Quadrupole moments of normal deformed and triaxial strongly deformed bands in $^{167}$Lu

$^{167}$Lu is the heaviest Lu isotope in which wobbling motion, a characteristic excitation mode of triaxial structures, has been identified [1,2]. In order to further quantify the quadrupole moments (Q$_{t}$) of these structures, lifetime measurements were performed at ANL using fusion-evaporation reaction and GAMMASPHERE. Previously, the Q$_{t}$ of TSD1 was analyzed [3]. In this work, the $\gamma$-ray lineshapes were analyzed with the Doppler-shift attenuation method and Q$_{t}$ extracted for bands TSD3, [404]7/2$^{+}$ and [541]1/2$^{-}$. The measured Q$_{t}$ of TSD3 is much smaller than the predicted Q$_{t}$=10.1 eb by CSM calculations using the Ultimate Cranker code, and supports the suggestion that the barrier between normal deformed and TSD potential energy minima is rather small [2]. ~*Work supported by US DOE and NSF.\\ $^{1}$ H. Amro et al., Phys. Lett. B 553, 197 (2003).\\ $^{2}$ H. Amro et al., Phys. Rev. C 71, 011302 (2005).\\ $^{3}$ G. G"urdal et al., J. Phys. G 31, S1873 (2005).