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首页> 美国卫生研究院文献>Proceedings of the National Academy of Sciences of the United States of America >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.
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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.

机译：用一个围绕球旋转的单个核子模型对偶偶镧系原子核（58Ce至70Yb）的基态旋转带的前四个激发态的能量进行分析。

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摘要

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.
机译：对82个原子核的基态旋转带的前四个激发能级（从58Ce到70Yb的七个偶-偶数镧系的同位素）的分析提供了每个原子团围绕一个球体的单个团簇的旋转半径的值。对于第一种激发态，在每种情况下中子数N = 82时，每个簇中的核子数m取为2，通常随着Z或N的变化+/- 2而增加2，但有时变化0或乘以4或更多。旋转半径R在N约78处减小到最小（约6.7 fm），在N约86处急剧上升，在N约96处达到最大值（约7.8 fm），然后减小。

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