Macroscopic-microscopic energy of rotating nuclei in the fusion-like deformation valley

摘要

The energy of rotating nuclei in the fusion-like deformation valley has been determined within a liquid drop model including the proximity energy the two-center shell model and the Strutinsky method. The potential barriers of the Zr-84, Ce-132, Dy-152 and Hg-192 nuclei have been determined. A first minimum having a microscopic origin and lodging the normally deformed states disappears with increasing angular momenta. The microscopic and macroscopic energies contribute to generate a second minimum where superdeformed states may survive. It becomes progressively the lowest one at intermediate spins. At higher angular momenta, the minimum moves towards the foot of the external fission barrier leading to hyperdeformed quasi-molecular states. [References: 34]