Continuum quasiparticle random-phase approximation description of isovector E-1 giant resonances
Jul, 1998
6 pages
Published in:
- Phys.Rev.C 58 (1998) 172-178
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Abstract: (APS)
Isovector E1 giant resonances in nonmagic nuclei are calculated by using a method which takes into account the single-particle continuum in the framework of a continuum quasiparticle random-phase approximation. A special procedure is formulated which gives the spurious dipole state at zero energy. The calculations are performed in a stable nonmagic tin isotope as well as unstable magic and nonmagic tin isotopes. The role of the single-particle continuum and the spurious dipole state is discussed. It turned out that the first ingredient has a noticeable influence on the resonance form.- 27.60.+j
- 24.30.Cz
- 21.60.Jz
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