https://doi.org/10.1051/epjconf/20100803003
Excitation-energy sorting in superfluid fission dynamics
CENBG, CNRS/IN2P3, Chemin du Solarium, BP. 120, 33175 Gradignan, France
a e-mail: jurado@cenbg.in2p3.fr
b e-mail: k.h.schmidt@gsi.de
It is now well established that at moderate excitation energies the nucleus temperature does not vary with increasing excitation energy. We show that, as a consequence, two nuclei with different temperatures brought into contact show a rather surprising energy-sorting mechanism where the hotter nucleus transfers all its excitation energy to the colder one. The scission configuration of the fission process offers a unique possibility to observe this phenomenon. The energy-sorting mechanism is clearly reflected by the mean number of prompt neutrons as a function of the fragment mass and by the dependence of the local even-odd effect with mass asymmetry.
© Owned by the authors, published by EDP Sciences, 2010
