Systematics of Deformations of Atomic Nuclei

>In a search for new regions of nuclear deformation and for theoretical verification of experimentally observed re gions, the equilibrium deformations for a large region of the periodic table have been analyzed. The procedure that involves eigenvalues of the Nilsson-model hamiltonian for the self-consistent energies is outlined, and Coulomb and pairing force considerations are discussed. Deformations and energies of deformation are plotted versus neutron and proton numbers. Extended deformation regions are noted where both neutron and proton numbers go from 50 to 82 and where neutron amd proton numbers go from 82 to 126. (D.C.W.)