QCD Sum Rules and Models for Generalized Parton Distributions

Details QCD Sum Rules and Models for Generalized Parton Distributions QCD Sum Rules and Models for Generalized Parton Distributions

2004-10-11

arxiv.org/abs/hep-ph/0410153v1

Annalen Phys.13:718-730,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contribution to the Festschrift on the occasion of Klaus Goeke's 60th birthday, to appear in Annalen der Physik

Scientific paper

10.1002/andp.200410114

I use QCD sum rule ideas to construct models for generalized parton distributions. To this end, the perturbative parts of QCD sum rules for the pion and nucleon electromagnetic form factors are interpreted in terms of GPDs and two models are discussed. One of them takes the double Borel transform at adjusted value of the Borel parameter as a model for nonforward parton densities, and another is based on the local duality relation. Possible ways of improving these Ans{\"a}tze are briefly discussed.

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