期刊
INTERNATIONAL JOURNAL OF MASS SPECTROMETRY
卷 349, 期 -, 页码 19-25出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijms.2013.04.008
关键词
Nuclear mass; Fission barrier
资金
- National Nuclear Security Administration of the U.S. Department of Energy at Los Alamos National Laboratory [DE-AC52-06NA25396]
The liquid-drop model has its origins in the first mainstream model of the binding energy of nuclei, sometimes referred to as the semiempirical mass formula, which emerged in the mid 1930s. It is a beautiful example of a model that fulfills the criteria of what a theoretical model is and what an arbitrary parameterization of some data set is not: (1) it has a simple intuitive interpretation, (2) it was of enormous and immediate practical utility in interpreting nuclear experimental data such as radioactive decay and nuclear reactions, (3) it could predict binding energies of nuclei to which its parameters had not been adjusted, (4) it could be generalized to describe new, unanticipated phenomena such as fission, and (5) deviations of its predictions from experimental data yielded insight into nuclear structure and guided the development of more sophisticated models. Generalized liquid-drop models remain important because of the development of macroscopic-microscopic models which give important quantitative insight into ground-state structure and binding energies (nuclear masses) and many details of nuclear fission. We review these points and some associated historical milestones. (c) 2013 Elsevier B.V. All rights reserved.
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