Isoscalar dipole strength in 82208Pb126:: The spurious mode and the strength in the continuum -: art. no. 044315

被引：27

作者：

Hamamoto, I ^{[1
]}

Sagawa, H

机构：

[1] Lund Univ, Lund Inst Technol, Dept Math Phys, Lund, Sweden

[2] Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

[3] RIKEN, Radiat Lab, Wako, Saitama 3510198, Japan

[4] Univ Aizu, Ctr Math Sci, Fukushima 968580, Japan

来源：

PHYSICAL REVIEW C | 2002年 / 66卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.66.044315

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

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.

引用

页数：7

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