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Signature inversion caused by triaxiality and unpaired band crossings in 72Br

Plettner, C. ; Ragnarsson, I. LU ; Schnare, H. ; Schwengner, R. ; Käubler, L. ; Dönau, F. ; Algora, A. ; de Angelis, G. ; Napoli, D. R. and Gadea, A. , et al. (2000) In Physical Review Letters 85(12). p.2454-2457
Abstract

High-spin states in 72Br were studied with the EUROBALL III spectrometer using the 40Ca(40Ca,α3p1n) reaction. The negative-parity band observed in this experiment displays a signature inversion around spin I = 16. The interpretation within the cranked Nilsson-Strutinsky approach shows that this signature pattern is a signal of a substantial triaxial shape change with increasing spin where the nucleus evolves from a triaxial shape with rotation about the intermediate axis at low spin through a collective prolate shape to a triaxial shape but with rotation about the shortest principal axis at high spin.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
85
issue
12
pages
4 pages
publisher
American Physical Society
external identifiers
  • scopus:0034683285
ISSN
0031-9007
DOI
10.1103/PhysRevLett.85.2454
language
English
LU publication?
yes
id
e1285a50-de40-44f0-a2c7-71e0270ac84c
date added to LUP
2026-01-15 10:12:07
date last changed
2026-02-06 15:22:55
@article{e1285a50-de40-44f0-a2c7-71e0270ac84c,
  abstract     = {{<p>High-spin states in <sup>72</sup>Br were studied with the EUROBALL III spectrometer using the <sup>40</sup>Ca(<sup>40</sup>Ca,α3<sub>p</sub>1n) reaction. The negative-parity band observed in this experiment displays a signature inversion around spin I = 16. The interpretation within the cranked Nilsson-Strutinsky approach shows that this signature pattern is a signal of a substantial triaxial shape change with increasing spin where the nucleus evolves from a triaxial shape with rotation about the intermediate axis at low spin through a collective prolate shape to a triaxial shape but with rotation about the shortest principal axis at high spin.</p>}},
  author       = {{Plettner, C. and Ragnarsson, I. and Schnare, H. and Schwengner, R. and Käubler, L. and Dönau, F. and Algora, A. and de Angelis, G. and Napoli, D. R. and Gadea, A. and Eberth, J. and Steinhardt, T. and Thelen, O. and Hausmann, M. and Müller, A. and Jungclaus, A. and Lieb, K. P. and Jenkins, D. G. and Wadsworth, R. and Wilson, A. N.}},
  issn         = {{0031-9007}},
  language     = {{eng}},
  month        = {{09}},
  number       = {{12}},
  pages        = {{2454--2457}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{Signature inversion caused by triaxiality and unpaired band crossings in <sup>72</sup>Br}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.85.2454}},
  doi          = {{10.1103/PhysRevLett.85.2454}},
  volume       = {{85}},
  year         = {{2000}},
}