Quark-Hadron Duality and Effective Continuum Thresholds in Dispersive Sum Rules
classification
✦ hep-ph
hep-thnucl-th
keywords
dualityquark-hadroncontinuumeffectiverulesthresholdsaccuracyachieve
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A novel procedure for extracting hadron characteristics from QCD sum rules, based on effective continuum thresholds (necessary for the implementation of quark-hadron duality) which may depend on the involved momenta and on the Borel parameter(s), enables us to quantify the uncertainties induced by the quark-hadron duality approximation and to achieve a significantly higher accuracy of our predictions for the properties of hadronic bound states.
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