Relativistic Hartree calculations of nuclear compressional properties

Using the scaling model, we calculate within the framework of relativistic Hartree theory the nuclear breathing-model energies corresponding to the NL1 and NL-SH parameter sets of the nonlinear σ-ω-ρ model. Both of these sets are found to be in disagreement with experiment and there is a clear need for an improved fit. However, as far as the nuclear-matter incompressibility ${\mathit{K}}_{\mathit{v}}$ is concerned, neither the NL1 value, 212 MeV, nor the NL-SH value, 356 MeV, can be excluded.