On "dual" parametrizations of generalized parton distributions

Abstract

We propose a parametrization for the generalized parton distributions (GPDs) which is based on representation of parton distributions as an infinite series of t-channel exchanges. The entire generalized parton distribution is given as an infinite sum over contributions of generalized light-cone distribution amplitudes in the t-channel. We also discuss the relations of the lowest Mellin moments of GPDs to basic mechanical characteristics of the nucleon as a compound system.

19 pages

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• Spatial distribution of angular momentum inside the nucleon
• Complex conformal spin partial wave expansion of generalized parton distributions and distribution amplitudes
• Measurement of Azimuthal Asymmetries With Respect To Both Beam Charge and Transverse Target Polarization in Exclusive Electroproduction of Real Photons
• Unbiased determination of DVCS Compton Form Factors
• Implication of the overlap representation for modelling generalized parton distributions
• Sum rules and dualities for generalized parton distributions: is there a holographic principle?
• Tomography for amplitudes of hard exclusive processes
• Towards a fitting procedure to deeply virtual meson production -- the next-to-leading order case --
• Extraction of the Compton Form Factor H from DVCS measurements at Jefferson Lab
• HERMES impact for the access of Compton form factors
• $J=0$ fixed pole and $D$-term form factor in deeply virtual Compton scattering
• Forward-like functions for dual parametrization of GPDs from nonlocal chiral quark model
• Dual parameterization and Abel transform tomography for twist-3 DVCS
• Artificial neural network modelling of generalised parton distributions
• High--Energy Photon--Hadron Scattering in Holographic QCD
• Exclusive electroproduction and the quark structure of the nucleon
• The concept of phenomenological light-front wave functions -- Regge improved diquark model predictions
• Accessing GPDs from experiment --- potential of a high-luminosity EIC ---
• Large-N Summation of Chiral Logs for Generalized Parton Distributions
• Crossed channel analysis of quark and gluon generalized parton distributions with helicity flip
• Educing GPDs from amplitudes of hard exclusive processes
• Mapping Parton Distributions of Hadrons with Lattice QCD
• Double distributions and generalized parton distributions from the parton number conserved light front wave function overlap representation
• DVCS and the skewness effect at small x
• Generalized Parton Distributions of Pions. Spin Structure of Hadrons
• Toward modelization of quark and gluon transversity generalized parton distributions
• Study of Generalized Parton Distributions with CLAS