Crossings in alternating-parity bands of neutron-rich Ba nuclei

Technical Report · Sat Jul 22 00:00:00 EDT 1995

DOI:https://doi.org/10.2172/510564· OSTI ID:510564

Urban, W; Jones, M A; Durell, J L ^[1]

---

1. Univ. of Manchester (United Kingdom); and others

{sup 144}Ba and {sup 146}Ba nuclei produced in the spontaneous fission of {sup 248}Cm have been studied using the EUROGRAM II array. Spins and parities of excited levels have been deduced from triple-{gamma} angular correlation and direction-polarization correlation measurements, which is the first use of these techniques in studies of fission product nuclei. Ground-state, alternating-parity bands have been extended significantly and crossing in these bands has been found in both isotopes. For the first time alternating-parity band termination by particle alignment has been observed.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: USDOE Office of Energy Research, Washington, DC (United States); Science and Engineering Research Council, Swindon (United Kingdom)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 510564
• Report Number(s): ANL/PHY/PP-87227; ON: DE97008368; CNN: Grant GRH71161; TRN: 97:014557
• Resource Relation: Other Information: PBD: 22 Jul 1995
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BARIUM 144
NUCLEAR STRUCTURE
ENERGY LEVELS
BARIUM 146
CURIUM 248
SPONTANEOUS FISSION
DEFORMATION
SPIN
PARITY