Evidence for a structural similarity of quasimolecular resonances observed in various heavy-ion reactions is presented. Detailed comparison of nuclear rotational bands concerning moments of inertia and band-head energies and of partial and total widths of the corresponding intermediate structures suggests that resonant configurations in different $\mathrm{sd}$-shell nuclei are of a similar molecular type and consist basically of a more or less inert ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ core surrounded by nucleons or nucleon clusters. A brief discussion of the model predictions and of possible experimental tests is given.

NUCLEAR STRUCTURE Heavy-ion reactions, empirical relations for quasimolecular resonances; deduced structural similarity among resonances.

• Received 15 November 1982

DOI:https://doi.org/10.1103/PhysRevC.28.202