On the existence of level-level correlations in nuclear reactions

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“…Large values of r I' are not infrequent and are preferentially asso 6. Level-level and channel-channel correlations exist between the quantities O�a and Ovb: <O�aO�b) i= 0 for a i= band <OliaOva) i= 0 for f.1 i= v. Sevgen (1974Sevgen ( , 1976 showed that <N Ii) > 1 is a necessary and sufficient condition for the existence of level-level correlations between g"a and gva'…”