Configuration mixing of angular-momentum-projected triaxial relativistic mean-field wave functions

The framework of relativistic energy-density functionals is extended to include correlations related to the restoration of broken symmetries and to fluctuations of collective variables. The generator coordinate method is used to perform configuration mixing of angular-momentum-projected wave functions, generated by constrained self-consistent relativistic mean-field calculations for triaxial shapes. The effects of triaxial deformation and of $K$ mixing is illustrated in a study of spectroscopic properties of low-spin states in $^{24}\mathrm{Mg}$.