Nuclear Ground-State Masses and Deformations

Peter Möller and James Rayford Nix
Theoretical Division, Los Alamos National Laboratory, New Mexico 87545, USA

W. D. Myers and W. J. Swiatecki
Nuclear Science Division, Lawrence Berkeley Laboratory, Berkeley, CA 94720


We tabulate the atomic mass excesses and nuclear ground-state deformations of 8979 nuclei ranging from 16O to A=339. The calculations are based on the finite-range droplet macroscopic model and the folded-Yukawa single-particle microscopic model. Relative to our 1981 mass table the current results are obtained with an improved macroscopic model, an improved pairing model with a new form for the effective-interaction pairing gap, and minimization of the ground-state energy with respect to additional shape degrees of freedom. The values of only nine constants are determined directly from a least-squares adjustment to the ground-state masses of 1654 nuclei ranging from 16O to 263106 and to 28 fission-barrier heights. The error of the mass model is 0.669 MeV for the entire region of nuclei considered, but is only 0.448 MeV for the region N > 64.
A complete set of files associated with this manuscript are available for download.
A more interactive access to the data is also available. At this site individual columns, that is particular data sets, from the publication can be accessed as easy-to-read ascii files. Also, data for a specific nucleus can be requested.

Page by Robert MacFarlane and Peter Möller,
created 1993 last modified 5 July 2012