Atomic-Charge-State Distributions of Fusion-Evaporation Residues and Nuclear Shape Changes at High Spin

Abstract

The average internal-conversion probabilities as a function of spin for continuum $\ensuremath{\gamma}$ transitions are deduced from the energy dependence of the evaporation-residue atomic-charge-state distributions. Strongly enhanced internal-conversion probabilities are observed at high spin. The implications of these results for nuclear shapes at high spin are considered.