Measurement of wide-angle elastic scattering of pions and protons off protons

Abstract

A comprehensive measurement of the differential cross section for ${\pi }^{\pm }p$ and $\mathrm{pp}$ elastic scattering has been made at large center-of-mass angles. ${\pi }^{-}p$ and $\mathrm{pp}$ scattering were measured with incident laboratory momenta ranging from 2 to 9.5 GeV/c. ${\pi }^{+}p$ scattering was measured with momenta from 2 to 6.3 GeV/c. Scattering angles were in the range $-0.3\mathrm{}\lesssim {cos\theta }_{\mathrm{c}.\mathrm{m}.\mathrm{}}\lesssim 0.4$. The results of the experiment are compared to constituent models and statistical models.