Superdeformation below {ital N}=73

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.54.R454· OSTI ID:286840

Galindo-Uribarri, A; Mullins, S M; Ward, D; Cromaz, M; DeGraaf, J; Drake, T E; Flibotte, S; Janzen, V P; Radford, D C; Ragnarsson, I ^[1]

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1. AECL, Chalk River Laboratories, Chalk River, Ontario, K0J 1J0 (CANADA)

A decoupled rotational band with an average dynamical moment of inertia {ital J}{sup (2)} {approximately}55 {h_bar}{sup 2}/MeV has been observed to high spin in {ital N}=71 {sup 129}Ce. The measured quadrupole moment of {ital Q}{sub 0} = 6.3(4) eb is as large as that of the superdeformed band in {sup 131}Ce. The large deformation and decoupled character of the band suggests that the odd neutron occupies either the {ital h}{sub 9/2}/{ital f}{sub 7/2} [541] 1/2{sup {minus}} orbital or the {ital i}{sub 13/2} [660] 1/2{sup +} intruder orbital. This is the first example of a superdeformed band extending to high spin below {ital N}=73, a neutron number that has long been considered as the boundary for superdeformation in the {ital A}{approximately}130 mass region. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286840
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 54; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CERIUM 129
CERIUM 131
DECOUPLING
HIGH SPIN STATES
MOMENT OF INERTIA
NEUTRONS
QUADRUPOLES
ROTATIONAL STATES
SUPERDEFORMED NUCLEI