Shape Coexistence in 74Se

The 0_1,2⁺,2_1,2⁺ and 4_1,2⁺ states in ⁷⁴Se have been described as linear combinations of pure states with definite deformation within a two-band mixing model. The mixing amplitudes between the spherical and deformed configurations and the mixing matrix elements have then been extracted from the calculations. The exchanged position between the spherical and deformed configurations at I=4 has been obtained within this model.