Nuclear Ground-State Masses and Deformations

Autor: Peter Möller, W.D. Myers, W.J. Swiatecki, J. R. Nix
Rok vydání: 1995
Předmět:
Zdroj: Atomic Data and Nuclear Data Tables. 59:185-381
ISSN: 0092-640X
DOI: 10.1006/adnd.1995.1002
Popis: We tabulate the atomic mass excesses and nuclear ground-state deformations of 8979 nuclei ranging from $^{16}$O 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 9 constants are determined directly from a least-squares adjustment to the ground-state masses of 1654 nuclei ranging from $^{16}$O to $^{263}$106 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 above $N=65$.
50 pages plus 20 PostScript figures and 160-page table obtainable by anonymous ftp from t2.lanl.gov in directory masses, LA-UR-93-3083
Databáze: OpenAIRE