IN-BEAM SPECTROSCOPY OF TE-110

The neutron-deficient nucleus Te-110 has been investigated by in-beam spectroscopic methods using the NORDBALL multi-detector array. Except for the energy of one level observed in alpha-decay, excited states in Te-110 were previously unknown. The level scheme constructed from gam ma gamma-coincidence relationships is presented with tentative spin as signments up to I-pi = 21(-). Above spin 8(+) the yrast states have ne gative parity. They are most likely the members of a band predominantl y based on the nu(h(11/2)g(7/2)) two-quasiparticle configuration. A ba nd crossing is observed at I-pi approximate to 17(-). It is suggested to be caused by the alignment of two h(11/2) neutrons. The cranked she ll model correctly predicts the spin alignment, but fails to reproduce the observed band crossing frequency, possibly because of octupole ef fects.