Self-consistent continuum random-phase approximation with finite-range interactions for charge-exchange excitations
Year: 2016
Type: article
Abstract: The formalism of the continuum random-phase approximation theory which treats, without approximations, the continuum part of the single-particle spectrum, is extended to describe charge-exchange excitations. Our approach is self-consistent, meaning that we use a unique, finite-range interaction in the Hartree-Fock calculations which generate the single-particle basis and in the continuum-random phase approximation which describes the excitation. We study excitations induced by the Fermi, Gamow-Teller and spin-dipole operators in doubly magic nuclei by using four Gogny-like finite-range interactions, two of them containing tensor forces. We focus our attention on the importance of the correct treatment of the continuum configuration space and on the effects of the tensor terms of the force.
Source: Physical Review C
Authors: V. De Donno, G. Co', M. Anguiano, A. M. Lallena
Institution: University of Salento
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Award: G4170949726
OpenAlex ID: W2332742596