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Author Mozer, F. S.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ ATOMS ♦ DEFORMATION ♦ ELECTRIC POTENTIAL ♦ ENERGY ♦ EQUATIONS ♦ ERRORS ♦ INTERACTIONS ♦ ISOSPIN ♦ MASS ♦ NUCLEAR MODELS ♦ NUCLEI ♦ STANDARDS ♦ SURFACES
Abstract Least-squares analyses were performed on a set of atomic masses using standard and generalized senaiempirical mass laws. Presumably because of errors in the assured form of the standand mass law, its least-squares coefficients can be determined at best to an accuracy of about 10%, and masses are predicted with an uncertainty of several Mev/c/sup 2/. The standard mass law was generalized by addition of shell effect and deformation terms. While the least-squares fitting of the generalized mass law is better than for the standard mass law, it is still not possible to predict atomic masses to an accuracy better than a few Mev/c/sup 2/. The nuclear deformations and the well depth . of the nuclear interaction obtained from the additional mass-law terms are in reasonable agreement with more accurate determinations by other methods. A similar statement applies to the nuclear radius constant as obtained from the least-squares coefficient of the Coulomb energy term. A study was made of the effects of additional terms proportional to the absolute value of the isotopic spin, exchange and surface corrections to the Coulomb energy, and the surface correction to the normal isotopic term. (auth)
ISSN 0031899X
Educational Use Research
Learning Resource Type Article
Publisher Date 1959-11-15
Publisher Department California Inst. of Tech., Pasadena ♦ and Lockheed Missiles and Space Div., Palo Alto, Calif.
Journal Physical Review
Volume Number 116
Organization California Inst. of Tech., Pasadena ♦ and Lockheed Missiles and Space Div., Palo Alto, Calif.


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