Elsevier

Nuclear Physics A

Volume 136, Issue 1, 13 October 1969, Pages 183-189
Nuclear Physics A

The heavy-particle stripping reaction in the elastic and inelastic scatterings of 3He and 3T by light nuclei: The 9Be(3He, 3He)9Be and 16O(3He, 3He)16O reactions

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Abstract

It was shown that the backward peaks appearing at large angles in the elastic and inelastic scattering of 3He (or t) by light nuclei which have not been accounted for by the usual optical model, could be interpreted by the same exchange effect as the heavy-particle stripping reaction in nuclear rearrangement collisions, as in the case of the elastic and inelastic scatterings of α-particles by the light nuclei presented in our previous paper.

The differential cross section is written in the plane wave cut-off Born approximation, where the spectroscopic factor of the 3He (or t) cluster reduced width was calculated from the nuclear shell model. As a typical example, the angular distributions of the 9Be(3He, 3He)9Be and 16O(3He, 3He)16O reactions are calculated and the remarkably good agreement with the experimental data is obtained and the “single-particle” cluster reduced widths of 3He are deduced by these analyses. Validity of the present approximation and other attempts to explain the peaks are also discussed.

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On leave from Department of Applied Sciences, Tohoku University, Sendai, Japan.

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