期刊
PHYSICAL REVIEW LETTERS
卷 118, 期 15, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.152504
关键词
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资金
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics under Contract (ANL) [DE-AC02-06CH11357]
- U.S. DOE [DE-AC52-07NA27344, DE-AC07-05ID14517]
- U.S. DOE, Office of Science, Office of Nuclear Physics by the ANL contract (LBNL) [DE-AC02-05CH11231]
- Spanish Grants [FIS2012-34479-P MINECO, FPA2015-65929-P MINECO, FIS2015-63770-P MINECO, FIS-2014-53434-P MINECO]
- Programa Ramon y Cajal [11420]
Despite the more than 1 order of magnitude difference between the measured dipole moments in Ba-144 and Ba-146, the octupole correlations in 146Ba are found to be as strong as those in Ba-144 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.
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