium content in more than one hadronic state.
dc.description19 pages, 5 eps figures embedded in manuscript. Write-up of presentation given at SUNY IT Conference on Theoretical High-Energy Physics, 2002
dc.identifierhttps://arxiv.org/abs/hep-ph/0210013
dc.identifierhttp://arxiv.org/abs/hep-ph/0210013
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/41883
dc.subjectHigh Energy Physics - Phenomenology
dc.titleGaussian Sum-Rules, Scalar Gluonium, and Instantons
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