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Band crossings in <sup>170</sup>Os

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Date

1988

Authors

Dracoulis, G. D.
Bark, R. A.
Stuchbery, A. E.
Byrne, A. P.
Baxter, A. M.
Riess, F.

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Research Projects

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Abstract

Excited states in the neutron-deficient nucleus 170Os were identified up to spin (24+) in the yrast band and to spin (23-) in the lowest negative-parity band. Deformation systematics implied by the 2+ state energies for the very light osmium isotopes are compared with theory. Band-crossing frequencies, alignments and alignment gains are compared with cranked shell-model calculations. Deformation changes are required to obtain detailed agreement. A three-band mixing approach is invoked to explain the low-spin yrast anomaly in 172Os and to reproduce the yrast band in 170Os. The excitation energy of the postulated "intruder" band in 170Os and 172Os is deduced.

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NUCLEAR REACTIONS

Citation

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https://hdl.handle.net/1885/733798061

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ANU Research Publications

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Nuclear Physics, Section A

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Journal article

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DOI

10.1016/0375-9474(88)90244-8

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