Collective bands built on the proton h11/2 and the neutron h11/2 orbitals in odd-odd I

The excited states of the doubly-odd I-124, I-122, and I-120 nuclei have been studied by using in-beam gamma-ray spectroscopy with the Sn-122(Li-7,5n), the Sn-120 (Li-7,5n), and the Sn-118(Li-6,4n) reactions at E-lab = 54, 58, and 48 MeV, respectively. Beams, which were pulsed on I ns separated by 1.7 mus, were provided by the 14UD Pelletron accelerator at the Australian National University. In the present work, many collective bands with positive-parity as well as negative-parity have been newly identified and their excitation energies have been definitely established. The positive-parity collective bands built on the 10(+) state in these doubly odd I could be interpreted as being associated with the pih(11/2)nuh(11/2) configuration.