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On-line version ISSN 2075-5635


VARGAS MADRAZO, Carlos E.; VELAZQUEZ AGUILAR, Víctor M.  and  MENDOZA TEMIS, Joel. Microscopic description of low-lying properties in 168≤A≤170 Yb nuclei by the pseudo-SU(3) shell model. Nucleus [online]. 2018, n.63, pp. 6-8. ISSN 2075-5635.

The rare-earth nuclei have well-known collective properties. The theoretical description of these nuclei represents a challenge to nuclear models, due to the enormous dimensions of the valence space, making the problem unmanageable. This leads us to use symmetry-based models, where it is possible to calculate in a free-truncation environment. In this work we present results for the energy spectrum and the electromagnetic properties in even-even Yb isotopes using the pseudo-SU(3) shell model. The model considers a Nilsson Hamiltonian that additionally includes the quadrupole-quadrupole and pairing interactions, systematically parameterized. The results show that the model considered is a powerful theoretical tool, allowing us to describe the normal parity sector of deformed rare earth nuclei.

Keywords : atomic models; rare earth nuclei; SU-3 groups; electrical properties; magnetic properties; ytterbium; energy spectra.

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