Generalized parton distributions

2003/07/31 by M. Diehl · 14 citations
Physics and Astronomy · #Connection (principal bundle) #Distribution (mathematics) #Distribution function #Hadron #High-Energy Particle Collisions Research #Momentum (technical analysis) #Particle physics theoretical and experimental studies #Parton #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physrep.2003.08.002

published as Phys.Rept.388:41-277,2003 · 226 pages, 47 figures. v2: Small corrections and a note added

arxiv created 2003/10/17 · openalex publication_date 2003/10/25 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We give an overview of the theory for generalized parton distributions. Topics covered are their general properties and physical interpretation, the possibility to explore the three-dimensional structure of hadrons at parton level, their potential to unravel the spin structure of the nucleon, their role in small-x physics, and efforts to model their dynamics. We review our understanding of the reactions where generalized parton distributions occur, to leading power accuracy and beyond, and present strategies for phenomenological analysis. We emphasize the close connection between generalized parton distributions and generalized distribution amplitudes, whose properties and physics we also present. We finally discuss the use of these quantities for describing soft contributions to exclusive processes at large energy and momentum transfer.

Citations

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Cited by

• Perturbative renormalisation of the second moment of generalised parton distributions
• One-loop renormalisation for the second moment of GPDs with Wilson fermions
• The photon PDF in events with rapidity gaps
• Virtual meson cloud of the nucleon and generalized parton distributions
• Constraints on the H˜ generalized parton distribution from deep virtual Compton scattering measured at HERMES
• Tensor-polarized quark and antiquark distribution functions in a spin-one hadron
• Chiral dynamics and S-wave contributions in semileptonicDs/Bsdecays intoπ+π−
• Deep inelastic pion electroproduction at threshold
• Global analyses of generalized parton distributions with diverse PDF inputs
• QCD analysis of p¯N→γ∗π in the scaling limit
• Discussion on the recent proton-DVCS results of Jefferson Lab
• Lepton mass effects in the Bethe–Heitler process
• Handling the handbag diagram in Compton scattering on the proton
• Regge behavior of DIS structure functions in scalar theories