Nonrandom Distributions of Neutron Resonance Levels

抄録

Analysis of correlations between spacings of arbitrary pairs of neutron resonance levels for intermediate and heavy nuclei is described. It is found that pairs of levels separated at particular spacings appear very frequently and the observed levels are also preferentially distributed at periodical positions with particular periods. These correlations are found in the observed resonances of ⁷⁵As, ¹²¹Sb, ¹²³Sb, ¹⁴⁶Nd, ¹⁶⁶Er, ¹⁷⁴Yb, ¹⁷⁷Hf, ²³⁴U, ²⁴⁰Pu, etc.. It is shown that these regular level distributions are rarely expected for statistically distributed levels.