Applications Of Nilsson Mean-field Plus Extended Pairing Model For Well-deformed Nuclei In Rare-earth Region

A Nilsson mean-field plus extended pairing force with multi-pair interaction for the description of well-deformed nuclei is adopted.Eigen-energies of the model and the corresponding wavefunctions can easily be evaluated by using a numerical algorithm based on the exact solution.As application of the model,binding energies,pairing excitation energies,evenodd mass differences of^152-169Er,^154-171Yb,^158-173Hf isotopes are calculated in proton pair excitation frozen approximation,and compared with the corresponding experimental data.The results Show that the model is suitable to be used to describe well-deformed nuclei in rare-earth region.