Generalized Parton Distributions

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Applications of perturbative QCD to deeply virtual Compton scattering and hard exclusive electroproduction processes require a generalization of the usual parton distributions for the case when long-distance information is accumulated in non-diagonal matrix elements of quark and gluon light-cone operators. I describe two types of nonperturbative functions parametrizing such matrix elements: double distributions and skewed parton distributions, discuss their general properties, relation to the usual parton densities and form factors, evolution equations for both types of generalized parton distributions (GPD), models for GPDs and their applications in virtual and real Compton scattering.

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651 Kilobytes pages

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Radyushkin, A. September 1, 2000.

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Description

Applications of perturbative QCD to deeply virtual Compton scattering and hard exclusive electroproduction processes require a generalization of the usual parton distributions for the case when long-distance information is accumulated in non-diagonal matrix elements of quark and gluon light-cone operators. I describe two types of nonperturbative functions parametrizing such matrix elements: double distributions and skewed parton distributions, discuss their general properties, relation to the usual parton densities and form factors, evolution equations for both types of generalized parton distributions (GPD), models for GPDs and their applications in virtual and real Compton scattering.

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651 Kilobytes pages

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  • Other Information: No journal information given for this preprint

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  • Report No.: JLAB-THY-00-33
  • Report No.: DOE/ER/40150-1762
  • Grant Number: AC05-84ER40150
  • Office of Scientific & Technical Information Report Number: 766462
  • Archival Resource Key: ark:/67531/metadc717710

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  • September 1, 2000

Added to The UNT Digital Library

  • Sept. 29, 2015, 5:31 a.m.

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  • Feb. 5, 2016, 8:09 p.m.

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Radyushkin, A. Generalized Parton Distributions, article, September 1, 2000; Newport News, Virginia. (digital.library.unt.edu/ark:/67531/metadc717710/: accessed September 24, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.