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Transition strengths and band terminations in 86Zr

Wiedeking, M. ; Tabor, S. L. ; Cristancho, F. ; Devlin, M. ; Doring, J. ; Jackson, C. B. ; Johns, G. D. ; Kaye, R. A. ; Lee, I. Y. and Lerma, F. , et al. (2003) In Physical Review C - Nuclear Physics 67(3). p.343201-3432014
Abstract

High angular momentum states in 86Zr were populated through the 58Ni(32S,4p) reaction at 135 MeV using the 88-In. Cyclotron at Lawrence Berkeley National Laboratory. Recoiling 86Zr nuclei were stopped in a thick Ta backing. Prompt multi-γ coincidences with evaporated charged particles were detected using the full array of GAMMASPHERE and the MICROBALL. Mean lifetimes of 36 levels in 86Zr were measured using the Doppler-shift attenuation method. Transition quadrupole moments Qt were found in the range of about 0.3-1.5 e b in the positive-parity bands. The negative-parity bands show Qt values from about 0.25 to 1.2 e b. In the yrast positive-parity band, a sharp... (More)

High angular momentum states in 86Zr were populated through the 58Ni(32S,4p) reaction at 135 MeV using the 88-In. Cyclotron at Lawrence Berkeley National Laboratory. Recoiling 86Zr nuclei were stopped in a thick Ta backing. Prompt multi-γ coincidences with evaporated charged particles were detected using the full array of GAMMASPHERE and the MICROBALL. Mean lifetimes of 36 levels in 86Zr were measured using the Doppler-shift attenuation method. Transition quadrupole moments Qt were found in the range of about 0.3-1.5 e b in the positive-parity bands. The negative-parity bands show Qt values from about 0.25 to 1.2 e b. In the yrast positive-parity band, a sharp drop in collectivity approaching the 30+ state supports the interpretation of band termination in this configuration. Decreasing Qt values approaching the 24+ and 27- states also provide an indication of terminating structures.

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Contribution to journal
publication status
published
subject
in
Physical Review C - Nuclear Physics
volume
67
issue
3
article number
034320
pages
3088814 pages
publisher
American Physical Society
external identifiers
  • scopus:0037566070
ISSN
0556-2813
language
English
LU publication?
yes
id
a8bf28c5-b9fc-4479-8d27-0cba95d7e3f2
date added to LUP
2023-12-08 16:38:36
date last changed
2023-12-08 16:39:05
@article{a8bf28c5-b9fc-4479-8d27-0cba95d7e3f2,
  abstract     = {{<p>High angular momentum states in <sup>86</sup>Zr were populated through the <sup>58</sup>Ni(<sup>32</sup>S,4p) reaction at 135 MeV using the 88-In. Cyclotron at Lawrence Berkeley National Laboratory. Recoiling <sup>86</sup>Zr nuclei were stopped in a thick Ta backing. Prompt multi-γ coincidences with evaporated charged particles were detected using the full array of GAMMASPHERE and the MICROBALL. Mean lifetimes of 36 levels in <sup>86</sup>Zr were measured using the Doppler-shift attenuation method. Transition quadrupole moments Q<sub>t</sub> were found in the range of about 0.3-1.5 e b in the positive-parity bands. The negative-parity bands show Q<sub>t</sub> values from about 0.25 to 1.2 e b. In the yrast positive-parity band, a sharp drop in collectivity approaching the 30<sup>+</sup> state supports the interpretation of band termination in this configuration. Decreasing Q<sub>t</sub> values approaching the 24<sup>+</sup> and 27<sup>-</sup> states also provide an indication of terminating structures.</p>}},
  author       = {{Wiedeking, M. and Tabor, S. L. and Cristancho, F. and Devlin, M. and Doring, J. and Jackson, C. B. and Johns, G. D. and Kaye, R. A. and Lee, I. Y. and Lerma, F. and Macchiavelli, A. O. and Naidu, M. and Ragnarsson, I. and Sarantites, D. G. and Solomon, G. Z.}},
  issn         = {{0556-2813}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{3}},
  pages        = {{343201--3432014}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C - Nuclear Physics}},
  title        = {{Transition strengths and band terminations in <sup>86</sup>Zr}},
  volume       = {{67}},
  year         = {{2003}},
}