✦ LIBER ✦

Doorway structures in the radiative capture of neutrons by 28Si and 32S

✍ Scribed by M Micklinghoff; B Castel

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 720 KB
Volume: 114
Category: Article
ISSN: 0003-4916
DOI: 10.1016/0003-4916(78)90277-4

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✦ Synopsis

A method allowing the inclusion of single-particle resonances in the microscopic treatment of the nuclear reaction process is presented. The method based on the K matrix notation has for result to dampen the scattering wave function in the internal region and to remove all single-particle resonances from the continuum. As an application the quantitative analysis of the %i(n, y) and %(n, y) reaction is presented. In both reactions the trend and magnitude of the cross sections are reproduced very satisfactorily. The calculation also predicts the existence of doorway states embedded on the giant dipole and contributing significantly to the cross section. These doorway states are indeed consistent with the existence of rapid fluctuations observed in recent (n, yo) and (n, yJ measurements.

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