Abstract
From a study of theγ-decay of high-spin states populated using the (α, 8n) reaction, the ground-state rotational band in182Os has been established up to spin 20+. A plot of the moment of inertia as a function of the square of the rotational frequency for this ground-state band results in a back-and-forwardbending curve, indicating that an explanation in terms of pure Coriolis decoupling in thei 13/2 neutron orbital requires revision. The moment of inertia reaches a maximum of only 74% of the rigid rotor value.
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The authors gratefully acknowledge the technical help of Mr. H. M. Jäger, the fabrication of a high-resolution Ge(Li) detector by Dr. G. Riepe and Mr. D. Protić, and the assistance given by the operating crew of the cyclotron. We are grateful to Professor Z. Szymanski for valuable discussions.
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Davidson, W.F., Lieder, R.M., Beuscher, H. et al. Observation of back- and forwardbending in the182Os ground-state band. Z. Physik 264, 235–240 (1973). https://doi.org/10.1007/BF01396279
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DOI: https://doi.org/10.1007/BF01396279