The differential cross section of the 2H(n, np) reaction was measured at θn = 0°. Because of the applied special geometry the experimental data extend over a large fraction of the phase space, including several final state interaction regions as well as regions far from the dominance of quasi-two-body processes. The experiment was analysed with an exact three-body calculation using s-wave separable potentials (CEE). The analysis of the n-n and n-p final state interaction peaks gave ann = -16.3 ± 1.6 fm for the n-n 1S0 scattering length and rnn = 3.15 ± 0.7 fm for the effective range. Remarkable deviations from the calculated cross sections-were found in regions where no strong final state interaction was present.
- Nuclear reactions
ASJC Scopus subject areas
- Nuclear and High Energy Physics