Modeling quark-hadron duality in polarization observables

Details Modeling quark-hadron duality in polarization observables Modeling quark-hadron duality in polarization observables

2005-01-20

arxiv.org/abs/hep-ph/0501194v1

Phys.Rev. D71 (2005) 054019

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.71.054019

We apply a model for the study of quark-hadron duality in inclusive electron scattering to the calculation of spin observables. The model is based on solving the Dirac equation numerically for a scalar confining linear potential and a vector color Coulomb potential. We qualitatively reproduce the features of quark-hadron duality for all potentials considered, and discuss the onset of scaling and duality for the responses, spin structure functions, and polarization asymmetries. Duality may be applied to gain access to kinematic regions which are hard to access in deep inelastic scattering, namely for $x_{Bj} \to 1$, and we discuss which observables are most suitable for this application of duality.

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