Octupole states in deformed actinide nuclei with the interacting boson approximation

Journal Article · Tue Sep 01 04:00:00 EDT 1998 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.58.1500· OSTI ID:641681

Cottle, P D ^[1]; Zamfir, N V ^[2]

---

1. Department of Physics, Florida State University, Tallahassee, Florida 32306-4350 (United States)
2. WNSL, Yale University, New Haven, Connecticut 06520 (United States)

Octupole states have been studied systematically in the deformed actinide nuclei {sup 230}Th, {sup 234,236,238}U, {sup 240}Pu, {sup 246}Cm, and {sup 250}Cf using the interacting boson approximation 1. Parameters for the positive parity cores were set by reproducing data from the ground state and {gamma}-vibration bands with the extended consistent-Q formalism. A prescription for setting the parameter {epsilon}{sub f} systematically was adopted for the calculations of the octupole bands. The ordering of the K{sup {pi}}=0{sup {minus}}, 1{sup {minus}}, and 2{sup {minus}} bands and the behavior of many E1 and E3 transitions are well reproduced with a narrow range of parameters, particularly when the existence of a N=164 subshell gap is assumed. It is predicted that in {sup 246}Cm and {sup 250}Cf the K{sup {pi}}=3{sup {minus}} octupole states built on the ground state are located above 6 MeV and are strongly fragmented. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 641681
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 3 Vol. 58; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CALIFORNIUM 250
CURIUM 246
DEFORMED NUCLEI
ENERGY-LEVEL TRANSITIONS
INTERACTING BOSON MODEL
PLUTONIUM 240
THORIUM 230
URANIUM 234
URANIUM 236
URANIUM 238
VIBRATIONAL STATES