Quark-hadron duality in electron-pion scattering
High Energy Physics - Phenomenology
2014-11-17 v2 High Energy Physics - Experiment
Nuclear Experiment
Nuclear Theory
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.
Cite
@article{arxiv.hep-ph/0208258,
title = {Quark-hadron duality in electron-pion scattering},
author = {W. Melnitchouk},
journal= {arXiv preprint arXiv:hep-ph/0208258},
year = {2014}
}
Comments
23 pages, 7 figures, to appear in Eur. J. Phys. A