Nuclear $β$- and $γ$- Collective Bands in the SU$_q$(2) Rotator Model

Details Nuclear $β$- and $γ$- Collective Bands in the SU$_q$(2) Rotator Model Nuclear $β$- and $γ$- Collective Bands in the SU$_q$(2) Rotator Model

1996-05-09

arxiv.org/abs/nucl-th/9605013v1

Collective Motion and Nuclear Dynamics, ed. A. A. Raduta, D. S. Delion, and I. I. Ursu (World Scientific, Singapore, 1996) p.

Physics

Nuclear Physics

Nuclear Theory

Plain TeX, 10 pages, 3 figures available upon request from the Authors. To appear in the Proceedings of the International Summ

Scientific paper

The SU$_q$(2) rotator model is used for describing the $\beta_1$- and $\gamma_1$-bands of even-even rare earth and actinide collective nuclei. Good results are obtained in nuclei with valence pair number $N>10$. It is shown that in the excited bands the violation of the exact SU(2) symmetry is generally stronger than in the ground state bands, indicating the presence of a nonadiabatic perturbation caused by the excited vibrational degrees of freedom. The physical content of the parameter $q$ is discussed. Predictions of the SU$_q$(2) model for B(E2) intraband transitions in excited bands are presented and the need for specific experimental data is pointed out.

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