Resonances and higher twist in polarized lepton-nucleon scattering

Authors
Edelmann, J Piller, G Kaiser, N Weise, W
Citation
J. Edelmann et al., Resonances and higher twist in polarized lepton-nucleon scattering, NUCL PHYS A, 665(1-2), 2000, pp. 125-136
Citations number
42
Categorie Soggetti
Physics
Journal title
NUCLEAR PHYSICS A
ISSN journal
03759474 → ACNP
Volume
665
Issue
1-2
Year of publication
2000
Pages
125 - 136
Database
ISI
SICI code
0375-9474(20000214)665:1-2<125:RAHTIP>2.0.ZU;2-L
Abstract
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 characteri stic Q(2) region in which (perturbative) higher twist corrections coexist w ith (non-perturbative) resonance contribution of comparable magnitude. (C) 2000 Elsevier Science B.V. All rights reserved.