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Journal Articles Physical Review C Year : 2014

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

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Peiwei Wen
  • Function : Author
Li-Gang Cao
  • Function : Author
J. Margueron
H. Sagawa
  • Function : Author

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.

Dates and versions

in2p3-00945610 , version 1 (12-02-2014)

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Peiwei Wen, Li-Gang Cao, J. Margueron, H. Sagawa. Spin-isospin Response in Finite Nuclei from an Extended Skyrme Interaction. Physical Review C, 2014, 89, pp.044311. ⟨10.1103/PhysRevC.89.044311⟩. ⟨in2p3-00945610⟩
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