Quark-hadron duality and higher twist contributions in structure functions
High Energy Physics - Phenomenology
2009-11-11 v1
Abstract
Quark-hadron duality is studied in a systematic way for polarized and unpolarized structure functions, by taking into account all the available data in the resonance region. In both cases, a precise perturbative QCD based analysis of the integrals of the structure functions in the resonance region has been performed: non perturbative contributions have been disentangled, higher twist contributions have been evaluated and compared with the ones extracted in the deep inelastic scattering region. A different behavior for the unpolarized and polarized structure functions at low Q^2 is found.
Cite
@article{arxiv.hep-ph/0501180,
title = {Quark-hadron duality and higher twist contributions in structure functions},
author = {A. Fantoni and N. Bianchi and S. Liuti},
journal= {arXiv preprint arXiv:hep-ph/0501180},
year = {2009}
}
Comments
4 pages, 3 figures