Vibrational spectrum of Cd112

The energies and angular distributions of proton groups produced in the Cd111(d,p)Cd112 reaction were measured with an over-all resolution of 20 keV. A distorted-wave analysis, employing experimentally determined optical-model parameters, was used to extract values of ln and spectroscopic strengths for states up to 3.3-MeV excitation in Cd112. Wave functions of Cd111 and Cd112 calculated in the random-phase approximation are tested both by comparison of sum-rule predictions with the summed spectroscopic factors, and by comparison of individual spectroscopic factors with those predicted by the microscopic theory of nuclear vibrations for states in Cd111 and the zero-, one-, and two-phonon states in Cd112.