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Jagiellonian University, Acta Physica Polonica B, 3(46), p. 487, 2015

DOI: 10.5506/aphyspolb.46.487

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Recent Results at Ultrahigh Spin: Terminating States and Beyond in Mass 160 Rare-earth Nuclei

Journal article published in 2015 by Es S. Paul, Jm M. Rees, P. Hampson, M. A. Riley, J. Simpson, Ad D. Ayangeakaa ORCID, Js S. Baron, M. P. Carpenter, Cj J. Chiara, U. Garg, D. J. Hartley, C. R. Hoffman, R. V. F. Janssens, F. G. Kondev, T. Lauritsen and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

A classic region of band termination at high spin occurs in rare-earth nuclei with around ten valence nucleons above the 146Gd closed core. Results are presented here for such non-collective oblate (γ = 60°) terminating states in odd-Z 155Ho, odd-odd 156Ho, and even-even 156Er, where they are compared with neighbouring nuclei. In addition to these particularly favoured states, the occurrence of collective triaxial strongly deformed (TSD) bands, bypassing the terminating states and extending to over 65h, is reviewed.