Quadrupole Moments of Collective Structures up to Spin $\sim$ $65\hslash$ in ${}^{157}$Er and ${}^{158}$Er: A Challenge for Understanding Triaxiality in Nuclei

X. Wang, M. A. Riley, J. Simpson +21

The transition quadrupole moments, $Q_{\mathrm{t}}$, of four weakly populated collective bands up to spin $\sim$ $65\hslash$ in ${}^{157,158}$Er have been measured to be $\sim 11\mathrm{eb}$…