Relativistic continuum quasiparticle random-phase approximation in spherical nuclei
Relativistic continuum quasiparticle random-phase approximation in spherical nuclei
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DOI：
10.1103/physrevc.83.044303
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发表时间：
2011-03
影响因子：
3.1
通讯作者：
I. Daoutidis;P. Ring
中科院分区：
文献类型：
--
作者：
I. Daoutidis;P. Ring
We have calculated the strength distributions of the dipole response in spherical nuclei, ranging all over the periodic table. The calculations were performed within two microscopic models: the discretized quasiparticle random-phase approximation and the continuum quasiparticle random-phase approximation, which takes into account the coupling of the single-particle continuum in an exact way. Pairing correlations are treated with the BCS model. In the calculations, two density functionals were used, namely, the PC-F1 and the DD-PC1. Both are based on relativistic point-coupling Lagrangians. It is explicitly shown that this model is capable of reproducing the giant- as well as the pygmy-dipole resonance for open-shell nuclei in a high level of quantitative agreement with the available experimental observations. © 2011 American Physical Society.
