Search for Ring-Like Nuclei under Extreme Conditions

The potential energy surfaces of ²⁴Mg are studied within the adiabatic and diabatic constrained relativistic mean field approaches. The possible ring−like states are searched by analyzing the density distribution. It is found that in ²⁴Mg the ring−like states are energetically favored at the extreme oblate condition |β₂| ≥1.54 and a ring−like minimum is obtained with excitation energy E_x=49.42 MeV and quadrupole deformation β₂=−0.93.