Abstract
The results of a wire chamber spectrometer experiment studying K∗ (890) production in the reaction K−p→ K−π+n at 13 GeV are presented. Strong forward structure is observed for |t|< m2π in the s-channel density matrix elements and differential cross section. These features are similar to those observed in π−p→ϱ0n data and are characteristics of π exchange. In contrast in the intermediate, |t| ∼ 0.2 GeV2, and large momentum transfer regions K∗ (890) production is demonstrated by the natural parity ϱ−A2 exchange contribution.
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