Fluctuations in nuclear reaction cross-sections

descriptionPublicationkeyboard_double_arrow_right Article 01 Mar 1962 English Publisher:Springer Science and Business Media LLCJournal:Il Nuovo Cimento, volume 23, pages 1,136-1,139 (issn: 0029-6341, eissn: 1827-6121,

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Authors: A. Agodi; G. Pappalardo; R. Ricamo; D. Vinciguerra;

doi: 10.1007/bf02731272

Fluctuations in nuclear reaction cross-sections

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Abstract

Gross structure is observed in the cross sections for neutron reactions on nuclei with A near 30, when the cross sections are plotted as functions of the neutron energy (between about 2 and 5 Mev). The observed peaks are much more closely spaced than would be the case if they were caused by single compound- nucleus energy levels. An explanation is offered for the observed phenoraenon, based on statistical fluctuations in the compound-nucleus energylevel density near a given neutron energy. In order to observe the structure in question, measurements must be carried out with a resolution on the order of 100 kev. (T.F.H.)

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