Rotational bands in Gd140: Systematics of triaxial N=76 isotones

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

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

States up to Iπ=(20+) have been established in the neutron-deficient Gd140 nucleus by means of the Mo92(50Cr, 2pγ) reaction. At a rotational frequency Latin small letter h with strokeω=0.30 MeV, the ground-state band is crossed by a band built on the aligned [πh11/2]2 two-quasiproton configuration. This proton-aligned band was observed from spins 10+ to (20+). A second 10+ state was established which is most likely built on the [νh11/2]2 two-quasineutron configuration. The γ-vibrational band was observed up to Iπ=(8+) with the odd- and even-spin members exhibiting a pronounced signature splitting. The results are compared to those found recently for the lighter Nd136 and Sm138 N=76 isotones.

Original languageEnglish (US)
Pages (from-to)153-157
Number of pages5
JournalPhysical Review C
Volume39
Issue number1
DOIs
StatePublished - 1989
Externally publishedYes

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configurations
strokes
signatures
neutrons
nuclei
ground state
protons

ASJC Scopus subject areas

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

Cite this

Rotational bands in Gd140 : Systematics of triaxial N=76 isotones. / Paul, E. S.; Ahn, K.; Fossan, D. B.; Liang, Yun; Ma, R.; Xu, N.

In: Physical Review C, Vol. 39, No. 1, 1989, p. 153-157.

Research output: Contribution to journalArticle

Paul, E. S. ; Ahn, K. ; Fossan, D. B. ; Liang, Yun ; Ma, R. ; Xu, N. / Rotational bands in Gd140 : Systematics of triaxial N=76 isotones. In: Physical Review C. 1989 ; Vol. 39, No. 1. pp. 153-157.
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