Statistical Analysis of P-Wave Neutron Reduced Widths
キーワード:
Γ n1 distribution,
determined degree of freedom `ν',
explained deviation from ν=1,
intermediate structure
2000 年 69 巻 2 号 p. 373-377
詳細
2000 年 69 巻 2 号 p. 373-377
The fluctuations of the p-wave neutron reduced widths for fifty one nuclei have been analyzed with emphasis on recent measurements by a statistical procedure which is based on the method of maximum likelihood. It is shown that the p-wave neutron reduced widths of even-even nuclei follow single channel Porter Thomas distribution (χ2-distribution with degree of freedom ν =1) for most of the cases where there are no intermediate structure. It is emphasized that the distribution in nuclei other than even-even may differ from a χ2-distribution with one degree of freedom. Possible explanation and significance of this deviation from ν=1 is given.
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