Study of K-Isomers in Hafnium Nuclei

The Hf nuclei are known for K isomers occuring at low excitation energies. A number of strongly deformed bands have been observed in Hf [1], Hf [2, 3]. To understand the properties of the ground and K isomeric bands of Hafnium and other nuclei one needs a theoretical model which takes into account the residual interaction among the nucleons in a large enough valence space and gives the proper deformed single-particle states and the multi-nucleon configurations for these nuclei. To this end, we have adopted in this work the Deformed Hartree-Fock (DHF) model to get the deformed single-particle states and the deformed multi-nucleon configurations. Ground and K-isomeric intrinsic states are constructed, and for each intrinsic state (configuration), states of good angular momenta are obtained by Angular Momentum Projection.