Zeitschrift für Physik A Hadrons and Nuclei

, Volume 354, Issue 3, pp 229–230 | Cite as

The new element 112

  • S. Hofmann
  • V. Ninov
  • F. P. Heßberger
  • P. Armbruster
  • H. Folger
  • G. Münzenberg
  • H. J. Schött
  • A. G. Popeko
  • A. V. Yeremin
  • S. Saro
  • R. Janik
  • M. Leino
Short Note

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.Dr 23.60.+e 25.70.-Z 27.90.+b 

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • S. Hofmann
    • 1
  • V. Ninov
    • 1
  • F. P. Heßberger
    • 1
  • P. Armbruster
    • 1
  • H. Folger
    • 1
  • G. Münzenberg
    • 1
  • H. J. Schött
    • 1
  • A. G. Popeko
    • 2
  • A. V. Yeremin
    • 2
  • S. Saro
    • 3
  • R. Janik
    • 3
  • M. Leino
    • 4
  1. 1.Gesellschaft für SchwerionenforschungDarmstadtGermany
  2. 2.Flerov Laboratory of Nuclear ReactionsJINRDubnaRussia
  3. 3.Department of Nuclear PhysicsComenius UniversityBratislavaSlovakia
  4. 4.Department of PhysicsUniversity of JyväskyläJyväskyläFinland

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