In this paper, we present new analytical solutions of the Bohr Hamiltonian problem that we derived with the Tietz-Hua potential, here used for describing the { \beta}-part of the nuclear collective potential plus harmonic oscillator one for the { \gamma}-part. Also, we proceed to a systematic comparison of the numerical results obtained with this kind of { \beta}-potential with others which are widely used in such a framework as well as with the experiment. The calculations are carried out for energy spectra and electromagnetic transition probabilities for { \gamma}-unstable and axially symmetric deformed nuclei. In the same frame, we show the effect of the shape flatness of the { \beta}-potential beyond its minimum on transition rates calculations.
Categories: nucl-th