par Margueron, Jérôme;Grasso, Marcella;Goriely, Stéphane ;Colò, Gianluca;Sagawa, Hiroyuki
Référence Progress of theoretical physics. Supplement, 196, page (172-175)
Publication Publié, 2012
Article révisé par les pairs
Résumé : Most of the Skyrme interactions are known to predict spin or isospin instabilities beyond the saturation density of nuclear matter which contradict predictions based on realistic interactions. A modification of the standard Skyrme interaction is proposed so that the ferromagnetic instability is removed. The new terms are density dependent and modify only the spin p-h interaction in the case of spin-saturated system. We have shown that these new terms change the total binding energy of odd-nuclei by only few tenths of keV. From the analysis of the spin instabilities of nuclear matter, restrictions on the parameters governing the spin-density dependent terms are evaluated. We conclude that with the extended Skyrme interaction, the Landau parameters G 0 and G 0 could be tuned with a large flexibility without changing the ground-state properties in nuclei and in nuclear matter.