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Isomeric and ground-state decay of 215 Bi

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Abstract.

A new high-spin isomer in 215Bi, with a half-life of 36.9(6) s, has been identified at the PSB-ISOLDE on-line mass separator using the pulsed-release technique combined with the element selective RILIS source. A decay scheme of \(^{215{\rm m}}\)Bi was constructed and complemented with the low-spinstructure observed in \(^{215{\rm g}}\)Bi decay. The population of a cascade on top of the \(\left( \nu g_{9/2} \right)^5_{9/2+}\) level in 215Poprovides evidence for Gamow-Teller \(\beta\)-decay of the high-spin 215Bi isomer.

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Authors and Affiliations

  1. Institute of Experimental Physics, Warsaw University, Hoza 69, PL-00681, Warsaw, Poland

    J. Kurpeta, A. Plochocki, Z. Janas, M. Karny, W. Kurcewicz & K. Rykaczewski

  2. Department of Physics, Oliver Lodge Laboratory, University of Liverpool, P.O. Box 147, L697ZE, Liverpool, UK

    A. N. Andreyev

  3. Department of Physics, Accelerator Laboratory, University of Jyväskylä, FIN-40351, Jyväskylä, Finland

    J. Äystö, M. Huhta, A. Jokinen & A. Nieminen

  4. ISOLDE, CERN-PPE, CH-1211, Geneva 23, Switzerland

    J. Äystö, A.-H. Evensen, S. Franchoo, E. Kugler, U. Köster, J. Lettry, K. Partes, H. L. Ravn & L. Weissman

  5. Instituut voor Kern-en Stralingsfysica, University of Leuven, Celestijnenlaan 200D, B-3001, Leuven, Belgium

    A. De Smet, H. De Witte, M. Górska, M. Huyse, K. Van de Vel, P. Van Duppen & A. Wöhr

  6. Institute of Spectroscopy, Russian Academy of Sciences, 142190, Troitzk, Russia

    V. Fedoseyev

  7. GSI, D-64291, Darmstadt, Germany

    H. Grawe

  8. Institut de Recherches Subatomiques et Université Louis Pasteur, F-67037, Strasbourg, France

    M. Ramdhane & G. Walter

  9. ORNL Physics Division, TN 37830, Oak Ridge, USA

    K. Rykaczewski

  10. University of Munich, D-85748, Garching, Germany

    J. Szerypo

Authors
  1. J. Kurpeta
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  2. A. Plochocki
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  4. J. Äystö
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  7. A.-H. Evensen
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  12. M. Huhta
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  13. M. Huyse
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  14. Z. Janas
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  15. A. Jokinen
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  16. M. Karny
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  17. E. Kugler
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  18. W. Kurcewicz
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  19. U. Köster
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  20. J. Lettry
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  21. A. Nieminen
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  22. K. Partes
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  23. M. Ramdhane
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  24. H. L. Ravn
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  25. K. Rykaczewski
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  26. J. Szerypo
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  27. K. Van de Vel
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  28. P. Van Duppen
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  29. L. Weissman
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  30. G. Walter
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  31. A. Wöhr
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Consortia

IS387 Collaboration

ISOLDE Collaboration

Corresponding author

Correspondence to J. Kurpeta.

Additional information

Communicated by C. Signorini

Received: 3 March 2003, Revised: 10 June 2003, Published online: 9 October 2003

PACS:

23.20.Lv \(\gamma\) transitions and level energies - 27.80.+w \(190 \leq A \leq 219\) - 29.30.Kv X- and \(\gamma\)-ray spectroscopy

V. Fedoseyev: Present address: ISOLDE, CERN-PPE, CH-1211, Geneva 23, Switzerland.

M. Górska: Present address: GSI, Darmstadt, D-64220, Germany.

M. Huhta: Present address: Nokia, Tampere, Finland.

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Kurpeta, J., Plochocki, A., Andreyev, A.N. et al. Isomeric and ground-state decay of 215 Bi . Eur. Phys. J. A 18, 31–37 (2003). https://doi.org/10.1140/epja/i2003-10066-6

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