Abstract
A variation of the model proposed by Plahte and Roberts is used to fit data from the reaction K − p → K 0π − p at 8.25 GeV/ c. The channel K − p → K ∗− p is also studied in some detail and the energy dependence of the cross section is discussed. The behaviour of the differential cross sections and of the density matrix elements of K ∗ in the G-J frame as function of t' suggests dominance of vector exchange with a small π-exchange contribution. The density matrix elements are also given in the helicity fram and a fit to the Harari model supports the dominance of natural-parity exchange and of the helicity non-flip amplitude at the nucleon vertex.
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