E0 Transitions in ¹¹²Cd and ¹⁰⁶Pd

Abstract

The E0 transitions from the first 0₁⁺ state to the ground state of ¹¹²Cd and ¹⁰⁶Pd have been found from the internal conversion electron study of the decay of ¹¹²In and ¹⁰⁶Rh with Si(Li) detectors. The strong β⁺-rays from the decay of ¹¹²In were suppressed by a mini-orange magnetic filter. Also, an X-ray-e⁻ coincidence system was employed for the β⁻-decay of ¹⁰⁶Rh. The values of X(E0/E2)=B(E0, 0₁⁺→0_g⁺)/B(E2, 0₁⁺→2₁⁺) are obtained; X(E0/E2)=0.033±0.004 for ¹¹²Cd and 0.0181±0.0014 for ¹⁰⁶Pd. The values are compared with the prediction of current theoretical calculations.