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The n-d total cross section was measured at 241 different energies to a precision of 5.7-1.0% and an energy resolution of 2.0-5.1% for 2.25 <£"< 15.0 MeV. The results support the correctness of present three-body calculations, and exhibit no evidence for a Wigner cusp near the predicted threshold for dineutron production. In the absence of such a cusp, an experiment of this type furnishes very little information regarding the existence of the dineutron, or of violations of charge independence. 157

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