Low-Energy Interactions ofK−Mesons in Hydrogen

Abstract

A study has been made of the $K-p$ interactions in a hydrogen bubble chamber. Cross sections have been determined at 25-MeV/c intervals in the range 75 to 275 MeV/c $K^{-}$ lab momentum. About 90% of the hyperons were produced by $K^{-}-p$ interactions at rest, and these events were used to calculate at-rest production ratios and hyperon lifetimes.