Generalized parton distributions
By M. Diehl. 2002
888 citations recorded by the source corpus.
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.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/759b0ca62b897f21fc35d30caa964ccacfd0e2a6
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In Nuclear and High Energy Physics
- Atlas Collaboration
- Juan Rojo
- Cms Collaboration
- S. Forte
- M. Constantinou
- Graeme Watt
- C. Salgado
- Jun Gao
Citations in the corpus
- Parton distributions and lattice-QCD calculations: Toward 3D structure (2020, methodology): “For example, the deeply virtual Compton scattering (DVCS) cross section can be expressed in terms of Compton form factors (CFFs) which are factorized into GPDs convoluted over the variable x with perturbatively calculated short-distance coefficient functions (Belitsky and Radyushkin, 2005; Diehl, 20”
- Elements of a theory for multiparton interactions in QCD (2011, background): “47) where M is the proton mass and Hq(x, ξ, t), Eq(x, ξ, t) and H̃q(x, ξ, t) are the usual GPDs defined in [131].”
- A Large Hadron Electron Collider at CERN: Report on the Physics and Design Concepts for Machine and Detector (2012, background): “For properties of all these distributions, see the reviews [55,359,360].”
- Generalized parton correlation functions for a spin-0 hadron (2008, background): “ibutions (GPDs) [1] constitute one such type. They can be measured in hard exclusive reactions such as deep virtual Compton scattering or hard exclusive meson production (for reviews see, e.g., refs. [2, 3, 4, 5]). In particular, when being transformed to the impact parameter space, GPDs contain inf”