Microscopic Study of Nuclear Quadrupole Collective Motions in Terms of the Boson Expansion Theory

摘要

Structures of the collective wave functions of the normal-ordered linkedclusterboson expansion theory (NOLC-BET) are investigated. Numericalresults are presented for some low-lying collective states in neutron-deficientbarium isotopes, and properties of excited 0+ states and an evolution ofthe collective mode as the neutron number changes are discussed.