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Present status and future aspects of nuclear structure close to 100Sn

The OSIRIS, NORDBALL-PEX and EUROBALL collaborations

  • Published:
Zeitschrift für Physik A Hadrons and nuclei

Abstract

The present status of experimental approach to 100Sn in the spectroscopy of excited states is landmarked by the Tz=3/2 nuclei between 95Pd and 101In and the Tz=1 nuclei 94Pd and 98Cd. The detection limits with Pre-EUROBALL γ-arrays and ancillary detectors are below the 10−5 level of the total fusion- evaporation residue cross section. A large scale shell model analysis of the existing data reveals the shell structure at 100Sn, which shows a remarkable similarity to 56Ni. Evidence for an increasing proton-neutron interaction in approaching the N=Z line is deduced from high spin isomers and spherical yrast lines. The effective E2 operator for protons and neutrons and implications for a low lying particle-hole (ph) E2 excitation in 100Sn are discussed.

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Authors and Affiliations

  1. Gesellschaft für Schwerionenforschung, P.O. Box 110552, D-64220, Darmstadt, Germany

    H. Grawe, M. Górska, R. Schubart & M. Rejmund

  2. Hahn-Meitner-Institut, P.O. Box 390128, D-14091, Berlin, Germany

    H. Grawe, M. Górska, K.H. Maier & M. Rejmund

  3. Institute of Experimental Physics Warsaw University, Warsaw, Poland

    M. Górska & M. Rejmund

  4. J. Stefan Institute, Ljubljana, Slovenia

    M. Lipoglavisek

  5. The Svedberg Laboratory, Uppsala University, Uppsala, Sweden

    M. Lipoglavisek, A. Ataç, C. Fahlander, J. Nyberg, J. Persson & M. Weiszflog

  6. Department of Physics, Royal Institute of Technology, Stockholm, Sweden

    A. Axelsson, J. Blomqvist, J. Cederkäll, A. Johnson & L.-O. Norlin

  7. INFN, Laboratori Nazionali di Legnaro (Padova), Italy

    G. de Angelis, M. de Poli & C. Fahlander

  8. Chalmers University of Technology, Gothenburg, Sweden

    D. Foltescu, H.A. Roth & Ö. Skeppstedt

  9. Niels Bohr Institute, University of Copenhagen, Denmark

    T. Shizuma & G. Sletten

  10. Soltan Institute for Nuclear Studies, Swierk, Poland

    M. Palacz

Authors
  1. H. Grawe
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  2. M. Górska
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  3. M. Lipoglavisek
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  4. R. Schubart
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  5. A. Ataç
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  6. A. Axelsson
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  7. J. Blomqvist
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  8. J. Cederkäll
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  9. G. de Angelis
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  10. M. de Poli
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  11. C. Fahlander
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  12. A. Johnson
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  13. K.H. Maier
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  14. L.-O. Norlin
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  15. J. Nyberg
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  16. D. Foltescu
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  17. M. Palacz
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  18. J. Persson
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  19. M. Rejmund
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  20. H.A. Roth
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  21. T. Shizuma
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  22. Ö. Skeppstedt
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  23. G. Sletten
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  24. M. Weiszflog
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Additional information

Communicated by D. Schwalm

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Grawe, H., Górska, M., Lipoglavisek, M. et al. Present status and future aspects of nuclear structure close to 100Sn. Z. Phys. A 358, 185–190 (1997). https://doi.org/10.1007/s002180050302

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  • DOI: https://doi.org/10.1007/s002180050302

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