Elsevier

Nuclear Physics A

Volume 443, Issue 2, 30 September 1985, Pages 348-364
Nuclear Physics A

Spectroscopy of 166W and 167W and alignment effects in very neutron-deficient tungsten nuclei

https://doi.org/10.1016/0375-9474(85)90267-2Get rights and content

Abstract

High-spin states in 166W and 167W were populated by the reactions 142Nd(28Si,4n)166W, 142Nd(28Si,3n)167W and 147Sm(24Mg,4n)167W. From the γ-decay the yrast band and a side band (with assumed negative parity) were identified to high spins. There is evidence for a second side band in 167W. The observed backbend of the yrast sequences and band-crossing anomalies in the side bands are discussed in conjunction with cranked-shell-model calculations. A systematic comparison is made between the yrast bands of 166,167,168W in order to understand the structure of the second backbend in 168W.

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Permanent address: Department of Physics, University of Auckland, private Bag, Auckland, New Zealand.

Joint appointment with School of Physics, University of Melbourne, Parkville, 3052, Australia.

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