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arXiv · 1401.1981

Spin-isospin Response in Finite Nuclei from an Extended Skyrme Interaction

Peiwei Wen·Li-Gang Cao·J. Margueron·H. Sagawa
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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.

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Peiwei Wen, Li-Gang Cao, J. Margueron, H. Sagawa. 2014-01-09. Spin-isospin Response in Finite Nuclei from an Extended Skyrme Interaction. https://doi.org/10.1103/physrevc.89.044311

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