Production of the [formula omitted] final state in K −d interactions at 5.5 GeV/ c

Abstract

A cross section of 286 ± 45 μb was measured for the reaction K − n → → K ̄ ∗ O (890)Δ −(1236) at a beam momentum of 5.5 GeV/ c. The data show a forward diffraction peak with a slope of 5.7 ± 0.7 (GeV/ c) −2 and the decay correlations indicate that although pion exchange contributes to the production mechanism, it is apparently less dominant than in the related reaction K + p → K ∗ O (890)Δ ++(1236) . Significant differences are observed between these two reactions in both the cross section and the decay correlations. These differences cannot be explained in terms of a one-pion exchange model with absorption.