Search for Collective Effects in Very High Spin States ofDy152

Theoretical calculations based on the rotating Woods-Saxon potential with optimized parameters indicate appearance of the superdeformed shapes with ${\beta }_2=0.6\mathrm{}$ already at $I\approx 52$ and simultaneously the triaxial-configuration minimum ($\gamma \approx 30°$) with ${\beta }_2\approx 0.3$. Two values of the moments of inertia viz. $2{\mathcal{I}}^{\mathrm{}\left(2\right)\mathrm{}}\approx \left(167\mathrm{} \mathrm{and} 125\right){\hslash }^2$ Me${\mathrm{V}}^{-1\mathrm{}}$ were deduced from our $E_{\gamma }-E_{\gamma }$ correlation measurement.