Weak and strong signature splitting in doubly-odd 132Pr

An investigation of the collective structures in the doubly-odd nucleus 132Pr has been undertaken with the 117Sn(19F,4n)132Pr reaction. Two distinct rotational structures showing both signature components have been established. One band, with no signature splitting, is built on a near-prolate πh112xνg72 structure. The second band, with a small signature splitting, involves the πh112xνh112 configuration with a triaxial shape. A comparison with recent results for the 130La isotone has been made. A third band structure of large signature splitting (doubly decoupled) was observed showing only one signature component. This band structure is believed to involve the β-driving νi132[660](12+ orbital