Charge and transition densities of samarium isotopes in the interacting boson modei

M. A. Moinester*, J. Alster, G. Azuelos, A. E.L. Dieperink

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Scopus citations


The interacting boson approximation (IBA) model has been used to interpret the ground-state charge distributions and lowest 2+ transition charge densities of the even samarium isotopes for A = 144-154. Phenomenological boson transition densities associated with the nucleons comprising the s- and d-bosons of the IBA were determined via a least squares fit analysis of charge and transition densities in the Sm isotopes. The application of these boson transition densities to higher excited 0+ and 2+ states of Sm, and to 0+ and 2+ transitions in neighboring nuclei, such as Nd and Gd, is described. IBA predictions for the transition densities of the three lowest 2+ levels of 154Gd are given and compared to theoretical transition densities based on Hartree-Fock calculations. The deduced quadrupole boson transition densities are in fair agreement with densities derived previously from 150Nd data. It is also shown how certain moments of the best fit boson transition densities can simply and successfully describe rms radii, isomer shifts, B(E2) strengths, and transition radii for the Sm isotopes.

Original languageEnglish
Pages (from-to)264-284
Number of pages21
JournalNuclear Physics A
Issue number2
StatePublished - 26 Jul 1982


FundersFunder number
United States-Israel Binational Science Foundation


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