Nuclear-Orientation Study of the Decay ofSb125

The decay of ${}_{}{}^{125}{}_{}{}^{}\mathrm{Sb}$ to levels of ${}_{}{}^{125}{}_{}{}^{}\mathrm{Te}$ has been investigated using low-temperature nuclear orientation achieved by dilution refrigeration and adiabatic demagnetization. Angular distributions of eight $\gamma$ rays were observed using Ge(Li) detectors. The values of the $\frac{E2\mathrm{}}{M1\mathrm{}}$ $\gamma$-transition multipole mixing ratios deduced were (energies in keV): $\delta \mathrm{}\left(636\right)={+0.341\mathrm{}}_{-0.006\mathrm{}}^{+0.005\mathrm{}}$; $\delta \mathrm{}\left(428\right)=-0.542\mathrm{}\pm 0.016$; $-1.7\mathrm{}\le \delta \mathrm{}\left(177\right)\mathrm{}\le -0.5\mathrm{}$. In addition, mixing amplitudes of angular momentum components in the $\beta$-radiation fields were extracted.