Abstract
We discuss the photon fragmentation region of inclusive pion photo- and electroproduction in terms of a helicity dependent Mueller-Regge model, in which cut contributions are taken into accout. It is shown that the inadequacies of a pure Regge pole expansion can be corrected if certain types of Regge cut contributions are included. The transition from electro-production to the photo-production limit is shown to be non-smooth in the case of charged pions and we point out that normal triple-Regge mechanisms are unlikely to be important in the deep inelastic region.
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