Resonance-Fluorescence Studies. II.Sb121andSb123

Resonant scattering of bremsstrahlung was used to measure the scattering widths $\frac{\mathrm{gW}{\Gamma }_0{\Gamma }_i}{\Gamma }$ for 43 transitions in the antimony isotopes ${}_{}{}^{121,123}{}_{}{}^{}\mathrm{Sb}$ between 0.5 and 2.5 MeV. Absorption measurements determined $g{\Gamma }_0$ in seven cases. Comparison of the scattering widths with the $B\left(E2\mathrm{}\right)\mathrm{}$ values from Coulomb excitation gave the mixing ratios in five cases. The theoretical level schemes and $B\left(E2\mathrm{}\right)\mathrm{}$ calculations using the unified model up to second order in the collective variable had some success in explaining the experimental results.