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APS » Journals » Phys. Rev. Lett. » Volume 55 » Issue 22
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Phys. Rev. Lett. 55, 2405–2408 (1985)

Slow and Fast High-Spin Sequences in 158Er

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P. O. Tjøm*, R. M. Diamond, J. C. Bacelar, E. M. Beck, M. A. Deleplanque, J. E. Draper†, and F. S. Stephens
Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720

Received 26 August 1985; published in the issue dated 25 November 1985

Two branches are observed feeding the 38+ level of the yrast line in 158Er. Two ∼1.2-MeV cascade transitions constitute a fast (∼1 ps) collective component, probably with only minor changes in shape and structure from those at lower spin. Four slower γ rays (>2 ps) suggest a transition to a different shape and structure, most likely to an oblate 46+ state with all valence particles maximally aligned, a band termination.

© 1985 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.55.2405
DOI:
10.1103/PhysRevLett.55.2405
PACS:
23.20.Lv, 21.10.Re, 25.70.-z

*Permanent address: Institute of Physics, University of Oslo, Norway.

†Permanent address: University of California, Davis, Cal. 95616.

 
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