Shape coexistence in Ba132

E. S. Paul, D. B. Fossan, Yun Liang, R. Ma, N. Xu

Research output: Contribution to journalArticle

68 Citations (Scopus)

Abstract

Rotational states have been populated in -soft Ba132 following the Sn122(13C,3n) reaction. The ground state of this nucleus is predicted to possess maximal triaxiality -30°. Two I=2 bands were established, based on quasineutron configurations with large negative deformations close to the collective oblate shape =-60°. The bandhead of one of these bands, associated with a [h11/2]2 configuration, was found to be isomeric with a mean lifetime =12.50.3 ns. A third I=2 band was observed, built on a two-quasiproton configuration with a near-prolate shape (0°). In addition, two I=1 bands, built on mixed proton-neutron four-quasiparticle configurations with oblate shapes (-60°), were established.

Original languageEnglish (US)
Pages (from-to)1255-1264
Number of pages10
JournalPhysical Review C
Volume40
Issue number3
DOIs
StatePublished - 1989
Externally publishedYes

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configurations
triaxial stresses
rotational states
neutrons
life (durability)
nuclei
ground state
protons

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Paul, E. S., Fossan, D. B., Liang, Y., Ma, R., & Xu, N. (1989). Shape coexistence in Ba132. Physical Review C, 40(3), 1255-1264. https://doi.org/10.1103/PhysRevC.40.1255

Shape coexistence in Ba132. / Paul, E. S.; Fossan, D. B.; Liang, Yun; Ma, R.; Xu, N.

In: Physical Review C, Vol. 40, No. 3, 1989, p. 1255-1264.

Research output: Contribution to journalArticle

Paul, ES, Fossan, DB, Liang, Y, Ma, R & Xu, N 1989, 'Shape coexistence in Ba132', Physical Review C, vol. 40, no. 3, pp. 1255-1264. https://doi.org/10.1103/PhysRevC.40.1255
Paul, E. S. ; Fossan, D. B. ; Liang, Yun ; Ma, R. ; Xu, N. / Shape coexistence in Ba132. In: Physical Review C. 1989 ; Vol. 40, No. 3. pp. 1255-1264.
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