Coulomb excitation ofSm152andDy162byO16

Coulomb excitation experiments on ${}_{}{}^{152}{}_{}{}^{}\mathrm{Sm}$ and ${}_{}{}^{162}{}_{}{}^{}\mathrm{Dy}$ by 48 MeV ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ particles were performed at 110, 120, and 140° with 50 keV energy resolution. The $B(E2,2^{+}\to 4^{+})$ and the reduced $E2\mathrm{}$ matrix element $〈4^{+}\parallel \mathfrak{M}\mathrm{}\left(E2\mathrm{}\right)\mathrm{}\parallel 4^{+}〉$ were deduced from the excitation probabilities by using the quantum-mechanical coupled-channels code AROSA. The results are: $B(E2,2^{+}\to 4^{+})=1.87\mathrm{}\pm 0.13 e^2{\mathrm{b}}^2$ $〈4^{+}\parallel \mathfrak{M}\mathrm{}\left(E2\mathrm{}\right)\mathrm{}\parallel 4^{+}〉=-3.4\mathrm{}\pm 1.9 e\mathrm{b}$ for ${}_{}{}^{152}{}_{}{}^{}\mathrm{Sm}$, and for ${}_{}{}^{162}{}_{}{}^{}\mathrm{Dy}$ $B(E2,2^{+}\to 4^{+})=2.93\mathrm{}\pm 0.20 e^2{\mathrm{b}}^2$, $〈4^{+}\parallel \mathfrak{M}\mathrm{}\left(E2\mathrm{}\right)\mathrm{}\parallel 4^{+}〉=-5.5\mathrm{}\pm 3.6 e\mathrm{b}$. These values agree with the rigid rotator relation within the experimental uncertainties.