Excitation functions for inelastic scattering of ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ leading to the first $5^{-}$ state and ($2^{+}$ + $3^{-}$) states in ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$ have been measured at the first maxima of the angular distributions. A monotonic increase with bombarding energy is observed for these cross sections, with no indication of the oscillatory structure seen for the 180° elastic scattering excitation function.

NUCLEAR REACTIONS ${}_{}{}^{40}{}_{}{}^{}\mathrm{Ca}$(${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$, ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$') inelastic scattering; $E_{\mathrm{lab}}=50-70\mathrm{}$ MeV, 0.5 MeV steps; coupled channel analysis.

• Received 17 April 1981

DOI:https://doi.org/10.1103/PhysRevC.24.1340