Abstract
An investigation of the Davydov-Chaban Hamiltonian with Kratzer potential for the variable β and γ fixed to π/6, is performed by taking into account a deformation-dependent mass term. The energies and wave functions of the eigenvalue problem are obtained in compact form by using the asymptotic iteration method. The numerical results of the energy spectrum and the electric quadrupole transition ratios are calculated and compared with the experimental data for 128,130,132Xe and 192,194,196Pt nuclei as well as other theoretical models. In this way, it is highlighted the importance had by the effect of the shape flatness of the Kratzer potential and the deformation dependent mass term on the numerical predictions in relation to the experimental data.
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