Abstract
The ground-state rotational band of $^{173}\mathrm{Yb}$ has been investigated through multiple Coulomb excitation with a beam of 250-MeV $^{58}\mathrm{Ni}$. \ensuremath{\gamma}-ray branchings and E2/M1 mixing ratios were determined up to the ${(23/2}^{\mathrm{\ensuremath{-}}}$ state by measurements of \ensuremath{\gamma}-ray angular distributions and \ensuremath{\gamma}-\ensuremath{\gamma} angular correlations. Nuclear lifetimes of levels up to I=(25/2 have been measured using the Doppler-shift recoil-distance method. No significant signature dependence was observed for \ensuremath{\Delta}I=1 M1 and E2 transition probabilities. The data are analyzed in terms of the rotating shell model and the differences between spin-up and spin-down orbitals are discussed.
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