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Shape coexistence in187Hg

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Zeitschrift für Physik A Atomic Nuclei

Abstract

Excited states of187Hg have been investigated via the164Dy (28Si,5n) reaction by means of in- beam gamma-ray spectroscopy using the multidetector 4π away “Ckāteau de. Cristal”. Different bands were populated up to spin I- 45/2. Coexistence of both prolate and oblate structures is observed for the first time in an odd- A Hg isotope. The crossing of aligned and strongly coupled sequences of levels built on the vi13/2 orbital infers the near degeneracy of oblate and prolate structures in187Hg.

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Author information

Author notes

  1. L. Hildingsson & D. Jerrestam

    Present address: Research Institute of Physics, S-10405, Stockholm, Sweden

Authors and Affiliations

  1. Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, F-91406, Orsay, France

    F. Hannachi, G. Bastin, M. G. Porquet, C. Schück & J. P. Thibaud

  2. Institut de Physique Nucléaire, F-91406, Orsay, France

    C. Bourgeois, L. Hildingsson, D. Jerrestam, N. Perrin & H. Sergolle

  3. Centre de Recherches Nucléaires, F-67037, Strasbourg, France

    F. A. Beck, T. Byrski & J. C. Merdinger

Authors
  1. F. Hannachi
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  2. G. Bastin
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  3. M. G. Porquet
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  4. C. Schück
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  5. J. P. Thibaud
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  6. C. Bourgeois
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  7. L. Hildingsson
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  8. D. Jerrestam
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  9. N. Perrin
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  10. H. Sergolle
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  11. F. A. Beck
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  12. T. Byrski
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  13. J. C. Merdinger
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Additional information

Visitor on a grant from the Swedish National Science Research Council, contact number. F-PD 1499-100

We are indebted to Dr. Y. Gono from the I.P.C.R. Riken for providing us 4 BGO anti-Compton shields.

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Hannachi, F., Bastin, G., Porquet, M.G. et al. Shape coexistence in187Hg. Z. Physik A - Atomic Nuclei 325, 371–372 (1986). https://doi.org/10.1007/BF01294622

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  • DOI: https://doi.org/10.1007/BF01294622

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