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arXiv · hep-ph/0208258

Quark-hadron duality in electron-pion scattering

W. Melnitchouk
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Abstract

We explore the relationship between exclusive and inclusive electromagnetic scattering from the pion, focusing on the transition region at intermediate Q^2. Combining Drell-Yan data on the leading twist quark distribution in the pion with a model for the resonance region at large x, we calculate QCD moments of the pion structure function over a range of Q^2, and quantify the role of higher twist corrections. Using a parameterization of the pion elastic form factor and phenomenological models for the pi -> rho transition form factor, we further test the extent to which local duality may be valid for the pion.

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W. Melnitchouk. 2003-04-02. Quark-hadron duality in electron-pion scattering. https://doi.org/10.1140/epja%2Fi2003-10006-6

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