Le groupe des francophones Heirs of P. Bonche, H Flocard, D Vautherin, …
with still two ancestors: P-H Heenen and J. Meyer
and many young people:
M Bender and T Duguet
K Bennaceur, D Lacroix, T Lesinski, M. Martini and V Hellemans
J. Sadoudi and B. Gebremariam
Le groupe des francophones Heirs of P. Bonche, H Flocard, D Vautherin, …
with still two ancestors: P-H Heenen and J. Meyer
and many young people:
M Bender and T Duguet
K Bennaceur, D Lacroix, T Lesinski, M. Martini and V Hellemans
J. Sadoudi and B. Gebremariam
Energy density functional and divergences or steps
M. Bender, T. Duguet and D. Lacroix
-removal of spurious contributions for non diagonal energy kernels
-construction of a “safe” functional and the way to use it
Work in progress, close to be included in a limited manner in all codes
Energy density functional from fundamental interactions
T. Duguet, K. Bennaceur, B. Gebremariam, T. Lesinski
-significant breakthrough for pairing
-in progress for the mean-field part of the interaction
-extension and applications of the density matrix expansion
Fit of an EDF All the group:
Tensor terms: included in spherical, ev8, ev4 and
the cranking code (cr8) and in several beyond mean-field codes
Consequences of the tensor terms on different nuclear properties
(rotational bands of well deformed nuclei)
- Properties of the terms related to densities which are non zero
only when time reversal invariance is broken (Landau parameters
cooking…)
Point of methodology: only use of interactions which are fully
refitted in the SLy spirit!
Still to be done: a functional depending on integer
powers of the density, without pathologies (or which can be cured…)
Beyond mean-field methods M. Bender and P.-H. Heenen Triaxiality and breaking of time-reversal invariance are included
in a new code
First application for triaxiality to 24Mg completed, another one
to 32Mg underway
-Exploratory applications for cranking states indicate that the gain
is in the right direction
-More extensive applications are waiting progresses in the
construction of functionals (qp excitations!)
Others M. Bender, P-H Heenen, R Janssens in particular
Systematic studies of different approximations of odd nuclei
in the transactinide region.
Motivations:
- pedagogy
- what is the simplest way to use this kind of experimental
information to constrain interactions. All the group:
-dynamical treatment of pairing (pairing vibrations):
codes are (nearly) available, waiting a safe interaction.
TRI applications for axial states have a success (around Pb) with experimentalists which induces many applications
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