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

2008/03/31 by K. Semenov-Tian-Shansky, Kirill M. Semenov-Tian-Shansky
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1140/epja/i2008-10591-8

published as Eur.Phys.J.A36:303-313,2008 · 12 pages, 5 figures (some misprints in the formulas for the integral transformation relating GPDs and the set of forward-like functions were corrected)

openalex publication_date 2008/06/01 · arxiv created 2008/11/18 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29

Abstract

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.

Citations