Inclusive (${\pi }^{+}$,p) and (${\pi }^{+}$,pp) cross sections for light nuclei in the resonance energy region

The angular distributions of the inclusive (${\pi }^{+}$,p) and (${\pi }^{+}$,pp) cross sections have been measured for ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^7{}_{}{}^{}\mathrm{Li}$, and C at $T_{\pi }$=70, 130, and 165 MeV. The results are compared with the predictions of the intranuclear cascade model in which pion absorption is involved only through the ΔN-NN dynamics. Discrepancy between the intranuclear cascade and experimental results for the (${\pi }^{+}$,pp) reaction is larger than that for the (${\pi }^{+}$,p) reaction. Effective numbers of quasideuteron are deduced from both single-arm and coincidence data, and compared with results of the two-nucleon photoabsorption reaction.