Abstract
The octupole vibrations of deformed nuclei are studied. A strong coupling between the harmonic octupole vibrations and the quadrupole ellipsoid is assumed. This interaction gives rise to a splitting of octupole bands with different projection quantum numberK.
TheE1-transitions of the octupole states are explained within the frame of the Dynamic Collective Theory ofDanos andGreiner by calculating the Coulomb interaction between octupole vibrations and giant resonances. Furthermore, theE2- andE3-transitions of the octupole states are studied. The spectrum of W182 is investigated in detail. A fair agreement between theory and experiment is obtained. Predictions for the octupole spectra of Sm152 and Gd156 are given.
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This work has been supported by the Deutsche Forschungsgemeinschaft with a contract for studies in nuclear structure.
We wish to thank Prof. N.Fiebiger for raising our interest in the structure of the octupole states, and for many helpful discussions. Further, we acknowledge discussions with D.Drechsel and, especially, for communicating the idea of computing the Coulomb-integrals via a Fourier-transformation.
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Donner, W., Greiner, W. Octupole vibrations of deformed nuclei. Z. Physik 197, 440–472 (1966). https://doi.org/10.1007/BF01325911
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DOI: https://doi.org/10.1007/BF01325911