The European Physical Journal D

, Volume 45, Issue 1, pp 27–31

Direct experimental evidence for very long fission times of super-heavy elements

  • M. Morjean
  • J. L. Charvet
  • A. Chbihi
  • M. Chevallier
  • C. Cohen
  • D. Dauvergne
  • R. Dayras
  • A. Drouart
  • J. D. Frankland
  • D. Jacquet
  • R. Kirsch
  • M. Laget
  • P. Lautesse
  • A. L'Hoir
  • A. Marchix
  • L. Nalpas
  • M. Parlog
  • C. Ray
  • C. Schmitt
  • C. Stodel
  • L. Tassan-Got
  • C. Volant
Production of Superheavy Elements and Nuclear Properties

DOI: 10.1140/epjd/e2007-00134-5

Cite this article as:
Morjean, M., Charvet, J., Chbihi, A. et al. Eur. Phys. J. D (2007) 45: 27. doi:10.1140/epjd/e2007-00134-5

Abstract.

The blocking technique in single crystals has been applied to reaction time measurements for the 238U + Ge system at 6.1 MeV/nucleon. Backed up with a reaction mechanism analysis using the INDRA 4π detector, it provides a direct experimental evidence for Z = 124 compound nuclei living longer than 10-18 s, indicating thus very high fission barriers for this element.

PACS.

61.85.+p Channeling phenomena (blocking, energy loss, etc.) 25.70.Jj Fusion and fusion-fission reactions 

Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2007

Authors and Affiliations

  • M. Morjean
    • 1
  • J. L. Charvet
    • 2
  • A. Chbihi
    • 1
  • M. Chevallier
    • 3
  • C. Cohen
    • 4
  • D. Dauvergne
    • 3
  • R. Dayras
    • 2
  • A. Drouart
    • 2
  • J. D. Frankland
    • 1
  • D. Jacquet
    • 5
  • R. Kirsch
    • 3
  • M. Laget
    • 5
  • P. Lautesse
    • 3
  • A. L'Hoir
    • 4
  • A. Marchix
    • 1
  • L. Nalpas
    • 2
  • M. Parlog
    • 1
  • C. Ray
    • 3
  • C. Schmitt
    • 3
  • C. Stodel
    • 1
  • L. Tassan-Got
    • 5
  • C. Volant
    • 2
  1. 1.GANIL, DSM/CEA, IN2P3/CNRSCaen Cedex 5France
  2. 2.DSM/DAPNIA/SPhN, CEA SaclayGif-sur-Yvette CedexFrance
  3. 3.IPNL, IN2P3/CNRS, Université Lyon 1Villeurbanne CedexFrance
  4. 4.INSP, Université Paris 6 et Paris 7ParisFrance
  5. 5.IPN Orsay, BP 1Orsay CedexFrance