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Published November 22, 1965 | public
Journal Article Open

Alpha-particle-induced breakup of the deuteron

Abstract

Alpha-particle-induced deuteron breakup reactions have been studied in single-counter measurements at incident alpha-particle energies of 41.6 and 29.3 MeV. Simultaneous differential and total cross-section measurements have been carried out on protons, deuterons, and alpha particles. Unambiguous evidence for final-state resonance effects in the alpha-nucleon interactions have been obtained, particularly from the proton energy spectra; the p3/2 alpha-nucleon resonances corresponding to the He5 and Li5 ground states play important roles. As anticipated, phase-space-factor and zero-range Born-approximation calculations failed to reproduce the observed energy spectra. A more exact analysis which explicitly includes the alpha-nucleon interactions, represented by Gammel-Thaler phenomenological potentials, does provide good agreement with the experimental results both in spectrum shape and in total breakup cross section.

Additional Information

©1965 The American Physical Society. Received 13 July 1965. The authors are indebted to Professor K. R. Greider for extensive discussions, to Dr. H. Nakamura for collaboration in the t-matrix calculations, and to Dr. C. Zupancic and Dr. P. F. Donovan for information concerning their measurement prior to its publication. Professor J. C. Overley, J. Birnbaum, and J. E. Poth assisted in taking some of the experimental data.

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August 21, 2023
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