Quark-Hadron Duality in Structure Functions
arXiv:hep-ph/0501126 · doi:10.1140/epjad/s2005-05-006-x
Abstract
Quark-hadron duality is studied in a systematic way for both the unpolarized and polarized structure functions, by taking into account all the available data in the resonance region.In both cases, a detailed perturbative QCD based analysis of the structure functions integrals in the resonance region is performed: non perturbative contributions are disentangled, and higher twist terms are evaluated. A different behavior between the unpolarized and polarized structure functions at low Q^2 is found.
5 pages, 4 figures