Nonforward parton distributions

Journal Article · Sat Nov 01 00:00:00 EST 1997 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.56.5524· OSTI ID:543888

Radyushkin, A V ^[1]

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1. Physics Department, Old Dominion University, Norfolk, Virginia 23529 (United States)

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 {l_angle}p{sup {prime}}{vert_bar}O(0,z){vert_bar}p{r_angle} 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 nonforward distribution functions F{sub {zeta}}(X;t), discuss their spectral properties, evolution equations which they satisfy, basic uses and general aspects of factorization for hard exclusive processes. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 543888
• Journal Information: Physical Review, D, Vol. 56, Issue 9; Other Information: PBD: Nov 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
PARTONS
DISTRIBUTION FUNCTIONS
QUANTUM CHROMODYNAMICS
PERTURBATION THEORY
ELECTRON-PROTON INTERACTIONS
ELECTROPRODUCTION
PARTON MODEL
COMPTON EFFECT
SCATTERING
MATRIX ELEMENTS
FACTORIZATION
EXCLUSIVE INTERACTIONS
QUARKS
GLUONS
LIGHT CONE