Extension of the isobar model for intranuclear cascades to 1 GeV

An intranuclear cascade model is proposed for studying pion and nucleon induced reactions in the region of single pion production. The model explicitly considers the production and subsequent interactions of (3,3) isobars. The predictions of the model are compared with experimental data from proton induced reactions such as pion production yields, pion and proton energy and angular distributions, and spallation yields. The model gives a fair to excellent representation of all these data.