Quadrupole collective dynamics from energy density functionals: Collective Hamiltonian and the interacting boson model

K. Nomura, T. Nikšić, T. Otsuka, N. Shimizu, D. Vretenar

doi:10.48550/arxiv.1104.4667

Microscopic energy density functionals (EDF) have become a standard tool for nuclear structure calculations, providing an accurate global description of nuclear ground states and collective excitations. For spectroscopic applications this framework has to be extended to account for collective correlations related to restoration of symmetries broken by the static mean field, and for fluctuations of collective variables. In this work we compare two approaches to five-dimensional quadrupole dynamics: the collective Hamiltonian for quadrupole vibrations and rotations, and the Interacting Boson Model. The two models are compared in a study of the evolution of non-axial shapes in Pt isotopes. Starting from the binding energy surfaces of $^{192,194,196}$Pt, calculated with a microscopic energy density functional, we analyze the resulting low-energy collective spectra obtained from the collective Hamiltonian, and the corresponding IBM-2 Hamiltonian. The calculated excitation spectra and transition probabilities for the ground-state bands and the $��$-vibration bands are compared to the corresponding sequences of experimental states.

10 pages, 4 figures; to be published in Phys. Rev. C

Quadrupole collective dynamics from energy density functionals: Collective Hamiltonian and the interacting boson model

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Quadrupole collective dynamics from energy density functionals: Collective Hamiltonian and the interacting boson model

書誌事項

この論文をさがす

説明

収録刊行物

参考文献 (52)*注記

関連プロジェクト

キーワード

詳細情報 詳細情報について

書き出し

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