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.
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Morjean, M., Charvet, J., Chbihi, A. et al. Direct experimental evidence for very long fission times of super-heavy elements. Eur. Phys. J. D 45, 27–31 (2007). https://doi.org/10.1140/epjd/e2007-00134-5
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DOI: https://doi.org/10.1140/epjd/e2007-00134-5