Analysis of some multiparticle final states produced in K --proton interactions at 6 GeV/ c

The reactions K^-p→ poverlineK^oπ ⁺π ^-π ^-, poverlineK^oπ ⁺π ^-π ^- π ^oandnoverlineK^oπ ⁺π ⁺π ^-π ^- have been studied at 6 GeV/ c incident momentum. Cross sections are given for the various resonances produced in each channel. In the first two channels, resonance production dominates. A detailed analysis has been performed on the simultaneous resonance production K^-p→ Δ ⁺⁺K^∗-π ^-, and evidence is given for a vector-ex-change mechanism. A Veneziano-model calculation has been attempted for this quasi three-body final state, and the predictions are found to be in good agreement with the experimental results.