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Yrast four-quasi-particle states in <sup>182</sup>W

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Date

1994

Authors

Regan, P. H.
Walker, P. M.
Dracoulis, G. D.
Anderssen, S. S.
Byrne, A. P.
Davidson, P. M.
Kibèdi, T.
Lane, G. J.
Stuchbery, A. E.
Yeung, K. C

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Abstract

High-spin states of the stable isotope 182W have been studied using the reactions 176Yb(13C, α3n)182W and 176Yb(9Be, 3n)182W at beam energies of 65 and 40 MeV, respectively. Three, possibly four, new intrinsic states at high spins have been observed corresponding to different high-K four-quasi-particle structures. The Kπ = 15+ and 17- levels have lifetimes of 78(15) and 25(10) ns, respectively. Rotational bands are observed built on the Kπ = 16+ and 17- yrast states. The coupling of Nilsson orbitals which give rise to high-K states at the yrast line and the K-forbiddenness of the Kπ = 15 + isomeric decay are discussed.

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NUCLEAR REACTIONS

Citation

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https://hdl.handle.net/1885/733798049

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ANU Research Publications

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Nuclear Physics, Section A

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DOI

10.1016/0375-9474(94)90156-2

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