Elsevier

Physics Letters B

Volume 254, Issues 3–4, 24 January 1991, Pages 308-314
Physics Letters B

A comparative study of superdeformation in 146,147,148Gd. Possible manifestations of the pseudo-SU3 symmetry, octupole shape susceptibility and superdeformed deep-hole excitations

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Abstract

Two discrete superdeformed (SD) bands have been identified in the nucleus 147Gd and the twin-band mechanism studied by comparison with SD results for 146,148Gd. Theoretical interpretation in terms of nucleonic orbitals with the Woods-Saxon potential is consistent with the pseudo-spin symmetry picture and the octupole susceptibility mechanism predicted by theory.

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    Citation Excerpt :

    The complete alignment of pseudospin along the axis of rotation was cited as partially responsible for superdeformed bands in different nuclei having virtually identical moments of inertia [27]. These bands appeared in odd, even–even, and odd–odd nuclei [28–44,26,45]. The triaxial harmonic oscillator was also shown to have pseudospin symmetry as well [46,47].

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1

Permanent address: Institute of Nuclear Physics, Cracow, Poland.

2

Permanent address: Department of Physics, Tandar, Buenos Aires, Argentina.

3

Permanent address: Institute for Theoretical Physics, University of Warsaw, PL-00-681 Warsaw, Poland.

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