Anharmonic double-$γ$ vibrations in nuclei and their description in the interacting boson model

Details Anharmonic double-$γ$ vibrations in nuclei and their description in the interacting boson model Anharmonic double-$γ$ vibrations in nuclei and their description in the interacting boson model

1998-07-31

arxiv.org/abs/nucl-th/9807083v2

Phys.Rev. C61 (2000) 047305

Physics

Nuclear Physics

Nuclear Theory

10 pages, LaTeX (ReVTeX). 3 ps figures. Accepted in Phys. Rev. C

Scientific paper

10.1103/PhysRevC.61.047305

Double-$\gamma$ vibrations in deformed nuclei are studied in the context of the interacting boson model with special reference to their anharmonic character. It is shown that large anharmonicities can be obtained with interactions that are (at least) of three-body nature between the bosons. As an example the $\gamma$ vibrations of the nucleus $^{166}_{\phantom{0}68}$Er$^{\phantom{00}}_{98}$ are studied in detail.

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