Octupole effects in the lanthanides
Arrays of Anti-Compton Spectrometer enabled systematic investigations of octupole correlations in the neutron-rich lanthanides. The studies mostly confirm the theoretical expectations of moderate octupole deformation at medium spins in nuclei from this region but in some cases predictions deviate from the experiment. In cesium isotopes strong octupole effects are predicted but not observed and new measurements for {sup 139}Xe suggest octupole effects stronger than expected. Systematics of excitation energy of the 31 states excitations, updated in the present work for Xe isotopes, indicates the N=85 and Z=54 lines as borders for strong octupole correlations. Systematic of electric dipole moment, upgraded in the present work for Ca and Ce isotopes confirms the Z=54 limit and adds new information about local canceling of electric dipole moment at the N=90 neutron number.
- Research Organization:
- Argonne National Lab., IL (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 750550
- Report Number(s):
- ANL/PHY/CP-100265; TRN: US0003495
- Resource Relation:
- Conference: 2nd International Conference on Fission and Neutron-Rich Nuclei, St. Andrews, Scotland (GB), 06/28/1999--07/02/1999; Other Information: PBD: 22 Oct 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
Stable and Vibrational Octupole Modes in Mo, Xe, Ba, La, Ce and Nd
Stable and vibrational octupole modes in neutron rich nuclei