Rotational bands in Ce135: Collective prolate and oblate rotation

R. Ma, E. S. Paul, D. B. Fossan, Y. Liang, N. Xu, R. Wadsworth, I. Jenkins, P. J. Nolan

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28 Scopus citations


Several rotational bands have been established in the N=77 Ce135 nucleus following the Sn122(18O,5n) reaction. At low spins, the yrast band, built on an orbital from the top of the h11/2 shell, exhibits a large signature splitting of 300 keV implying a significant deviation from axial symmetry (0°). At higher spins, three I=1 bands were established. Two of these bands are built on prolate (0°) mixed neutron-proton configurations as systematically observed in several N=75 isotones. The third of these bands shows properties similar to those observed for collectively rotating (-60°) mixed neutron-proton configurations as recently reported in nearby odd-Z, doubly odd, and even-even nuclei. The present study represents the first observation of such a band in an odd-N nucleus. In addition, two decoupled I=2 bands, built on oblate three-quasineutron configurations, were observed.

Original languageEnglish (US)
Pages (from-to)2624-2634
Number of pages11
JournalPhysical Review C
Issue number6
StatePublished - Jan 1 1990
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Ma, R., Paul, E. S., Fossan, D. B., Liang, Y., Xu, N., Wadsworth, R., Jenkins, I., & Nolan, P. J. (1990). Rotational bands in Ce135: Collective prolate and oblate rotation. Physical Review C, 41(6), 2624-2634.