Very high spin states in spherical and transuranic nuclei

Abstract
Deformation energy surfaces at very high spins of the nuclei in 'spherical' (Te-Sm) and transuranic (Po-Th) regions are calculated as a function of beta and gamma deformations in terms of the Strutinsky approach using the Woods-Saxon single-particle potential. In general, it is found that the nuclei in the 'spherical' region have the deepest energy minimum in the deformation energy surface at gamma =-60 degrees (oblate shape rotating around its symmetry axis) over a wide range of angular momenta (I approximately=30-70 h(cross)). The transuranic nuclei show a sudden change of their shape from nearly spherical to large prolate deformation.