Scattering of Oxygen Ions from Argon and Xenon

The forward-angle elastic scattering of 153-Mev oxygen ions from a natural argon target was measured and found to be compatible with the predictions of the sharp-cutoff model using a cutoff $l$ value of 60 and a diffuseness parameter of 3.5. The forward-angle elastic scattering from a natural xenon target was similarly fitted, using a cutoff $l$ value of 91. These would correspond to radius parameters $r_0$ of the order of 1.43 and 1.47 f, respectively. A survey of the reaction products observed in scattering ${\mathrm{O}}^{16}$ ions from a target of enriched ${\mathrm{Ar}}^{40}$ is also reported.