Abstract
Abstract Charged pion photoproduction is investigated in the framework of Veneziano B 5 amplitudes using Sugawara's “spurion” technique in order to introduce fixed J -plane poles. The Regge exchanges are taken to be evasive. The agreement with experiment for the differential cross section, the π − π + ratio and the polarisation asymmetries for photon energies between 3.4 and 18 GeV is quite reasonable.
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