THE BAND-STRUCTURE OF SB-112

High-spin states of the doubly-odd Sb-112 were studied by in-beam spec troscopy using the Sr-88 (Si-28, p3n) and the Y-89 (Si-29, alpha 2n) f usion-evaporation reactions at beam energies of 120 and 108 MeV, respe ctively. gamma-gamma, charged particle-gamma-gamma coincidences, and g amma-gamma angular correlation analyses were employed for determining the level scheme of Sb-112. We observed two Delta I=1 strongly coupled rotational bands; one was a negative parity band and the other was a positive parity band. Their rotational properties showed a resemblance with those of the rotational bands built on 9/2(+) 2p-1h states in th e adjacent odd-mass Sb nuclei. From this observation and the CSM calcu lations, we suggest that these bands should be attributed to the coupl ing of a neutron to the rotating odd Sb core.