Aligned νi13 2 bands coupled to different shapes in 186Hg

The structure of 186Hg has been studied through the 156Gd(34S, 4n) reaction. Three bands with even spin and parity are observed; two of them are established up to high spin and are found to cross with little interaction at I= 16+. Cranked shell model calculations suggest that these two bands can be associated with a decoupled νi13 2 pair based on a prolate and on an oblate or triaxial shape, respectively