Authors
Brian Bucher, Shaofei Zhu, Ching-Yen Wu, Robert Janssens, Remi Bernard, Luis Robledo, Tomas Rodriguez, Doug Cline, Adam Hayes, Akaa Ayangeakaa, Matt Buckner, Chris Campbell, Mike Carpenter, Jason Clark, Heather Crawford, Helena David, Clayton Dickerson, Jessica Harker, Calem Hoffman, Ben Kay, Filip Kondev, Torben Lauritsen, Augusto Macchiavelli, Richard Pardo, Guy Savard, Darek Seweryniak, Richard Vondrasek
Journal Paper
https://doi.org/10.1103/PhysRevLett.118.152504
Publisher URL
Publication date
March 2017
Despite the more than one order of magnitude difference between the measured dipole moments in 144Ba and 146Ba, the strength of the octupole correlations in 146Ba are found to be as strong as those in 144Ba with a similarly large value of B(E3;3−→0+) determined as 48(+21−29) 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.