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Observation of parity doublets in the odd-odd nucleus220Ac

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Zeitschrift für Physik A Atomic Nuclei

Abstract

Excited states of220Ac have been investigated by means of the209Bi(14C,3n) reaction and using the “Château de Cristal” gamma ray facility. The observation of bands with alternating parity states reveals the reflection asymmetric nuclear shape of220Ac. The extracted B(E1)/B(E2) ratios display a clear spin dependence.

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Authors and Affiliations

  1. Centre de Recherches Nucléaires, IN2P3-CNRS/Université Louis Pasteur, BP 20, F-67037, Strasbourg, France

    N. Schulz, M. Aïche, A. Chevallier, J. Chevallier, A. J. Kreiner & J. C. Sens

  2. Instituto de Fisica da Universidade de Sao Paulo, 01498, Sao Paulo, Brazil

    V. R. Vanin

  3. Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse, F-91405, Orsay, France

    Ch. Briançon & E. Ruchowska

  4. Departamento de Fisica, Comision Nacional de Energia Atomica, RA-1429, Buenos Aires, Argentina

    M. E. Debray & A. J. Kreiner

  5. Institute of Experimental Physics, Warsaw University, PL-00-681, Warsaw, Poland

    E. Ruchowska

Authors
  1. N. Schulz
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  2. V. R. Vanin
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  3. M. Aïche
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  4. Ch. Briançon
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  5. A. Chevallier
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  6. J. Chevallier
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  7. M. E. Debray
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  8. A. J. Kreiner
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  9. E. Ruchowska
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  10. J. C. Sens
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Schulz, N., Vanin, V.R., Aïche, M. et al. Observation of parity doublets in the odd-odd nucleus220Ac. Z. Physik A - Atomic Nuclei 335, 107–108 (1990). https://doi.org/10.1007/BF01289354

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  • DOI: https://doi.org/10.1007/BF01289354

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