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The new element 112

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Zeitschrift für Physik A Hadrons and Nuclei

Abstract

The new element 112 was produced and identified unambiguously in an experiment at SHIP, GSI Darmstadt. Two decay chains of the isotope277112 were observed in irradiations of208Pb targets with70Zn projectiles of 344 MeV kinetic energy. The isotope decays by emission of α particles with a half-life of (240 +430−90 )µs. Two different α energies of (11,649±20) keV and (11,454±20) keV were measured for the two observed decays. The cross-section measured in three weeks of irradiations is (1.0 +1.8−0.4 ) pb.

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Authors and Affiliations

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

    S. Hofmann, V. Ninov, F. P. Heßberger, P. Armbruster, H. Folger, G. Münzenberg & H. J. Schött

  2. Flerov Laboratory of Nuclear Reactions, JINR, 141 980, Dubna, Russia

    A. G. Popeko & A. V. Yeremin

  3. Department of Nuclear Physics, Comenius University, SK-84215, Bratislava, Slovakia

    S. Saro & R. Janik

  4. Department of Physics, University of Jyväskylä, FIN-40100, Jyväskylä, Finland

    M. Leino

Authors
  1. S. Hofmann
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  2. V. Ninov
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  3. F. P. Heßberger
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  4. P. Armbruster
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  5. H. Folger
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  6. G. Münzenberg
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  7. H. J. Schött
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  8. A. G. Popeko
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  9. A. V. Yeremin
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  10. S. Saro
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  11. R. Janik
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  12. M. Leino
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Communicated by B. Povh

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Hofmann, S., Ninov, V., Heßberger, F.P. et al. The new element 112. Z. Phys. A — Hadrons and Nuclei 354, 229–230 (1996). https://doi.org/10.1007/BF02769517

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  • DOI: https://doi.org/10.1007/BF02769517

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