The results of total cross section measurements are presented for ${\pi }^{\pm }$ on targets of natural Li, C, Al, Fe, Sn, and Pb in the region of 65-320 MeV laboratory kinetic energy. The data are fitted with a simple phenomenological model, which allows one to extract the $A$ dependence of the peak energy and width which characterize the pion-nucleus interaction.

NUCLEAR REACTIONS ${\pi }^{\pm }$ on natural Li, C, Al, Fe, Sn, Pb, $E=60-320\mathrm{}$ MeV; measured total $\sigma$ in transmission experiment.

• Received 29 March 1976

DOI:https://doi.org/10.1103/PhysRevC.14.635