Deformation-driving properties of the. nu. i/sub 13/2/(660)(1/2/sup +/ intruder orbital for Aapprox. 130 nuclei

Journal Article · Mon Jul 04 00:00:00 EDT 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.61.42· OSTI ID:7057677

Paul, E S; Ma, R; Beausang, C W; Fossan, D B; Piel, Jr, W F; Shi, S; Xu, N; Zhang, J

Several rotational-band structures have recently been observed in mass Aapprox. =130 nuclei, built on multiquasiparticle states of enhanced quadrupole deformation, the so-called superdeformed states (..beta..approx. =0.4). In /sup 137/Sm, a decoupled band built on the ..nu..i/sub 13/2/(660)(1/2/sup +/ single-quasineutron orbital, intruding from two oscillator shells above with a predicted ..beta..approx. =0.35, was observed to low spin and excitation energy. The role of this ..beta..-driving ..nu..i/sub 13/2/ orbital, which showed a 50% enhanced moment of inertia, is discussed in terms of the superdeformation in this mass region.

• Research Organization: Department of Physics, State University of New York at Stony Brook, Stony Brook, New York 11794
• OSTI ID: 7057677
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 61:1
• Country of Publication: United States
• Language: English

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