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

Hamamoto-Kuroda, Ikuko LU and Sagawa, H (2002) In Physical Review C (Nuclear Physics) 66(4).
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.
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publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C (Nuclear Physics)
volume
66
issue
4
article number
044315
publisher
American Physical Society
external identifiers
  • wos:000179103500033
  • scopus:85035252769
ISSN
0556-2813
DOI
10.1103/PhysRevC.66.044315
language
English
LU publication?
yes
additional info
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)
id
caecbfc9-0e6e-45e6-bcd9-7b350eb4b58e (old id 909601)
date added to LUP
2016-04-01 16:35:04
date last changed
2020-01-12 19:30:50
@article{caecbfc9-0e6e-45e6-bcd9-7b350eb4b58e,
  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.},
  author       = {Hamamoto-Kuroda, Ikuko and Sagawa, H},
  issn         = {0556-2813},
  language     = {eng},
  number       = {4},
  publisher    = {American Physical Society},
  series       = {Physical Review C (Nuclear Physics)},
  title        = {Isoscalar dipole strength in Pb-208(82)126: The spurious mode and the strength in the continuum},
  url          = {http://dx.doi.org/10.1103/PhysRevC.66.044315},
  doi          = {10.1103/PhysRevC.66.044315},
  volume       = {66},
  year         = {2002},
}