The inclusive reactions ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$(${\pi }^{\pm }$,${\pi }^{\pm }p$) were studied at 245 MeV over a broad kinematic range by coincidence measurement of the outgoing particles. The ${\pi }^{\pm }-p$ angular correlations, proton energy spectra, and the ratio of positive- to negative-pion cross sections are all consistent with those expected from quasifree scattering. For positive pions, quasifree scattering accounts for (30 ± 3)% of the inclusive pion inelastic scattering to backward angles. The rest is attributed to the (${\pi }^{+}$,${\pi }^{+}n$) reaction and to multistep processes.

• Received 16 January 1981

DOI:https://doi.org/10.1103/PhysRevLett.46.1271