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A new μs isomer in 136Sb produced in the projectile fission of 238U

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Abstract:

The neutron-rich isotope 136Sb has been produced following the relativistic projectile fission of 238U in an experiment performed at the Fragment Separator at GSI, Darmstadt. Delayed γ-ray spectroscopy of the fission products has been performed after isotope separation. A new isomeric state in 136Sb has been populated, and its lifetime measured as T 1/2 = 565(50) ns. Realistic and empirical shell-model calculations have been performed and are compared to the experimental observables.

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Authors and Affiliations

  1. Division of Cosmic and Subatomic Physics, Lund University, SE-22100 Lund, Sweden, , , , , , SE

    M.N. Mineva, M. Hellström & D. Rudolph

  2. Gesellschaft für Schwerionenforschung mbH, D-64291 Darmstadt, Germany, , , , , , DE

    J. Gerl, H. Grawe, H. Geissel, M. Górska, I. Kojouharov, Y. Kopatch, S. Mandal, P. Mayet, C. Mazzocchi, H. Schaffner, Ch. Schlegel, K. Schmidt, K. Sümmerer & H.J. Wollersheim

  3. Institut de Physique Nucléaire d'Orsay, IN2P3-CNRS, F-91406 Orsay Cedex, France, , , , , , FR

    M. Bernas

  4. Institute of Experimental Physics, Warsaw University, PL-00861, Poland, , , , , , PL

    M. Pfützner, Z. Janas, A. Korgul & J. Kurcewicz

  5. Department of Physics, University of Surrey, Guildford, GU2 7XH, United Kingdom, , , , , , GB

    P.H. Regan & Zs. Podolyàk

  6. CEA Saclay, DSM/DAPNIA/SPhN, F-91191 Gif-sur-Yvette Cedex, France, , , , , , FR

    M. Rejmund, F. Becker, K. Hauschild, W. Korten & R. Lucas

  7. Department of Physics, University of Tennessee, Knoxville, TN 37996, USA, , , , , , US

    C.R. Bingham & R. Grzywacz

  8. Oliver Lodge Laboratory, University of Liverpool, Liverpool, L69 7ZE, United Kingdom, , , , , , GB

    T. Enqvist

  9. Department of Radiation Science, Uppsala University, S-61182 Nyköping, Sweden, , , , , , SE

    B. Fogelberg & H. Mach

  10. Department of Chemistry, University of Oslo, Blindern, N-0315 Oslo, Norway, , , , , , NO

    H. Gausemel

  11. Institut des Sciences Nucléaires, IN2P3-CNRS/Université Joseph Fourier, F-38026 Grenoble Cedex, France, , , , , , FR

    J. Genevey & J.A. Pinston

  12. Grand Accélérateur National d'Ions Lourds, BP 5027, F-14021 Caen Cedex, France, , , , , , FR

    M. Lewitowicz

Authors
  1. M.N. Mineva
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  2. M. Hellström
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  3. M. Bernas
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  4. J. Gerl
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  5. H. Grawe
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  6. M. Pfützner
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  7. P.H. Regan
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  8. M. Rejmund
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  9. D. Rudolph
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  10. F. Becker
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  11. C.R. Bingham
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  12. T. Enqvist
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  13. B. Fogelberg
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  14. H. Gausemel
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  15. H. Geissel
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  16. J. Genevey
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  17. M. Górska
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  18. R. Grzywacz
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  19. K. Hauschild
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  20. Z. Janas
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  21. I. Kojouharov
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  22. Y. Kopatch
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  23. A. Korgul
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  24. W. Korten
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  25. J. Kurcewicz
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  26. M. Lewitowicz
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  27. R. Lucas
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  28. H. Mach
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  29. S. Mandal
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  30. P. Mayet
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  31. C. Mazzocchi
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  32. J.A. Pinston
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  33. Zs. Podolyàk
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  34. H. Schaffner
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  35. Ch. Schlegel
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  36. K. Schmidt
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  37. K. Sümmerer
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  38. H.J. Wollersheim
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Additional information

Received: 23 April 2001 / Accepted: 21 May 2001

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Mineva, M., Hellström, M., Bernas, M. et al. A new μs isomer in 136Sb produced in the projectile fission of 238U. Eur Phys J A 11, 9–13 (2001). https://doi.org/10.1007/s100500170091

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  • DOI: https://doi.org/10.1007/s100500170091

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