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

J Gerl; G. D. Dracoulis; A. P. Byrne; A. R Poletti; S. J Poletti; A. E. Stuchbery

doi:10.1016/0375-9474(85)90267-2

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

J Gerl, G. D. Dracoulis, A. P. Byrne, A. R Poletti, S. J Poletti, A. E. Stuchbery

Department of Nuclear Physics & Accelerator Applications

Research output: Contribution to journal › Article › peer-review

19 Citations (Scopus)

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.

Original language	English
Pages (from-to)	348-364
Number of pages	17
Journal	Nuclear Physics, Section A
Volume	443
Issue number	2
DOIs	https://doi.org/10.1016/0375-9474(85)90267-2
Publication status	Published - Sept 1985

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title = "Spectroscopy of 166W and 167W and alignment effects in very neutron-deficient tungsten nuclei",

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.",

keywords = "Nuclear Reactions",

author = "J Gerl and Dracoulis, \{G. D.\} and Byrne, \{A. P.\} and Poletti, \{A. R\} and Poletti, \{S. J\} and Stuchbery, \{A. E.\}",

year = "1985",

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doi = "10.1016/0375-9474(85)90267-2",

language = "English",

volume = "443",

pages = "348--364",

journal = "Nuclear Physics, Section A",

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TY - JOUR

T1 - Spectroscopy of 166W and 167W and alignment effects in very neutron-deficient tungsten nuclei

AU - Gerl, J

AU - Dracoulis, G. D.

AU - Byrne, A. P.

AU - Poletti, A. R

AU - Poletti, S. J

AU - Stuchbery, A. E.

PY - 1985/9

Y1 - 1985/9

N2 - 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.

AB - 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.

KW - Nuclear Reactions

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DO - 10.1016/0375-9474(85)90267-2

M3 - Article

AN - SCOPUS:4243319151

SN - 0375-9474

VL - 443

SP - 348

EP - 364

JO - Nuclear Physics, Section A

JF - Nuclear Physics, Section A

IS - 2

ER -

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

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