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Novel Aspects of Hard Diffraction in QCD

S. J. Brodsky
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Abstract

Initial- and final-state interactions from gluon-exchange, normally neglected in the parton model have a profound effect in QCD hard-scattering reactions, leading to leading-twist single-spin asymmetries, diffractive deep inelastic scattering, diffractive hard hadronic reactions, and nuclear shadowing and antishadowing--leading-twist physics not incorporated in the light-front wavefunctions of the target computed in isolation. I also discuss the use of diffraction to materialize the Fock states of a hadronic projectile and test QCD color transparency.

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S. J. Brodsky. 2005-09-21. Novel Aspects of Hard Diffraction in QCD. https://arxiv.org/abs/hep-ph/0509222

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