Proton-Proton Scattering at 1.48 BeV

A sample of 2657 proton-proton scattering events at 1.48 BeV has been analyzed. The elastic cross section is 19.86 mb, and the elastic scattering is consistent with a simple opaque-disk optical model with $R=0.91\mathrm{}$ F and $1-a=0.864\mathrm{}$. The dominant feature of the inelastic scattering is the production of the (3/2, 3/2) isobar. The reaction $p+p\to p+n+{\pi }^{+}$ is interpreted satisfactorily in terms of the one-pion-exchange model.