Summary
The number of valence bosons in the interacting boson model is estimated on the basis of BCS occupation probabilities of levels generated by a Nilsson potential for 28<Z<82 and 50<N<126; special emphasis is put on the role of deformed-shell closures.
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Maino, G., Ventura, A. NBCS approach to the effective boson number in the interacting boson model. Lett. Nuovo Cimento 39, 89–95 (1984). https://doi.org/10.1007/BF02787245
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DOI: https://doi.org/10.1007/BF02787245