Differential cross sections forK−pelastic scattering from 1.4 to 1.9 GeV/c

Abstract

We report here the results from an experiment to obtain differential cross sections for ${K}^{\ensuremath{-}}p$ elastic scattering in the laboratory momentum region from 1.4 to 1.9 GeV/c. These data span the region of a bump in the ${K}^{\ensuremath{-}}p$ total cross section at an energy of 2.05 GeV. Approximately 20000 elastic events were obtained at each of four momenta with an angular coverage of $0.9\ensuremath{\ge}{cos\ensuremath{\theta}}_{\mathrm{c}.\mathrm{m}.}\ensuremath{\ge}\ensuremath{-}0.9$. The data are intended to aid in phase-shift analyses of the resonances causing the bump in the total cross section and to study dip structures at constant values of the Mandelstam variables $t$ and $u$.