We investigate ground-state properties of the superheavy nucleus with N=184 and Z=114, ${}_{}{}^{298}{}_{}{}^{}114$, using conventional relativistic mean-field theory and density-dependent mean-field theory, which reproduces Dirac-Brueckner calculations in nuclear matter. Our calculations provide support for N=184 and Z=114 being magic numbers. Density-dependent mean-field theory does not predict ${}_{}{}^{298}{}_{}{}^{}114$ to be stable against β decay.

• Received 19 January 1993

DOI:https://doi.org/10.1103/PhysRevC.48.472