Abstract
Analysis of the first four excited energy levels of the ground-state rotational bands of 82 nuclei (isotopes of the seven even-even lanthanons from 58Ce to 70Yb) has provided values of the radius of revolution of a single cluster about a sphere in each nucleus. The number of nucleons m in each cluster is taken to be 2 for neutron number N = 82 in each case for the first excited state, usually increasing by 2 with change in Z or N by +/-2, but sometimes changing by 0 or by 4 or more. The radius of revolution R decreases to a minimum (about 6.7 fm) at N approximately 78, rises sharply at N approximately 86, reaches a maximum (about 7.8 fm) at N approximately 96, and then decreases.
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Selected References
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- Pauling L. Changes in the structure of nuclei between the magic neutron numbers 50 and 82 as indicated by a rotating-cluster analysis of the energy values of the first 2 excited states of isotopes of cadmium, tin, and tellurium. Proc Natl Acad Sci U S A. 1981 Sep;78(9):5296–5298. doi: 10.1073/pnas.78.9.5296. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pauling L. Orbiting clusters in atomic nuclei. Proc Natl Acad Sci U S A. 1969 Nov;64(3):807–809. doi: 10.1073/pnas.64.3.807. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pauling L. Regularities in the sequences of the number of nucleons in the revolving clusters for the ground-state energy bands of the even-even nuclei with neutron number equal to or greater than 126. Proc Natl Acad Sci U S A. 1990 Jun;87(12):4435–4438. doi: 10.1073/pnas.87.12.4435. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pauling L. Rules governing the composition of revolving clusters in quasiband and prolate-deformation states of atomic nuclei. Proc Natl Acad Sci U S A. 1982 Nov;79(22):7073–7075. doi: 10.1073/pnas.79.22.7073. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pauling L. THE CLOSE-PACKED-SPHERON MODEL OF ATOMIC NUCLEI AND ITS RELATION TO THE SHELL MODEL. Proc Natl Acad Sci U S A. 1965 Oct;54(4):989–994. doi: 10.1073/pnas.54.4.989. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Pauling L. The Close-Packed-Spheron Theory and Nuclear Fission. Science. 1965 Oct 15;150(3694):297–305. doi: 10.1126/science.150.3694.297. [DOI] [PubMed] [Google Scholar]
- Pauling L. Transition from one revolving cluster to two revolving clusters in the ground-state rotational bands of nuclei in the lanthanon region. Proc Natl Acad Sci U S A. 1991 Feb 1;88(3):820–823. doi: 10.1073/pnas.88.3.820. [DOI] [PMC free article] [PubMed] [Google Scholar]