Long lifetime components in the decay of excited super-heavy nuclei
1 GANIL, CEA-DSM and IN2P3-CNRS, B.P. 55027, F-14076 Caen Cedex, France
2 Department of Nuclear Physics, Research School of Physics and Engineering, The Australian National University, ACT 0200, Australia
3 CEA-Saclay, IRFU/Service de Physique Nucléaire, F-91191, Gif sur Yvette Cedex France
4 IPNO, CNRS/IN2P3, Université Paris-Sud 11, F-91406, Orsay Cedex France
5 LPC, CNRS/IN2P3, ENSICAEN, Université de Caen, F-14050, Caen Cedex France
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Published online: 19 December 2013
For nuclear reactions in which super-heavy nuclei can be formed, the essential difference between the fusion process followed by fission and non-equilibrium processes leading to fission-like fragments is there action time. Quite probable non-equilibrium processes, characterized by very short reaction times, are highlighted thanks to mass-angle correlations. However, long lifetime components associated with fission following fusion have been observed with two independent experimental techniques, providing evidence for the formation of compound nuclei with Z = 120 and 124, followed by mass asymmetric fission.
© Owned by the authors, published by EDP Sciences, 2013
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