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New insight in the level structure of 153Er

  • Nuclear structure and reactions
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The European Physical Journal A - Hadrons and Nuclei Aims and scope Submit manuscript

Abstract:

The high-spin level structure of the 153Er nucleus has been reinvestigated by in-beam γ-ray and electron spectroscopy with (14N,pxn) reaction. Excitation energies, spin and parity assignments are unambiguously established for the two lowest isomers T 1/2≃ 380 ns and T1/2\simeq 10 ns. The characteristics of the third one (T 1/2≃ 250 ns) at 5.2 MeV are still questionable but its main decay modes are better known. An extension of the level scheme is proposed up to 8.4 MeV.Experimental results have been discussed in terms of shell model multiplets and compared with the other structures observed in N=85 neighbouring nuclei.

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Authors and Affiliations

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

    C. Foin, F. Farget, A. Gizon, D. Santos, D. Barnéoud, J. Genevey, J. Gizon & M. Ashgar

  2. CSNSM,IN2P3-CNRS, Bt.104, 91405 Campus Orsay, France, , , , , , FR

    P. Paris

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

    A. Płochocki

Authors
  1. C. Foin
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  2. F. Farget
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  3. A. Gizon
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  4. D. Santos
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  5. D. Barnéoud
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  6. J. Genevey
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  7. J. Gizon
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  8. P. Paris
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  9. M. Ashgar
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  10. A. Płochocki
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Additional information

Received: 8 November 1999 / Revised version: 13 December 1999

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Foin, C., Farget, F., Gizon, A. et al. New insight in the level structure of 153Er . EPJ A 7, 149–153 (2000). https://doi.org/10.1007/PL00013591

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  • DOI: https://doi.org/10.1007/PL00013591

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