Alignment effects in odd-mass Cs isotopes: Spectroscopy of Cs125

J. R. Hughes, D. B. Fossan, D. R. LaFosse, Yun Liang, P. Vaska, M. P. Waring

Research output: Contribution to journalArticle

41 Citations (Scopus)

Abstract

Several rotational bands have been populated in the Z=55 nucleus Cs125 using the fusion evaporation reaction Pd110(19F,4n), at a beam energy of 74 MeV. The resultant rays were detected using standard -ray spectroscopic techniques with an array of six Compton-suppressed Ge detectors and a fourteen-element bismuth-germanate ball. The low-lying yrast structure is found to be dominated by the unique parity h11/2 orbital, manifest as a decoupled band with a large signature splitting. A crossing occurs in this band at Latin small letter h with strokec=0.42 MeV, which is interpreted as [h11/2]2 pair alignment. In addition, a strongly coupled negative-parity structure with large B(M1)/B(E2) ratios is observed feeding both signatures of the h11/2 band. Bands built on the normal-parity g7/2 and g9/2-1 orbitals have also been confirmed and extended. These structures are compared to cranked-shell-model calculations and the systematics of the region.

Original languageEnglish (US)
Pages (from-to)2390-2399
Number of pages10
JournalPhysical Review C
Volume44
Issue number6
DOIs
StatePublished - 1991
Externally publishedYes

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isotopes
alignment
parity
spectroscopy
rays
signatures
orbitals
bismuth
balls
fusion
evaporation
nuclei
detectors
energy

ASJC Scopus subject areas

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

Cite this

Hughes, J. R., Fossan, D. B., LaFosse, D. R., Liang, Y., Vaska, P., & Waring, M. P. (1991). Alignment effects in odd-mass Cs isotopes: Spectroscopy of Cs125. Physical Review C, 44(6), 2390-2399. https://doi.org/10.1103/PhysRevC.44.2390

Alignment effects in odd-mass Cs isotopes : Spectroscopy of Cs125. / Hughes, J. R.; Fossan, D. B.; LaFosse, D. R.; Liang, Yun; Vaska, P.; Waring, M. P.

In: Physical Review C, Vol. 44, No. 6, 1991, p. 2390-2399.

Research output: Contribution to journalArticle

Hughes, JR, Fossan, DB, LaFosse, DR, Liang, Y, Vaska, P & Waring, MP 1991, 'Alignment effects in odd-mass Cs isotopes: Spectroscopy of Cs125', Physical Review C, vol. 44, no. 6, pp. 2390-2399. https://doi.org/10.1103/PhysRevC.44.2390
Hughes, J. R. ; Fossan, D. B. ; LaFosse, D. R. ; Liang, Yun ; Vaska, P. ; Waring, M. P. / Alignment effects in odd-mass Cs isotopes : Spectroscopy of Cs125. In: Physical Review C. 1991 ; Vol. 44, No. 6. pp. 2390-2399.
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