Elsevier

Nuclear Physics A

Volume 345, Issue 1, 18 August 1980, Pages 72-92
Nuclear Physics A

Energies and electromagnetic moments of deformed nuclei in the rare-earth region☆

https://doi.org/10.1016/0375-9474(80)90412-1Get rights and content

Abstract

Strutinsky-type cranking calculations with inclusion of pairing correlations have been performed for the rare-earth nuclei 156, 158, 164Dy and 164Er. The pairing effects contribute significantly and with their inclusion the calculated yrast spectra agree very well with experiments. Using Hartree-Fock-Bogouliubov cranking wave functions we have calculated the magnetic moments and quadrupole moments for states up to spin I = 20h̵. The quadrupole moments are found to be constant over the whole spin range. The gyromagnetic factors g(I) show a strong I-dependence for 156, l58Dy, a weaker one for 164Er and none for 164Dy. The sensitivity of this spin dependence on the single-particle occupation and the pairing degrees of freedom is studied. It is found that the spin variation of the gyrofactors is a rotational alignment effect.

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    ☆

    Work supported by GSI Darmstadt and Bundesministerium für Forschung und Technologie.

    †

    Fellow of the Alexander von Humboldt Foundation. Permanent address: Department of Physics, Banaras Hindu University, Varanasi-221005, India.

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