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Asymmetric Parton Distributions

Radyushkin, Anatoly V.

Abstract

Applications of perturbative QCD to hard exclusive electroproduction processes in the Bjorken limit at small invariant momentum transfer t bring in a new type of parton distributions which have hybrid properties, resembling both the parton distribution functions and the distribution amplitudes. Their t-dependence is analogous to that of hadronic form factors. We discuss general properties of these new parton distributions, their relation to usual parton densities and the evolution equations which they satisfy.

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Key concepts: Parton, Physics, Particle physics, Hadron, Distribution function, Quantum chromodynamics, Perturbative QCD, Momentum (technical analysis)