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Exclusive electroproduction and off-diagonal parton distributions

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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Submitted on : Friday, December 14, 2007 - 2:37:58 PM
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M. Diehl, T. Gousset, B. Pire. Exclusive electroproduction and off-diagonal parton distributions. 4th International Workshop on Quantum Chromodynamics and Hadronic Physics, Jun 1998, Paris, France. pp.289-295. ⟨in2p3-00197190⟩



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