Diquark model predictions for photon induced exclusive reactions
P. Kroll
Abstract
The present status of the diquark model for exclusive reactions at moderately large momentum transfer is reviewed. That model is a variant of the Brodsky-Lepage approach in which diquarks are considered as quasi-elementary constituents of baryons. Recent applications of the diquark model, relevant to high energy physics with electromagnetic probes, are discussed: electromagnetic form factors of baryons in both the space-like and the time-like region, photoproduction of mesons, two-photon annihilations into proton-antiproton pairs as well as real and virtual Compton scattering on which the main emphasis is laid.
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