DEFORMED INTRUDER BAND IN TE-112 - 1ST EVIDENCE FOR ROTATIONAL BEHAVIOR IN THE TELLURIUM ISOTOPES

States in the neutron-deficient Te-110,Te-112 isotopes have been popul ated following Ni-58 + Ni-58, Ni-60 reactions. Gamma-ray coincidence d ata were acquired with the Eurogam spectrometer in conjunction with th e Daresbury recoil separator and with the Chalk River 8pi spectrometer . Although the low-lying yrast states are not collective in these nucl ei, a long regular cascade of transitions, indicating collective behav ior, was found in Te-112 extending to high spin. This structure is int erpreted in terms of a deformed 4-particle 2-hole 0(2+) state coupled to rotationally aligned quasiparticles, and represents the first examp le of a rotational ''intruder'' band in the tellurium isotopes.