Nuclear reactions and uncertainty analysis
Internship in theoretical nuclear physics
The so-called super-heavy elements are expected to exist beyond the liquid drop limit of existence defined by a vanishing fission barrier thanks to the shell effects. Synthesis of these very and super-heavy elements by fusion-evaporation reactions is an experimental challenge due to the extremely low cross-sections. Modelling the complete reaction in order to guide the experiments is also a difficult challenge because models developed for lighter nuclei cannot be simply extrapolated. Fusion reactions are hindered with respect to what is observed with light nuclei because of the very strong Coulomb energy. Consequently, the predictive power of the models is low and a small change of the cross-section could mean months of experiments.
An uncertainty analysis of the models is necessary to improve their predictive power. During this internship the student will learn standard as well as state-of-the-art uncertainty analysis methods and apply them some of the ingredients of the models.
Contact : David BOILLEY
GANIL, BP 5027, 14 076 Caen cedex 05
Tél. 02 31 45 47 81
Fax : 02 31 45 44 21
e-mail : boilley_at_ganil.fr