Speaker
Dr
Tomas R. Rodriguez
(GSI-Darmstadt/Universidad Autonoma de Madrid)
Description
Self-consistent mean field approaches with effective phenomenological
interactions (Skyrme, Gogny, Relativistic) have succeed in describing many
bulk properties along the whole nuclear chart. This success is closely related
to the spontaneous symmetry breaking mechanism that allows the
inclusion of many correlations within a very simple product-type wave function
which describes the system. However, in some regions this picture fails
in taking into account important correlations -pairing, deformation, shape
coexistence...- and methods beyond the mean field approach have to be
applied. Furthermore, it is mandatory to go beyond the mean field approximation
in order to evaluate excitation energies or transition probabilities
properly.
In this contribution I will present some recent advances and results obtained
with the Gogny interaction applying methods beyond mean field -in
this case, particle number and rotational symmetry restoration plus configuration
mixing in the quadrupole moment. In particular, I will show
calculations from shell to shell in Cd isotopes and also the study of possible
shell closures far from the stability in Ca, Ti, Cr.
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Author
Dr
Tomas R. Rodriguez
(GSI-Darmstadt/Universidad Autonoma de Madrid)
