Charge-exchange excitations with finite range interactions including tensor terms

Abstract

We study charge-exchange excitations in doubly magic-nuclei by using a self-consistent Hartree-Fock plus Random Phase Approximation model. We use four Gogny-like finite-range interactions, two of them containing tensor forces. We investigate the effects of the various parts of the tensor forces in the two computational steps of our model, and we find that their presence is not negligible and improves the agreement with the experimental data.

17 pages, 5 figures, 8 tables

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Cited by in corpus (6)

• Global description of beta-minus decay in even-even nuclei with the axially-deformed Skyrme finite amplitude method
• Properties of exotic nuclei and their linkage to the nucleonic interaction
• Electric quadrupole and magnetic dipole moments of odd nuclei near the magic ones in a self-consistent approach
• Self-consistent continuum random-phase approximation with finite-range interactions for charge-exchange excitations
• Neutron $2p$ and $1f$ spin--orbit splittings in ${}^{40}$Ca, ${}^{36}$S, and ${}^{34}$Si $N=20$ isotones: tensor--induced and pure spin--orbit effects
• Nuclear response functions with finite range Gogny force: tensor terms and instabilities