Decay Study of 246Fm at SHIP

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The decay chain of Fm-246 has been investigated employing the SHIP separator at GSI Darmstadt. The Fm-246 nuclei were produced via the Ar-40(Pb-208, 2n)Fm-246 fusion-evaporation reaction. Improved values of the half-life, T-1/2 = 1.54(4) s, and of the spontaneous fission branching ratio, b(SF) = 0.068(6), of Fm-246 were obtained. The beta(+)/electron capture branching ratio, b(EC) = 0.39(3), of Cf-242 was deduced. Possible structures of high-K states in Fm-246 are discussed within the framework of a model calculation based on the Woods-Saxon potential.


  • M. Venhart
  • F. P. Hessberger
  • D. Ackermann
  • S. Antalic
  • C. Gray-Jones
  • P. T. Greenlees
  • S. Heinz
  • R. -D. Herzberg
  • S. Hofmann
  • S. Ketelhut
  • B. Kindler
  • I. Kojouharov
  • M. Leino
  • B. Lommel
  • R. Mann
  • P. Papadakis
  • D. Rostron
  • Dirk Rudolph
  • S. Saro
  • B. Sulignano
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Article number20
JournalEuropean Physical Journal A. Hadrons and Nuclei
Issue number2
Publication statusPublished - 2011
Publication categoryResearch