K−-Meson Scattering in Nuclear Emulsion

Elastic single scatterings of $K^{-}$ mesons by nuclei of a dilute $G5\mathrm{}$ photographic emulsion have been experimentally measured for energies between 30 and 80 Mev. Accurate numerical calculations of the differential scattering cross sections have been carried out by solving a Klein-Gordon wave equation for an optical-model potential of the Woods-Saxon form. Experimental and theoretical results are in good agreement both on an absolute and on a relative-variation basis if the real part of the $K^{-}$-nuclear potential is attractive. The connection with low-energy $K^{-}$-nucleon scattering is discussed.