ELFT HÍRADÓ

[Zoltan Mate <mate AT moon.atomki.hu>]

Az MTA Atommagkutato Intezetenek nagyeloadojaban
(Debrecen, Bem ter 18/c. 12. ep. III. em.)
2004. januar 8-an, csutortokon 11:00 orakor


                 Paul-Henri Heenen
           (Universite Libre de Bruxelles)

        Beyond Skyrme mean-field: Why and How


cimmel eloadast tart.
Vendegeket szivesen latunk.
A hirdetes keseseert elnezest kerek.

Debrecen, 2004. januar 7.

                                   Mate Zoltan

Abstract:
The Hartree-Fock Bogoliubov method with effective interactions has been 
extremely successful in the description of the properties of exotic nuclei. 
However, to work  in an intrinsic system of reference has several drawbacks 
and is justified only for nuclei with well defined deformation. The main 
deficiencies of the wave functions are that they are not eigenstates of 
angular momentum and particle number and that they have a fixed deformation. 
A single framework permits to cure these deficiencies: the generator 
coordinate method, which is equivalent to a configuration mixing method. 
I will show how this can be done in the particular mean-field method based 
on Skyrme interactions and on a discretization on a 3-dimensional mesh that 
has been developed by the Brussels-Paris collaboration.  On specific 
examples, I will compare calculations of spectra and transition 
probabilities directory in the laboratory frame  of reference to 
experimental data. Finally, I will discuss how to calculate systematically 
the correlation energies due to angular momentum projection and to 
quadrupolar vibrations in order to incorporate them in a microscopic 
theory of nuclear masses.