The angular correlation of the (${\pi }^{+}$,pp) and (${\pi }^{\mathrm{-}}$,pp) cross sections for ${}_{}{}^6{}_{}{}^{}\mathrm{Li}$, ${}_{}{}^7{}_{}{}^{}\mathrm{Li}$, and C was measured in a wide angular range. We analyzed the structure of the (${\pi }^{+}$,pp) angular correlation comparing cross sections between the two reactions. It was found that the broad component of the (${\pi }^{+}$,pp) angular correlation is mainly due to the two-step processes associated with the two-nucleon absorption.

• Received 3 March 1989

DOI:https://doi.org/10.1103/PhysRevC.40.1069