Isoscalar dipole strength in Pb-208(82)126: The spurious mode and the strength in the continuum

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Abstract

The isoscalar dipole (compression) mode is studied first using the schematic harmonic-oscillator model, and then the self-consistent Hartree-Fock (HF) and random-phase approximation (RPA) are solved in coordinate space. Taking Pb-208 and the SkyM* interaction as a numerical example, the spurious component and the strength in the continuum are carefully examined using the sum rules. It is pointed out that in the continuum calculation one has to use an extremely fine radial mesh in HF and RPA in order to separate, with good accuracy, the spurious component from intrinsic excitations.
Original languageEnglish
Article number044315
JournalPhysical Review C (Nuclear Physics)
Volume66
Issue number4
DOIs
Publication statusPublished - 2002

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)

Subject classification (UKÄ)

  • Physical Sciences

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