Hard exclusive reactions and the structure of hadrons
Abstract
We outline in detail the properties of generalized parton distributions (GPDs), which contain new information on the structure of hadrons and which enter the description of hard exclusive reactions. We highlight the physics content of the GPDs and discuss the quark GPDs in the large N c limit and within the context of the chiral quark-soliton model. Guided by this physics, we then present a general parametrization for these GPDs. Subsequently we discuss how these GPDs enter in a wide variety of hard electroproduction processes and how they can be accessed from them. We consider in detail deeply virtual Compton scattering and the hard electroproduction of mesons. We identify a list of key observables which are sensitive to the various hadron structure aspects contained in the GPDs and which can be addressed by present and future experiments.
- Publication:
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Progress in Particle and Nuclear Physics
- Pub Date:
- 2001
- DOI:
- 10.1016/S0146-6410(01)00158-2
- arXiv:
- arXiv:hep-ph/0106012
- Bibcode:
- 2001PrPNP..47..401G
- Keywords:
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- High Energy Physics - Phenomenology
- E-Print:
- 115 pages, 42 figures, typos corrected and minor changes