Deformation and its influence on K isomerism in neutron-rich Hf nuclei

الأصل · EN

We investigate the influence of deformation on the possible occurrence of long-lived K isomers in Hf isotopes around N=116, using configuration-constrained calculations of potential-energy surfaces. Despite having reduced shape elongation, the multi-quasiparticle states in ¹⁸⁶,¹⁸⁸Hf remain moderately robust against triaxial distortion, supporting the long expected occurrence of exceptionally long-lived isomers. The calculations are compared with available experimental data.