Skewed Parton Distributions

Details Skewed Parton Distributions Skewed Parton Distributions

2000-11-29

arxiv.org/abs/hep-ph/0011383v1

Acta Phys.Polon. B30 (1999) 3647-3678

Physics

High Energy Physics

High Energy Physics - Phenomenology

Presented at XXXIX Cracow School on Theoretical Physics, Zakopane, Poland, May 29-June 8, 1999

Scientific paper

10.1016/S0375-9474(00)00031-2

Applications of perturbative QCD to deeply virtual Compton scattering and hard exclusive electroproduction processes require a generalization of usual parton distributions for the case when long-distance information is accumulated in nonforward matrix elements of quark and gluon light-cone operators. We describe two types of nonperturbative functions parametrizing such matrix elements: double distributions F(x,y;t) and skewed distribution functions F_\zeta(X;t), discuss their properties, and basic uses in the QCD description of hard exclusive processes.

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