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First observation of excited states in 197At: the onset of deformation in neutron-deficient astatine nuclei

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

Abstract:

Excited states in the Z= 85 nucleus 197At have been identified for the first time using the recoil-decay-tagging (RDT) technique. The excitation energy of these states is found to be consistent with the systematics of neutron-deficient astatine nuclei and with theoretical calculations indicating that the nucleus may be deformed in its ground state.

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Authors and Affiliations

  1. Department of Electronic Engineering and Physics, University of Paisley, High Street, Paisley PA1 2BE, UK, , , , , , GB

    M.B. Smith, R. Chapman, D.J. Middleton & K.-M. Spohr

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

    J.F.C. Cocks, O. Dorvaux, K. Helariutta, P.M. Jones, R. Julin, S. Juutinen, H. Kankaanpää, H. Kettunen, P. Kuusiniemi, M. Leino, M. Muikku, P. Nieminen, P. Rahkila & A. Savelius

  3. DAPNIA/SPhN CEA-Saclay, France, , , , , , FR

    Y. Le Coz

Authors
  1. M.B. Smith
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  2. R. Chapman
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  3. J.F.C. Cocks
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  4. O. Dorvaux
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  5. K. Helariutta
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  6. P.M. Jones
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  7. R. Julin
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  8. S. Juutinen
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  9. H. Kankaanpää
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  10. H. Kettunen
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  11. P. Kuusiniemi
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  12. Y. Le Coz
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  13. M. Leino
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  14. D.J. Middleton
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  15. M. Muikku
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  16. P. Nieminen
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  17. P. Rahkila
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  18. A. Savelius
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  19. K.-M. Spohr
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Received: 8 January 1999

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Smith, M., Chapman, R., Cocks, J. et al. First observation of excited states in 197At: the onset of deformation in neutron-deficient astatine nuclei . EPJ A 5, 43–47 (1999). https://doi.org/10.1007/s100500050254

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  • DOI: https://doi.org/10.1007/s100500050254

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