Spin-isospin Response in Finite Nuclei from an Extended Skyrme Interaction
Nuclear Theory
2015-06-18 v1
Abstract
The magnetic dipole (M1) and the Gamow-Teller (GT) excitations of finite nuclei have been studied in a fully self-consistent Hartree-Fock (HF) plus random phase approximation (RPA) approach by using a Skyrme energy density functional with spin and spin-isospin densities. To this end, we adopt the extended SLy5st interaction which includes spin-density dependent terms and stabilize nuclear matter with respect to spin instabilities. The effect of the spin-density dependent terms is examined in both the mean field and the spin-flip excited state calculations. The numerical results show that those terms give appreciable repulsive contributions to the M1 and GT response functions of finite nuclei.
Keywords
Cite
@article{arxiv.1401.1981,
title = {Spin-isospin Response in Finite Nuclei from an Extended Skyrme Interaction},
author = {Peiwei Wen and Li-Gang Cao and J. Margueron and H. Sagawa},
journal= {arXiv preprint arXiv:1401.1981},
year = {2015}
}
Comments
6 pages, 2 figures