PMID: 11607181May 15, 1991Paper

Analysis of the energy of the first four excited states of the ground- state rotational bands of the even-even lanthanon nuclei (58Ce to 70Yb) with the model of a single cluster of nucleons revolving about a sphere

Proceedings of the National Academy of Sciences of the United States of America
L Pauling

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.

References

Feb 1, 1991·Proceedings of the National Academy of Sciences of the United States of America·L Pauling
Oct 1, 1965·Proceedings of the National Academy of Sciences of the United States of America·L Pauling
Nov 1, 1969·Proceedings of the National Academy of Sciences of the United States of America·L Pauling
Nov 1, 1982·Proceedings of the National Academy of Sciences of the United States of America·L Pauling

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