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Distribution correlations in Sb (n, p) Sn

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Il Nuovo Cimento (1955-1965)

Summary

The title reaction was studied at 14 MeV neutron energy and over the ranges 0 to 3 MeV excitation and 0 to 60°. It is demonstrated that the forward-peaked contribution is relatively concentrated at high proton energy and gives rise to most of the spectral group structure, and that the angle-insensitive portion has a smooth spectrum rising with decreasing proton energy. The isotropic portion does not fit the theoretical compound nucleus spectrum but is consistent with a process of incomplete compound nucleus formation. Total cross-section for the ranges of energy and angle studied is (22±4) mb. of which 20% is the anisotropic contribution.

Riassunto

È stata studiata la reazione di cui al titolo ad una energia neutronica di 14 MeV, con eccitazioni variabili fra 0 e 3 MeV sotto angoli da 0 a 60°. Si dimostra che il contributo diretto in avanti è comparativamente più concentrato per le alte energie protoniche e dà origine alla maggior parte della struttura spettrale del gruppo; si prova inoltre che la porzione non influenzata dall’angolo ha uno spettro regolarmente crescente col decrescere dell’energia protonica. La porzione isotropica non si accorda con lo spettro teorico del nucleo composto, ma è coerente con un processo di formazione incompleta del nucleo composto stesso. Per gli intervalli di energia e angolari studiati la sezione trasversale efficace è di (22±4) mb, di cui il 20% è costituito dal contributo anisotropico.

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Supported in part by the U.S. Atomic Energy Commission.

A portion of the work was submitted in partial fulfillment of the requirements for the degree of Master of Science at Brown University (June 1959).

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Peck, R.A., Eubank, H.P. & Howard, R.M. Distribution correlations in Sb (n, p) Sn. Nuovo Cim 14, 397–402 (1959). https://doi.org/10.1007/BF02728323

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  • DOI: https://doi.org/10.1007/BF02728323

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