IBA-2 model calculation on even mass tellurium isotopes compared with results of recent nuclear orientation experiments

Calculations using the IBA-2 model code are presented for even-even tellurium isotopes 118Te to 124Te. Three parameter sets are used, two from previous work and a third chosen to give optimum fit to experimental positive parity energy levels and B(E2) ratios. With only two additional parameters, each with simple physical interpretation, the three parameter sets are shown to give excellent fits to the known collective negative parity states in these isotopes. Failure to fit the 02+, 03+ and 23+ levels suggests these may be 4p-2h intruder states although their behaviour with varying neutron number is not as clearly characteristic of such configuration as is found for the 2p-4h states in Cd isotopes. (Auth.)