R-Matrix description of particle energy spectra produced by low-energy T+T reactions

An R-matrix model for three-body final states is presented and applied to a recent measurement of the neutron energy spectrum from the T+T->2n+alpha reaction. The calculation includes the n-alpha and n-n interactions in the final state, angular momentum conservation, antisymmetrization, and the i...

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Veröffentlicht in:arXiv.org 2015-04
Hauptverfasser: Brune, C R, Caggiano, J A, Sayre, D B, Bacher, A D, Hale, G M, Paris, M W
Format: Artikel
Sprache:eng
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Zusammenfassung:An R-matrix model for three-body final states is presented and applied to a recent measurement of the neutron energy spectrum from the T+T->2n+alpha reaction. The calculation includes the n-alpha and n-n interactions in the final state, angular momentum conservation, antisymmetrization, and the interference between different channels. A good fit to the measured spectrum is obtained, where clear evidence for the 5He ground state is observed. The model is also used to predict the alpha-particle spectrum from T+T as well as particle spectra from 3He+3He. The R-matrix approach presented here is very general, and can be adapted to a wide variety of problems with three-body final states.
ISSN:2331-8422
DOI:10.48550/arxiv.1504.02821