Low energy 0+ excitations in 158Gd

Details Low energy 0+ excitations in 158Gd Low energy 0+ excitations in 158Gd

2005-05-18

arxiv.org/abs/nucl-th/0505056v1

Physics

Nuclear Physics

Nuclear Theory

8 pages, 2 figures, Proc. XXVIII Nuclear Physics Symposium, Cocoyoc, Mexico, January 6-9 2005, to appear in Rev. Mex. Fis

Scientific paper

High precision (p,t) studies of the deformed nucleus 158Gd allowed the observation of 13 excited 0+ states below an excitation energy of 3.1 MeV. This high density of low energy states, and particularly their measured B(E2) transition strengths to the first excited 2+ state challenge nuclear models. The pseudo SU(3) model, which successfully describes many excited bands in Dy isotopes, is used to analyze this nuclei. We have fairly good reproduction of most of the states but the absence of actively including nucleons occupying intruders orbits may be the reason for the observed limitations of the model.

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