Zeitschrift für Physik A Hadrons and Nuclei

, Volume 354, Issue 3, pp 229–230

The new element 112

Authors

  • S. Hofmann
    • Gesellschaft für Schwerionenforschung
  • V. Ninov
    • Gesellschaft für Schwerionenforschung
  • F. P. Heßberger
    • Gesellschaft für Schwerionenforschung
  • P. Armbruster
    • Gesellschaft für Schwerionenforschung
  • H. Folger
    • Gesellschaft für Schwerionenforschung
  • G. Münzenberg
    • Gesellschaft für Schwerionenforschung
  • H. J. Schött
    • Gesellschaft für Schwerionenforschung
  • A. G. Popeko
    • Flerov Laboratory of Nuclear ReactionsJINR
  • A. V. Yeremin
    • Flerov Laboratory of Nuclear ReactionsJINR
  • S. Saro
    • Department of Nuclear PhysicsComenius University
  • R. Janik
    • Department of Nuclear PhysicsComenius University
  • M. Leino
    • Department of PhysicsUniversity of Jyväskylä
Short Note

DOI: 10.1007/BF02769517

Cite this article as:
Hofmann, S., Ninov, V., Heßberger, F.P. et al. Z. Phys. A — Hadrons and Nuclei (1996) 354: 229. doi:10.1007/BF02769517

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 (240−90+430)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 (1.0−0.4+1.8) pb.

PACS

21.10.Dr23.60.+e25.70.-Z27.90.+b

Copyright information

© Springer-Verlag 1996