EPJ Web of Conferences
Volume 8, 2010EFNUDAT – Measurements and Models of Nuclear Reactions
|Number of page(s)||9|
|Published online||28 October 2010|
Fission-fragment and neutron data traced back to the macroscopic and microscopic properties of the fissioning systems
CENBG, CNRS/IN2P3, Chemin du Solarium, BP. 120, 33175 Gradignan, France
A new model description of fission-fragment yields and prompt neutron emission is developed. The yields of the different fission channels and their properties are attributed to the number of relevant states above the potential-energy landscape on the fission path at the moment of dynamical freeze-out, which is specific to the collective coordinate considered. The model combines well established ideas with novel concepts. The separability principle of macroscopic properties of the compound nucleus and microscopic properties of the fragments strongly reduces the number of model parameters and assures a high predictive power. The recently discovered energy-sorting mechanism in superfluid nuclear dynamics determines the sharing of intrinsic excitation energy at scission and the enhancement of even-odd structure in asymmetric splits.
© Owned by the authors, published by EDP Sciences, 2010
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