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arXiv · hep-ph/0501180

Quark-hadron duality and higher twist contributions in structure functions

A. Fantoni·N. Bianchi·S. Liuti
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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.

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A. Fantoni, N. Bianchi, S. Liuti. 2005-01-19. Quark-hadron duality and higher twist contributions in structure functions. https://doi.org/10.1063/1.1871651

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