Helicity-Flip Off-Foward Parton Distributions of the Nucleon

Abstract

We identify quark and gluon helicity-flip distributions defined between nucleon states of unequal momenta. The evolution of these distributions with change of renormalization scale is calculated in the leading-logarithmic approximation. The helicity-flip gluon distributions do not mix with any quark distribution and are thus a unique signature of gluons in the nucleon. Their contribution to the generalized virtual Compton process is obtained both in the form of a factorization theorem and an operator product expansion. In deeply virtual Compton scattering, they can be probed through distinct angular dependence of the cross section.

a few corrections made, references changed

References in corpus (9)

• Wave Functions, Evolution Equations and Evolution Kernels from Light-Ray Operators of QCD
• Nonforward Parton Distributions
• Off-forward quark distributions of the nucleon in the large N_c limit
• A Study of Off-Forward Parton Distributions
• Testing the handbag contribution to exclusive virtual Compton scattering
• Predictions from conformal algebra for the deeply virtual Compton scattering
• Nondiagonal Parton Distributions in the Leading Logarithmic Approximation
• On the Evolution Kernels of Twist 2 Light-Ray Operators for Unpolarized and Polarized Deep Inelastic Scattering
• Light-Ray Evolution Equations and Leading-Twist Parton Helicity-Dependent Nonforward Distributions

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