Resonances and higher twist in polarized lepton-nucleon scattering

Details Resonances and higher twist in polarized lepton-nucleon scattering Resonances and higher twist in polarized lepton-nucleon scattering

1999-09-28

arxiv.org/abs/hep-ph/9909524v1

Nucl.Phys. A665 (2000) 125-136

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages LaTeX

Scientific paper

10.1016/S0375-9474(99)00685-5

We present a detailed analysis of resonance contributions in the context of
higher twist effects in the moments of the proton spin structure function g_1.
For each of these moments, it is found that there exists a characteristic Q^2
region in which (perturbative) higher twist corrections coexist with
(non-perturbative) resonance contribution of comparable magnitude.

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