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arXiv · hep-ph/9811220

Exclusive electroproduction and off-diagonal parton distributions

M. Diehl·T. Gousset·B. Pire
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Abstract

Off-diagonal parton distributions occur in several hard exclusive reactions. They extend the study of hadron structure beyond what can be learned from ordinary distributions and have a particularly rich spin structure. The hard scattering subprocesses in electroproduction of mesons and of real photons satisfy helicity selection rules, which provide powerful tools to test leading-twist dominance at a given value of the hard scale.

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M. Diehl, T. Gousset, B. Pire. 1998-11-02. Exclusive electroproduction and off-diagonal parton distributions. https://arxiv.org/abs/hep-ph/9811220

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