Generalized parton distributions

Diehl, Markus

Habil / Postdoctoral Thesis (Non-german Habil)/Internal Report

PUBDB-2016-02043

Generalized parton distributions

Diehl, M. (Corresponding author)

2003

226 pp. (2003) [10.3204/DESY-THESIS-2003-018] = DESY, Habil., 2003

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Please use a persistent id in citations: doi:10.3204/DESY-THESIS-2003-018

Report No.: DESY-THESIS-2003-018; hep-ph/0307382

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.

Keyword(s): thesis ; electron p: deep inelastic scattering ; electron nucleus: deep inelastic scattering ; Compton scattering: off-shell ; generalized parton distribution ; hadron: structure function ; momentum spectrum: parton ; angular momentum: parton ; nucleon: spin ; tensor: energy-momentum ; helicity ; wave function: light cone ; effect: higher-twist ; hadronization ; factorization ; photon photon: interaction ; meson: electroproduction ; meson: photoproduction ; charmonium ; impact parameter ; small-x ; diffraction ; cross section ; bibliography