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139Sm, a new nuclide of relevance for the systematics of theN=77 isomers

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Zeitschrift für Physik

Abstract

The ground state and an isomeric state of139Sm have been identified witht m1/2 =9.5 ± 1.0 s andt g1/2 =2.6 ± 0.3 min. The isomeric decay scheme is presented. It extends the chain of isomers withN=77. The distance between thed 3/2 andh 11/2-levels reaches a maximum forZ=60. This maximum is much more pronounced than expected from previous theoretical considerations and from systematic trends in theN=81 and 79 chains.

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Author notes

  1. M. von Hartrott

    Present address: I. Phys. Institut der Freien Universität Berlin, Germany

Authors and Affiliations

  1. Kernforschungszentrum Karlsruhe, Zyklotron-Laboratorium, Germany

    J. van Klinken, S. Göring, D. Habs, M. von Hartrott, H. Klewe-Nebenius, R. Löhken, H. Rebel & G. Schatz

  2. II. Physikalisches Institut der Universität Heidelberg, Germany

    J. van Klinken, S. Göring, D. Habs, M. von Hartrott, H. Klewe-Nebenius, R. Löhken, H. Rebel & G. Schatz

Authors
  1. J. van Klinken
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  2. S. Göring
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  3. D. Habs
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  4. M. von Hartrott
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  5. H. Klewe-Nebenius
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  6. R. Löhken
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  7. H. Rebel
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  8. G. Schatz
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Additional information

On leave from the Natuurkundig Laboratorium der Rijksuniversiteit, Groningen, The Netherlands.

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van Klinken, J., Göring, S., Habs, D. et al. 139Sm, a new nuclide of relevance for the systematics of theN=77 isomers. Z. Physik 246, 369–375 (1971). https://doi.org/10.1007/BF02115801

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  • DOI: https://doi.org/10.1007/BF02115801

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