Polynomiality of off-forward distribution functions in the chiral quark soliton model

Abstract

Mellin moments of off-forward distribution functions are, at t = 0, even polynomials of the skewedness parameter xi. It is proven that the unpolarized off-forward distribution functions in the chiral quark soliton model satisfy this so called polynomiality property. The proof is an important contribution to the demonstration that the description of off-forward distribution functions in the model is consistent.

4 pages, latex, no figures. Presented at the European Workshop on the QCD Structure of the Nucleon (QCD-N'02), Ferrara, Italy, 3-6 April 2002. To appear in Nucl. Phys. A

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• Deeply virtual Compton scattering off nuclei
• Integral representations for nonperturbative GPDs in terms of perturbative diagrams
• Helicity-dependent Twist-two and Twist-three Generalized Parton Distributions in Light-front QCD
• Virtual Compton scattering in the generalized Bjorken region and positivity bounds on generalized parton distributions
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• Helicity-dependent generalized parton distributions in constituent quark models
• Polynomiality of helicity off-forward distribution functions in the chiral quark-soliton model
• Generalized Parton Distributions from Lattice QCD with Asymmetric Momentum Transfer: Unpolarized Quarks at Nonzero Skewness
• Quarks and Antiquarks in Nuclei