Iso-scalar liquid drop model fitting experimental binding energies within the macro-micro approach*

Abstract A new liquid drop model with iso-scalar volume and surface energy terms is applied to reproduce experimentally known masses of nuclei with a number of protons and neutrons larger or equal to twenty. The ground-state microscopic energy corrections are considered. Although the model contains only six adjustable parameters in its macroscopic part, the quality of mass reproduction is high and comparable with other contemporary mass estimates. Additionally, the fission barrier heights of actinide nuclei evaluated using the topographical theorem of Myers and Świa̧tecki are close to the data.