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

  • 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
  • S. Hofmann
  • M. G. Itkis
  • A. P. Kabachenko
  • B. Kindler
  • G. Münzenberg
  • R. N. Sagaidak
  • Š Šáro
  • H.-J. Schött
  • B. Štreicher
  • A. V. Shutov
  • A. I. Svirikhin
  • G. K. Vostokin
Letter

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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Copyright information

© Springer-Verlag Berlin/Heidelberg 2004

Authors and Affiliations

  • Yu Ts Oganessian
    • 1
  • A. V. Yeremin
    • 1
  • A. G. Popeko
    • 1
  • O. N. Malyshev
    • 1
  • A. V. Belozerov
    • 1
  • G. V. Buklanov
    • 1
  • M. L. Chelnokov
    • 1
  • V. I. Chepigin
    • 1
  • V. A. Gorshkov
    • 1
  • S. Hofmann
    • 2
  • M. G. Itkis
    • 1
  • A. P. Kabachenko
    • 1
  • B. Kindler
    • 2
  • G. Münzenberg
    • 2
  • R. N. Sagaidak
    • 1
  • Š Šáro
    • 3
  • H.-J. Schött
    • 2
  • B. Štreicher
    • 3
  • A. V. Shutov
    • 1
  • A. I. Svirikhin
    • 1
  • G. K. Vostokin
    • 1
  1. 1.Flerov Laboratory of Nuclear ReactionsJINRDubnaRussia
  2. 2.Gesellschaft für SchwerionenforschungDarmstadtGermany
  3. 3.Comenius UniversityBratislavaSlovakia

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