EPJ Web of Conferences (Jan 2016)

Fission in the landscape of heaviest elements: Some recent examples

  • Khuyagbaatar J.,
  • Yakushev A.,
  • Düllmann Ch.E.,
  • Ackermann D.,
  • Andersson L.-L.,
  • Block M.,
  • Brand H.,
  • Even J.,
  • Forsberg U.,
  • Hartmann W.,
  • Herzberg R.-D.,
  • Heßberger F.P.,
  • Hoffmann J.,
  • Hübner A.,
  • Jäger E.,
  • Jeppsson J.,
  • Kindler B.,
  • Kratz J.V.,
  • Krier J.,
  • Kurz N.,
  • Lommel B.,
  • Maiti M.,
  • Minami S.,
  • Rudolph D.,
  • Runke J.,
  • Sarmiento L.G.,
  • Schädel M.,
  • Schausten B.,
  • Steiner J.,
  • Heidenreich T. Torres De,
  • Uusitalo J.,
  • Wiehl N.,
  • Yakusheva V.

DOI
https://doi.org/10.1051/epjconf/201613103003
Journal volume & issue
Vol. 131
p. 03003

Abstract

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The fission process still remains a main factor that determines the stability of the atomic nucleus of heaviest elements. Fission half-lives vary over a wide range, 10−19−1024 s. Present experimental techniques for the synthesis of the superheavy elements that usually measure α-decay chains are sensitive only in a limited range of half-lives, often 10−5−103 s. In the past years, measurement techniques for very short-lived and very long-lived nuclei were significantly improved at the gas-filled recoil separator TASCA at GSI Darmstadt. Recently, several experimental studies of fission-related phenomena have successfully been performed. In this paper, results on 254−256Rf and 266Lr are presented and corresponding factors for retarding the fission process are discussed.