Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-06-18
Physics
Nuclear Physics
Nuclear Theory
18 pages, 4 tables, 6 figures
Scientific paper
We study the effect of time-odd components of the Skyrme energy density functionals on the ground state of finite nuclei and in nuclear matter. The spin-density dependent terms, which have been recently proposed as an extension of the standard Skyrme interaction, are shown to change the total binding energy of odd-nuclei by only few tenths of keV, while the time-odd components of standard Skyrme interactions give an effect that is larger by one order of magnitude. The HFB-17 mass formula based on a Skyrme parametrization is adjusted including the new spin-density dependent terms. A comprehensive study of binding energies in the whole mass table of 2149 nuclei gives a root mean square (rms) deviation of 0.575 MeV between experimental data and the calculated results, which is slightly better than the original HFB-17 mass formula. 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 $G_0^\prime$ could be tuned with a large flexibility without changing the ground-state properties in nuclei and in nuclear matter.
Colò Gianluca
Goriely Stephane
Grasso Marcella
Margueron Jerome
Sagawa Hiroyuki
No associations
LandOfFree
Extended Skyrme interaction (II): ground state of nuclei and of nuclear matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Extended Skyrme interaction (II): ground state of nuclei and of nuclear matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extended Skyrme interaction (II): ground state of nuclei and of nuclear matter will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-725919