Robust test of E(5) symmetry in {sup 128}Xe.
Low-lying collectively excited states of {sup 128}Xe were investigated by {gamma}-ray spectroscopy following the {sup 12}C({sup 128}Xe,{sup 128}Xe*){sup 12}C projectile Coulomb excitation reaction. Nineteen absolute E2 transition strengths were obtained including the first measurement of the critical B(E2) decays from the second and third J{sup TT} = 0{sup +} states. These data are compared with the theoretical predictions of the critical point symmetry E(5) and allow us to conclude that {sup 128}Xe is not an E(5) nucleus as previously suggested, leaving {sup 130}Xe as the most likely candidate among the Xe isotopes.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; Bulgarian NSF; German-Bulgarian Exchange Program
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 971977
- Report Number(s):
- ANL/PHY/JA-65676
- Journal Information:
- Phys. Rev. C, Journal Name: Phys. Rev. C Journal Issue: 2009 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- ENGLISH
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