Transitional nuclei: 150 Sm for the decay of 150 Pm

Gamma-gamma directional correlation techniques employing a Ge(li)-NaI(Tl) system were used to investigate the de-excitation mechanism and character of several states in 150Sm, following the decay of 150Pm. Spins of certain levels and multipole mixing ratios of transitions from the quadrupole and octupole quasi-vibrational bands were determined. The experimental mixing ratio values are compared with theoretical prediction and with corresponding values in neighbouring nuclei.