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Random-phase approximation based on relativistic point-coupling models
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DOI：10.1103/PhysRevC.72.014312.png)
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摘要
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The matrix equations of the random-phase approximation (RPA) are derived for the point-coupling Lagrangian of the relativistic mean-field (RMF) model. Fully consistent RMF plus (quasiparticle) RPA illustrative calculations of the isoscalar monopole, isovector dipole, and isoscalar quadrupole response of spherical medium-heavy and heavy nuclei test the phenomenological effective interactions of the point-coupling RMF model. A comparison with experiment shows that the best point-coupling effective interactions accurately reproduce not only ground-state properties but also data on excitation energies of giant resonances.
Keyword:
MEAN-FIELD MODELS
GIANT-DIPOLE RESONANCE
NUCLEAR-MATTER
FINITE NUCLEI
CHIRAL-SYMMETRY
DENSITY
QCD
COMPRESSIBILITY
SURFACE
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期刊
IF:
3.4
论文数:
2.9W
被引数:
5.7W
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