Theoretical Study on the Rotational Bands and Shape Coexistence of ^179,181,183Au in the Particle--Triaxial-Rotor Model

We perform a series of theoretical calculations and investigation for nuclei ^179,181,183Au in the
particle--triaxial-rotor model with variable moment of inertia. The calculated energy spectra in ^179,181,183Au agree well with the experimental data globally. The obtained results indicate that the nuclei ^179,181,183Au have prolate deformation and involve shape coexistence with different deformation parameters in different bands. The main configuration of bands 1, 2, 3 and 5 in these nuclei are identified as 5411/2^- (π h_9/2, α=1/2), 5411/2^- (π h_9/2, α=-1/2), 5301/2^- (π f_7/2) and 6601/2⁺ (π i_13/2), respectively.