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arXiv · 0806.2813

Self-consistent calculations within the Green's function method including particle-phonon coupling and the single-particle continuum

N. Lyutorovich·J. Speth·A. Avdeenkov·F. Gruemmer·S. Kamerdzhiev·S. Krewald·V. I. Tselyaev
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Abstract

The Green's function method in the \emph{Quasiparticle Time Blocking Approximation} is applied to nuclear excitations in $^{132}$Sn and $^{208}$Pb. The calculations are performed self-consistently using a Skyrme interaction. The method combines the conventional RPA with an exact single-particle continuum treatment and considers in a consistent way the particle-phonon coupling. We reproduce not only the experimental values of low- and high-lying collective states but we also obtain fair agreement with the data of non-collective low-lying states that are strongly influenced by the particle-phonon coupling.

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N. Lyutorovich, J. Speth, A. Avdeenkov, F. Gruemmer, S. Kamerdzhiev, S. Krewald, V. I. Tselyaev. 2008-06-17. Self-consistent calculations within the Green's function method including particle-phonon coupling and the single-particle continuum. https://doi.org/10.1140/epja/i2008-10638-x

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