Final-State Interactions between Noncompound Light Particles forO16-Induced Reactions onAu197atEA=25MeV

Correlations between protons, deuterons, and tritons at small relative momenta were measured for ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$-induced reactions on ${}_{}{}^{197}{}_{}{}^{}\mathrm{Au}$. Final-state interactions are observed for all measured correlations. Analysis of the measured two-deuteron correlations favors the $d-d$ phase shifts extracted by $R$-matrix techniques over those found from the resonating-group approach. The two-deuteron correlations, which cannot be explained by the decay of unbound resonances, yield source radii which are considerably larger than those extracted from two-proton correlations.