Multiphonon structure of high-spin states in \(^{40}\)Ca, \(^{90}\)Zr, and \(^{208}\)Pb

Multiphonon structure of high-spin states in \(^{40}\)Ca, \(^{90}\)Zr, and \(^{208}\)Pb

The method of description of the high-spin states, which was previously developed and applied for the states of this type in \(^{208}\)Pb, is generalized for the case of the states having more complex multiphonon structure. In this method, the harmonic approximation with the renormalized phonons is...

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Veröffentlicht in:arXiv.org 2023-01
Hauptverfasser: Lyutorovich, N, Tselyaev, V
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Approximation
Mathematical analysis
Phonons
Physics - Nuclear Theory
Zirconium
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description The method of description of the high-spin states, which was previously developed and applied for the states of this type in \(^{208}\)Pb, is generalized for the case of the states having more complex multiphonon structure. In this method, the harmonic approximation with the renormalized phonons is used in which the phonons themselves are determined within the non-linear version of the model based on the random-phase approximation (RPA) and including both the RPA correlations and the beyond-RPA ones. The mean field and the residual interaction are derived within the framework of the self-consistent RPA from the energy-density functional of the Skyrme type. The method is applied for the analysis of the available experimental data in doubly magic \(^{208}\)Pb and \(^{40}\)Ca and in semi-magic \(^{90}\)Zr.
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subjects Approximation
Mathematical analysis
Phonons
Physics - Nuclear Theory
Zirconium
title Multiphonon structure of high-spin states in \(^{40}\)Ca, \(^{90}\)Zr, and \(^{208}\)Pb
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