High-spin structure and electromagnetic transition strengths in ${}^{104}\mathrm{Cd}$

The recoil-distance Doppler-shift and Doppler-shift attenuation techniques were employed to determine for the first time lifetimes of high-spin states in ${}^{104}\mathrm{Cd}$ in the time range $0.3\hspace{0.5em}\mathrm{ps}<~\tau <~1.2\hspace{0.5em}\mathrm{ns}.$ The nuclei were populated using the compound nucleus reaction ${}^{58}\mathrm{Ni}{(}^{50}\mathrm{Cr},\hspace{0.5em}4p)$ and the γ radiation from their decay was detected with the GASP spectrometer. A total of 34 reduced transition probabilities and limits for 18 further transitions were extracted providing a rich basis for a comparison with theoretical calculations. In addition, the lifetime data contained new information urging for a revision of the published level scheme of ${}^{104}\mathrm{Cd}.$ In particular, a magnetic dipole band recently established and interpreted as magnetic rotation is shown to be not existing. The new experimental results in ${}^{104}\mathrm{Cd}$ are discussed in the frame of the interacting boson plus broken pair model.