1 research outputs found
Direct Evidence for Octupole Deformation in Ba and the Origin of Large Moment Variations in Reflection-Asymmetric Nuclei
Despite the more than one order of magnitude difference between the measured
dipole moments in Ba and Ba, the strength of the octupole
correlations in Ba are found to be as strong as those in Ba
with a similarly large value of determined as
48() W.u. The new results not only establish unambiguously the
presence of a region of octupole deformation centered on these neutron-rich Ba
isotopes, but also manifest the dependence of the electric dipole moments on
the occupancy of different neutron orbitals in nuclei with enhanced octupole
strength, as revealed by fully microscopic calculations.Comment: 6 pages, 5 figures, accepted for publication in Phys. Rev. Let