Observation of double φ-meson production in the central region for the reactions π +p → π +(K +K +K −K −)p andpp → p(K +K +K −K −)p at 85 GeV/ c

Abstract

The reactions π + p → π +( K + K + K − K −) p and pp → p( K + K + K − K −) p in which the K + K + K − K − system is centrally produced have been studied at 85 GeV c . Evidence is found for φφ production. The relative rates for production of φφ, φK + K − and K + K + K − K − have been determined.