Abstract
He ions emitted in the interaction of 70-MeV pions with carbon, aluminum, nickel, silver, and gold were measured directly at . Cross sections and energy spectra are presented. Calculations of intranuclear cascades followed by evaporation reproduced the experimental data reasonably well. The results of the calculations imply that: (1) pion absorption in flight plays a major role in reactions in which particles are emitted; and (2) one-""-removal lines, observed in deexcitation -ray experiments, do not imply large probability for real emission. The to ratio of cross sections was found to be about 1.4.
NUCLEAR REACTIONS C, Al, Ni, Ag, Au (), MeV; measured He energy spectra; . Natural targets; evaporation analysis.
- Received 19 July 1977
DOI:https://doi.org/10.1103/PhysRevC.18.961
©1978 American Physical Society