Study of shape coexistence in the Hg isotopes by (6) representation of eigenstates.

Autor: Sabri, H., Asadi, A. Ghale, Jabbarzade, O., Mobarake, S. K. Mousavi
Předmět:
Zdroj: International Journal of Modern Physics E: Nuclear Physics; Sep2017, Vol. 26 Issue 9, p-1, 21p
Abstrakt: In this paper, we have studied the shape coexistence in the Hg isotopes. The SO(6) representation of eigenstates and a transitional Hamiltonian in the Interacting Boson Model (IBM) are used to consider the evolution from prolate to oblate shapes for systems with total boson number . Parameter free (up to overall scale factors) predictions for energy spectra and quadrupole transition rates are found to be in good agreement with experimental counterparts. The results for the control parameter of transitional Hamiltonian offer a combination of spherical and deformed shapes in these Hg isotopes and also more deviation from SO(6) limit is observed when the quadrupole deformation is decreased. Also, there are some suggestions about the expectation values of the operator which are determined in the first state of ground, beta and gamma bounds and the control parameter of model. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index