The chiral doublet bands with three-quasiparticle configuration (πg 9/2) 1 (νh 11/2) 2 are studied by the fully quantal triaxial particle rotor model.The energy spectra and B(M1)/B(E2) ratios of the doublet bands with different triaxiality parameter γ are systemati-cally analyzed.It is found that γ is a sensitive parameter for the properties of these doublet bands.
