Forward-like functions for dual parametrization of GPDs from nonlocal chiral quark model

Details Forward-like functions for dual parametrization of GPDs from nonlocal chiral quark model Forward-like functions for dual parametrization of GPDs from nonlocal chiral quark model

2008-03-14

arxiv.org/abs/0803.2218v3

Eur.Phys.J.A36:303-313,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 5 figures (some misprints in the formulas for the integral transformation relating GPDs and the set of forward-like

Scientific paper

10.1140/epja/i2008-10591-8

We derive the set of inversion relations allowing to establish the link between the dual parametrization of GPDs and a broad class of phenomenological models for GPDs. As an example we consider the results of the calculation of the pion GPD in the framework of nonlocal chiral quark model (NlCQM) to recover the set of forward-like functions representing this GPD in the framework of dual parametrization. We also argue that Abel tomography method overlooks possible delta function like contributions to GPD quintessence function making explicit contribution to the D from factor.

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