Antiproton-proton elastic cross sections in the momentum range between 180 and 600 MeV/c

Abstract Differential cross sections for pp elastic scattering have been measured in the full angular range for the p momenta between 180 and 600 MeV/ c . It is found that s- and p-wave scattering is dominant below 300 MeV/ c . The s-wave component in the total cross section is 40–60% below 300 MeV/ c , in contrast to the NN scattering where it is about 90%. The s-, p- and d-wave scattering amplitudes are derived.