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Search for long-lived superheavy elements in the reaction of136Xe with238U

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

A search with radiochemical methods for long-lived superheavy elements in 238U targets bombarded with intense beams of136Xe ions produced negative results. A formation cross section of ≤1×10−35 cm2 is deduced at 95% confidence level for nuclides with half-lives between 1 and 200 d.

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References

  1. G. N. Flerov and Yu. Ts. Oganessian, in Proc. Sympos. on the Chemistry of Transuranium Elements, Moscow, Sept. 1972, J. Inorg. Nucl. Chem. Suppl. 1976, p. 131.

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  3. G. N. Flerov, in Proc. Int. Conf. on Selected Topics in Nuclear Structure, Dubna, June 1976, Vol. 2, p. 3; engl. transl. JINR-E7-10128 (1976).

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  4. W. Brüchle et al., GSI Annual Report 1977, and to be published.

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Author information

Authors and Affiliations

  1. Gesellschaft für Schwerionenforschung, D-6100, Darmstadt, Germany

    H. Gäggeler, W. Brüchle, H. Ahrens, H. Folger, G. Franz, J. V. Kratz, M. Schädel, I. Warnecke & G. Wirth

  2. Institut für Kernchemie, Universität Mainz, D-6500, Mainz, Germany

    N. Trautmann, G. Herrmann, N. Kaffrell, P. Peuser, G. Tittel, M. Weber & M. Zendel

  3. GSI Darmstadt, Germany

    G. Herrmann

Authors
  1. H. Gäggeler
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  2. W. Brüchle
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  3. H. Ahrens
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  4. H. Folger
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  5. G. Franz
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  6. J. V. Kratz
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  7. M. Schädel
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  8. I. Warnecke
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  9. G. Wirth
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  10. N. Trautmann
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  11. G. Herrmann
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  12. N. Kaffrell
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  13. P. Peuser
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  14. G. Tittel
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  15. M. Weber
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  16. M. Zendel
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Additional information

We are indebted to the UNILAC crew for providing intense xenon beams. The Mainz group acknowledges financial support from the Bundesministerium für Forschung und Technologie.

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Gäggeler, H., Brüchle, W., Ahrens, H. et al. Search for long-lived superheavy elements in the reaction of136Xe with238U. Z Physik A 286, 419–420 (1978). https://doi.org/10.1007/BF01408901

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  • DOI: https://doi.org/10.1007/BF01408901

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