Shape coexistence and band crossings inPt174

High-spin states in $^{174}\mathrm{Pt}$ were populated via the $^{92}\mathrm{Mo}(^{84}\mathrm{Sr},2p)$ and $^{92}\mathrm{Mo}(^{84}\mathrm{Sr},2p2n)$ reactions. The ground-state band has been extended from $I=14$ to 24 (tentatively 26) and a new side band is observed up to a spin of 21 (tentatively 23). A low-frequency crossing is observed in the latter band at a rotational frequency that is similar to that seen in the ground-state band. The first and second ${i}_{13∕2}$ neutron alignments are also observed in $^{174}\mathrm{Pt}$. Surprisingly, these crossings occur at approximately the same frequency. Total Routhian surface and cranked shell model calculations are used in an attempt to understand this behavior.