K+pElastic Scattering Between 432 and 939 MeV/c

Abstract

We present data from a spark-chamber study of ${K}^{+}p$ elastic scattering between 432 and 939 MeV/c, over the range $\ensuremath{-}0.6lcos{\ensuremath{\theta}}_{\mathrm{c}.\mathrm{m}.}l+0.7$. With measurements at 13 momenta, and between 2000 events at the lowest momentum and 5000 events at the highest momentum, there is a major improvement over previous data. The elastic cross sections deduced from the differential cross sections are almost independent of momentum through the range covered. The data are inconsistent with counter measurements of the total cross section which suggest a sharp shoulder in the cross section at about 700 MeV/c.