par Margueron, Jérôme;Goriely, Stéphane 
;Grasso, Marcella;Colò, Gianluca;Sagawa, Hiroyuki
Référence Modern physics letters A, 25, 21-23, page (1771-1774)
Publication Publié, 2010-07
;Grasso, Marcella;Colò, Gianluca;Sagawa, HiroyukiRéférence Modern physics letters A, 25, 21-23, page (1771-1774)
Publication Publié, 2010-07
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 G0 and G0′ could be tuned with a large flexibility without changing the ground-state properties in nuclei and in nuclear matter. © 2010 World Scientific Publishing Company. |
