Strange Particle Production by 4.65-BeV/cπ−Mesons

Abstract

Hydrogen bubble chamber photographs taken in an unseparated 4.65-BeV/c ${\pi }^{-}$ beam at the Brookhaven alternating gradient synchrotron give partial cross sections for many channels involving associated production of $Y+K$ and production of $K$ pairs. Associated production channels total 1.11 mb, $K$ pair 0.57 mb. Most channels involve one or more pions in the final state. Peripheral collisions appear important for such processes. The only resonance clearly observed is $K^{*}$ with the mass of 895 MeV.