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Second experiment at VASSILISSA separator on the synthesis of the element 112

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Abstract.

The upgraded separator VASSILISSA was used to confirm results of previous experiments on the synthesis of the heavy isotopes of the element 112 obtained in complete-fusion reactions of 48Ca and 238U. An additional reason was the non-observation of any events in the same reaction studied with the BGS separator at Berkeley. Limits of \(280 \leq A \leq 286\) for the atomic mass number of the observed spontaneously fissioning isotope were measured. The obtained results on the decay mode, half-life and production cross-section are in agreement with those obtained in our first experiment.

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Authors and Affiliations

  1. Flerov Laboratory of Nuclear Reactions, JINR, 141980, Dubna, Russia

    Yu Ts Oganessian, A. V. Yeremin, A. G. Popeko, O. N. Malyshev, A. V. Belozerov, G. V. Buklanov, M. L. Chelnokov, V. I. Chepigin, V. A. Gorshkov, M. G. Itkis, A. P. Kabachenko, R. N. Sagaidak, A. V. Shutov, A. I. Svirikhin & G. K. Vostokin

  2. Gesellschaft für Schwerionenforschung, D-64220, Darmstadt, Germany

    S. Hofmann, B. Kindler, G. Münzenberg & H.-J. Schött

  3. Comenius University, SK-84215, Bratislava, Slovakia

    Š Šáro & B. Štreicher

Authors
  1. Yu Ts Oganessian
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  2. A. V. Yeremin
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  3. A. G. Popeko
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  4. O. N. Malyshev
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  5. A. V. Belozerov
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  6. G. V. Buklanov
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  7. M. L. Chelnokov
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  8. V. I. Chepigin
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  9. V. A. Gorshkov
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  10. S. Hofmann
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  11. M. G. Itkis
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  12. A. P. Kabachenko
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  13. B. Kindler
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  14. G. Münzenberg
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  15. R. N. Sagaidak
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  16. Š Šáro
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  17. H.-J. Schött
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  18. B. Štreicher
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  19. A. V. Shutov
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  20. A. I. Svirikhin
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  21. G. K. Vostokin
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Corresponding author

Correspondence to A. V. Yeremin.

Additional information

Communicated by J. Äystö

Received: 10 June 2003, Revised: 29 July 2003, Published online: 2 December 2003

PACS:

23.60. + e \(\alpha\) decay - 25.70.-z Low and intermediate energy heavy-ion reactions - 25.85.Ca Spontaneous fission - 27.90. + b \(A \geq 220\)

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Oganessian, Y.T., Yeremin, A.V., Popeko, A.G. et al. Second experiment at VASSILISSA separator on the synthesis of the element 112. Eur. Phys. J. A 19, 3–6 (2004). https://doi.org/10.1140/epja/i2003-10113-4

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  • DOI: https://doi.org/10.1140/epja/i2003-10113-4

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