Generalized Parton Distributions

Journal Article · Fri Sep 01 04:00:00 EDT 2000

DOI:https://doi.org/10.1016/S0920-5632(00)00882-3· OSTI ID:766462

Radyushkin, A

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.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
• Sponsoring Organization: USDOE Office of Energy Research (ER) (US)
• DOE Contract Number: AC05-84ER40150
• OSTI ID: 766462
• Report Number(s): JLAB-THY-00-33; DOE/ER/40150-1762
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COMPTON EFFECT
ELECTROPRODUCTION
FORM FACTORS
GLUONS
LIGHT CONE
MATRIX ELEMENTS
PARTONS
QUANTUM CHROMODYNAMICS
QUARKS